<html>
<head>
    <title>form_s-8.htm</title>
    <!--Licensed to: orbital-->
    <!--Document Created using EDGARizer 2020 5.2.3.0-->
    <!--Copyright 1995 - 2009 Thomson Reuters. All rights reserved.-->
</head>
<body bgcolor="#ffffff" style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">
<div>
<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-WEIGHT: bold; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">As filed with the Securities and Exchange Commission on May 1, 2012</font></div>

<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="center">&#160;</div>

<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="right"><font style="DISPLAY: inline; FONT-WEIGHT: bold; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Registration No.&#160;333-<font style="DISPLAY: inline; TEXT-DECORATION: underline">&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; </font></font><br>
</div>

<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-WEIGHT: bold; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">&#160;</font></div>

<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-WEIGHT: bold; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">UNITED STATES</font></div>

<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-WEIGHT: bold; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">SECURITIES AND EXCHANGE COMMISSION</font></div>

<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-WEIGHT: bold; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Washington, D.C.&#160;&#160;20549</font></div>

<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">__________________</font></div>

<div style="DISPLAY: block; TEXT-INDENT: 0pt"><br>
</div>

<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify">&#160;</div>

<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-WEIGHT: bold; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">FORM S-8</font></div>

<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt; TEXT-ALIGN: center"><font style="DISPLAY: inline; FONT-WEIGHT: bold; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">REGISTRATION STATEMENT</font></div>

<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt; TEXT-ALIGN: center"><font style="DISPLAY: inline; FONT-WEIGHT: bold; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">UNDER THE SECURITIES ACT OF 1933</font><br>
</div>

<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify">&#160;</div>

<div>
<table cellpadding="0" cellspacing="0" width="100%" style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">
<tr>
<td valign="top" width="4%" style="PADDING-BOTTOM: 2px"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">&#160; </font></td>
<td valign="top" width="70%" style="BORDER-BOTTOM: black 1px solid; TEXT-ALIGN: center">
<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt"><font style="DISPLAY: inline; FONT-WEIGHT: bold; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">ORBITAL SCIENCES CORPORATION</font></div>
</td>
<td valign="top" width="4%" style="PADDING-BOTTOM: 2px"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">&#160; </font></td>
</tr><tr>
<td valign="top" width="4%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">&#160; </font></td>
<td valign="top" width="70%">
<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">(Exact Name of Registrant as Specified in its Charter)</font></div>
</td>
<td valign="top" width="4%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">&#160; </font></td>
</tr></table>
</div>

<div style="DISPLAY: block; TEXT-INDENT: 0pt"><br>
</div>

<div>
<table cellpadding="0" cellspacing="0" width="100%" style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">
<tr>
<td valign="top" width="23%" style="BORDER-BOTTOM: black 1px solid; TEXT-ALIGN: center">
<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt"><font style="DISPLAY: inline; FONT-WEIGHT: bold; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">Delaware</font></div>
</td>
<td valign="top" width="4%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">&#160; </font></td>
<td valign="top" width="23%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">&#160; </font></td>
<td valign="top" width="4%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">&#160; </font></td>
<td valign="top" width="23%" style="BORDER-BOTTOM: black 1px solid; TEXT-ALIGN: center">
<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt"><font style="DISPLAY: inline; FONT-WEIGHT: bold; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">06-1209561</font></div>
</td>
</tr><tr>
<td valign="top" width="23%">
<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">(State or Other Jurisdiction of Incorporation)</font></div>
</td>
<td valign="top" width="4%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">&#160; </font></td>
<td valign="top" width="23%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">&#160; </font></td>
<td valign="top" width="4%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">&#160; </font></td>
<td valign="top" width="23%">
<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">(IRS Employer Identification No.)</font></div>
</td>
</tr></table>
</div>

<div style="DISPLAY: block; TEXT-INDENT: 0pt"><br>
</div>

<div>
<table cellpadding="0" cellspacing="0" width="100%" style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">
<tr>
<td valign="top" width="11%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">&#160; </font></td>
<td valign="top" width="56%" style="BORDER-BOTTOM: black 1px solid; TEXT-ALIGN: center">
<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt"><font style="DISPLAY: inline; FONT-WEIGHT: bold; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">45101 Warp Drive, Dulles, Virginia&#160;&#160;20166</font></div>
</td>
<td valign="top" width="10%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">&#160; </font></td>
</tr><tr>
<td valign="top" width="11%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">&#160; </font></td>
<td valign="top" width="56%">
<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">(Address of Principal Executive Offices)</font></div>
</td>
<td valign="top" width="10%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">&#160; </font></td>
</tr></table>
</div>

<div style="DISPLAY: block; TEXT-INDENT: 0pt">&#160;</div>

<div style="DISPLAY: block; TEXT-INDENT: 0pt">&#160;</div>

<div style="DISPLAY: block; TEXT-INDENT: 0pt">
<div>
<table cellpadding="0" cellspacing="0" width="100%" style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">
<tr>
<td valign="top" width="11%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">&#160; </font></td>
<td valign="top" width="56%" style="BORDER-BOTTOM: black 1px solid; TEXT-ALIGN: center">
<div><font style="DISPLAY: inline; FONT-WEIGHT: bold; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">Orbital Sciences Corporation</font></div>

<div><font style="DISPLAY: inline; FONT-WEIGHT: bold; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">Amended and Restated 2005 Stock Incentive Plan</font></div>
</td>
<td valign="top" width="10%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">&#160; </font></td>
</tr><tr>
<td valign="top" width="11%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">&#160; </font></td>
<td valign="top" width="56%">
<div align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">(Full title of the plan)</font></div>

<div style="DISPLAY: block; TEXT-INDENT: 0pt">&#160;</div>
</td>
<td valign="top" width="10%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">&#160; </font></td>
</tr><tr>
<td valign="top" width="11%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">&#160; </font></td>
<td valign="top" width="56%" style="BORDER-BOTTOM: black 1px; TEXT-ALIGN: center">
<div><font style="DISPLAY: inline; FONT-WEIGHT: bold; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">Susan Herlick</font></div>

<div><font style="DISPLAY: inline; FONT-WEIGHT: bold; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">Senior Vice President, General Counsel and Secretary</font></div>

<div><font style="DISPLAY: inline; FONT-WEIGHT: bold; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">Orbital Sciences Corporation</font></div>

<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt">
<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt"><font style="DISPLAY: inline; FONT-WEIGHT: bold; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">45101 Warp Drive</font></div>

<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt"><font style="DISPLAY: inline; FONT-WEIGHT: bold; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">Dulles, Virginia 20166</font></div>

<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt"><font style="DISPLAY: inline; FONT-WEIGHT: bold; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">(703) 406-5000</font></div>
</div>
</td>
<td valign="top" width="10%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">&#160; </font></td>
</tr><tr>
<td valign="top" width="11%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">&#160;</font></td>
<td valign="top" width="56%" style="BORDER-TOP: black 1px solid; BORDER-BOTTOM: 4px; TEXT-ALIGN: center">
<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt"><font style="DISPLAY: inline; FONT-WEIGHT: bold; FONT-SIZE: 10pt; FONT-FAMILY: times new roman"><font style="DISPLAY: inline; FONT-WEIGHT: normal; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">(Name, address, including zip code, and telephone number, including area code, of agent for service)</font></font></div>

<font style="DISPLAY: inline; FONT-WEIGHT: bold; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">&#160;</font></td>
<td valign="top" width="10%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">&#160;</font></td>
</tr></table>
</div>
</div>

<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify">&#160;</div>

<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify">&#160;</div>

<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, or a smaller reporting company. See the definitions of &#8220;large accelerated filer,&#8221; &#8220;accelerated filer&#8221; and &#8220;smaller reporting company&#8221; in Rule 12b-2 of the Exchange Act.</font></div>

<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">&#160;</font></div>

<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left">
<div>
<table cellpadding="0" cellspacing="0" width="100%" style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">
<tr>
<td valign="top" width="9%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">&#160; </font></td>
<td align="left" valign="top" width="16%">
<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">Large accelerated filer <font style="DISPLAY: inline; FONT-FAMILY: wingdings">&#254;</font></font></div>
</td>
<td valign="top" width="38%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">&#160; </font></td>
<td align="left" valign="top" width="37%">
<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">Accelerated filer <font style="DISPLAY: inline; FONT-FAMILY: wingdings">o</font></font></div>
</td>
</tr><tr>
<td valign="top" width="9%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">&#160; </font></td>
<td align="left" valign="top" width="16%">
<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">Non-accelerated filer&#160;&#160;<font style="DISPLAY: inline; FONT-FAMILY: wingdings">o</font></font></div>
</td>
<td align="left" valign="top" width="38%">
<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">(Do not check if a smaller reporting company)</font></div>
</td>
<td align="left" valign="top" width="37%">
<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">Smaller reporting company <font style="DISPLAY: inline; FONT-FAMILY: wingdings">o</font></font></div>
</td>
</tr></table>
</div>
</div>

<div style="DISPLAY: block; TEXT-INDENT: 0pt"><br>
</div>

<div style="DISPLAY: block; TEXT-INDENT: 0pt"><br>
</div>

<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">CALCULATION OF REGISTRATION FEE</font></div>

<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify">&#160;</div>

<div>
<table cellpadding="0" cellspacing="0" width="100%" style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">
<tr>
<td valign="top" width="26%" style="BORDER-TOP: black 2.25pt double; BORDER-BOTTOM: black 1px solid; TEXT-ALIGN: center">
<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0.2pt"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">Title of </font><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">securities to</font></div>

<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0.2pt"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">be registered</font></div>
</td>
<td valign="top" width="17%" style="BORDER-TOP: black 2.25pt double; BORDER-BOTTOM: black 1px solid; TEXT-ALIGN: center">
<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0.2pt"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">Amount to be registered (1)</font></div>
</td>
<td valign="top" width="20%" style="BORDER-TOP: black 2.25pt double; BORDER-BOTTOM: black 1px solid; TEXT-ALIGN: center">
<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0.2pt"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">Proposed</font></div>

<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0.2pt"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">maximum offering price per share (2)</font></div>
</td>
<td valign="top" width="21%" style="BORDER-TOP: black 2.25pt double; BORDER-BOTTOM: black 1px solid; TEXT-ALIGN: center">
<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0.2pt"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">Proposed</font></div>

<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0.2pt"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">maximum aggregate offering price (2)</font></div>
</td>
<td valign="top" width="16%" style="BORDER-TOP: black 2.25pt double; BORDER-BOTTOM: black 1px solid; TEXT-ALIGN: center">
<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0.2pt"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">Amount of registration fee (2)</font></div>
</td>
</tr><tr>
<td valign="top" width="26%" style="BORDER-BOTTOM: black 4px double">
<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0.2pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">Common Stock, par value $.01 per share</font></div>
</td>
<td valign="top" width="17%" style="BORDER-BOTTOM: black 4px double">
<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0.2pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">2,500,000 shares</font></div>

<div style="DISPLAY: block; TEXT-INDENT: 0pt">&#160;</div>
</td>
<td valign="top" width="20%" style="BORDER-BOTTOM: black 4px double">
<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0.2pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">$12.01</font></div>
</td>
<td valign="top" width="21%" style="BORDER-BOTTOM: black 4px double">
<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0.2pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">$30,025,000</font></div>
</td>
<td valign="top" width="16%" style="BORDER-BOTTOM: black 4px double">
<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0.2pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">$3,441</font></div>
</td>
</tr></table>
</div>

<div style="DISPLAY: block; TEXT-INDENT: 0pt"><br>
</div>

<div>
<table cellpadding="0" cellspacing="0" width="100%" style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">
<tr>
<td valign="top" width="8%">
<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">(1)</font></div>
</td>
<td valign="top" width="80%">
<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">Pursuant to Rule 416 under the Securities Act of 1933, as amended, this Registration Statement shall also cover any additional shares of common stock which become issuable under the above-named plan by reason of any stock dividend, stock split, recapitalization or any other similar transaction effected without the receipt of consideration which results in an increase in the number of our outstanding shares of common stock.</font></div>

<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify">&#160;</div>
</td>
</tr><tr>
<td valign="top" width="8%">
<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">(2)</font></div>
</td>
<td valign="top" width="80%">
<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">Estimated solely for the purpose of calculating the registration fee pursuant to Rule 457 of the Securities Act of 1933, as amended, based on the average of the high and low prices per share of the common stock, par value $0.01 per share, of Orbital Sciences Corporation, reported on the New York Stock Exchange on April 24, 2012.</font></div>
</td>
</tr></table>
</div>

<div style="DISPLAY: block; TEXT-INDENT: 0pt"><br>
</div>

<div style="DISPLAY: block; TEXT-INDENT: 0pt"><br>
</div>

<br>
<div id="PGBRK" style="MARGIN-LEFT: 0pt; WIDTH: 100%; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt">
<div id="FTR">
<div style="WIDTH: 100%" align="left">
<div style="DISPLAY: block; TEXT-INDENT: 0pt"><br>
</div>
</div>

<div id="GLFTR" style="WIDTH: 100%" align="left"><font style="DISPLAY: inline; FONT-SIZE: 8pt; FONT-FAMILY: Times New Roman">&#160; </font></div>
</div>

<div id="PN" style="PAGE-BREAK-AFTER: always; WIDTH: 100%">
<div style="WIDTH: 100%; TEXT-ALIGN: center"><font style="DISPLAY: inline; FONT-SIZE: 8pt; FONT-FAMILY: Times New Roman">&#160; </font></div>

<div style="WIDTH: 100%; TEXT-ALIGN: center">
<hr style="COLOR: black" noshade size="2">
</div>
</div>

<div id="HDR">
<div id="GLHDR" style="WIDTH: 100%" align="right"><font style="DISPLAY: inline; FONT-SIZE: 8pt; FONT-FAMILY: Times New Roman">&#160; </font></div>
</div>
</div>

<br>
<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-WEIGHT: bold; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">EXPLANATORY NOTE</font></div>

<div style="DISPLAY: block; TEXT-INDENT: 0pt"><br>
</div>

<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><font id="TAB1" style="MARGIN-LEFT: 18pt"></font>This Registration Statement is being filed to register an aggregate of 2,500,000 additional shares of common stock for issuance under the Orbital Sciences Corporation Amended and Restated 2005 Stock Incentive Plan.</font></div>

<div style="DISPLAY: block; TEXT-INDENT: 0pt"><br>
</div>

<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><font id="TAB1" style="MARGIN-LEFT: 18pt"></font>As permitted by General Instruction E to Form S-8, this Registration Statement incorporates by reference the contents of the Registration Statement on Form S-8 (Registration No. File No. 333-124807) filed on May 11, 2005, except to the extent supplemented, amended or superseded by the information set forth herein.</font></div>

<div style="DISPLAY: block; TEXT-INDENT: 0pt"><br>
</div>

<div style="DISPLAY: block; TEXT-INDENT: 0pt"><br>
</div>

<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-WEIGHT: bold; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">PART II</font></div>

<div style="DISPLAY: block; TEXT-INDENT: 0pt"><br>
</div>

<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-WEIGHT: bold; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">INFORMATION REQUIRED IN THE REGISTRATION STATEMENT</font></div>

<div style="DISPLAY: block; TEXT-INDENT: 0pt"><br>
</div>

<div style="DISPLAY: block; TEXT-INDENT: 0pt"><br>
</div>

<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-WEIGHT: bold; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Item 3.&#160;&#160;Incorporation of Documents by Reference.</font></div>

<div style="DISPLAY: block; TEXT-INDENT: 0pt"><br>
</div>

<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><font id="TAB1" style="MARGIN-LEFT: 18pt"></font>The following documents previously filed with the Securities and Exchange Commission are incorporated by reference in this registration statement, excluding any information furnished under Item 2.02 of any Current Report on Form&#160;8-K, any furnished exhibit relating to such information, and any other information that is furnished and not filed:</font></div>

<div style="DISPLAY: block; TEXT-INDENT: 0pt"><br>
</div>

<div>
<table cellpadding="0" cellspacing="0" id="list" width="100%" style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">
<tr valign="top">
<td align="right" style="WIDTH: 54pt">
<div><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">(a)&#160;&#160;</font></div>
</td>
<td>
<div style="MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">The Registrant&#8217;s Annual Report on Form 10-K for the fiscal year ended December 31, 2011, filed on February 29, 2012.</font></div>
</td>
</tr></table>
</div>

<div style="DISPLAY: block; TEXT-INDENT: 0pt"><br>
</div>

<div>
<table cellpadding="0" cellspacing="0" id="list" width="100%" style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">
<tr valign="top">
<td align="right" style="WIDTH: 54pt">
<div><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">(b)&#160;&#160;</font></div>
</td>
<td>
<div style="MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">The Registrant&#8217;s Quarterly Report on Form 10-Q for the quarter ended March 31, 2012, filed on April 27, 2012.</font></div>
</td>
</tr></table>
</div>

<div style="DISPLAY: block; TEXT-INDENT: 0pt"><br>
</div>

<div>
<table cellpadding="0" cellspacing="0" id="list" width="100%" style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">
<tr valign="top">
<td align="right" style="WIDTH: 54pt">
<div><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">(c)&#160;&#160;</font></div>
</td>
<td>
<div style="MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">The Registrant&#8217;s Current Reports on Form 8-K filed on February 1, 2012, February 21, 2012 and May 1, 2012.</font></div>
</td>
</tr></table>
</div>

<div style="DISPLAY: block; TEXT-INDENT: 0pt"><br>
</div>

<div>
<table cellpadding="0" cellspacing="0" id="list" width="100%" style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">
<tr valign="top">
<td align="right" style="WIDTH: 54pt">
<div><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">(d)&#160;&#160;</font></div>
</td>
<td>
<div style="MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">The description of the Registrant&#8217;s common stock contained in the Registrant&#8217;s Registration Statement on Form 8-A filed on July 6, 1998 (file number 001-14279).</font></div>
</td>
</tr></table>
</div>

<div style="DISPLAY: block; TEXT-INDENT: 0pt"><br>
</div>

<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><font id="TAB1" style="MARGIN-LEFT: 18pt"></font>In addition, all documents and reports filed by the Registrant subsequent to the date hereof pursuant to Sections&#160;13(a), 13(c), 14 and 15(d) of the Securities and Exchange Act of 1934, prior to the filing of a post-effective amendment to this registration statement which indicates that all securities offered have been sold or which deregisters all securities remaining unsold, shall be deemed to be incorporated by reference in this registration statement and to be part hereof from the date of filing of such documents or reports. Any statement contained in a document incorporated or deemed to be incorporated by reference herein shall be deemed to be modified or superseded for purposes of this registration statement to the extent that a statement contained herein or in any other subsequent filed document which also is or is deemed to be incorporated by reference herein modifies or supersedes such statement. Any such statement so modified or superseded shall not be deemed, except as so modified or superseded, to constitute a part of this registration statement.</font></div>

<div style="DISPLAY: block; TEXT-INDENT: 0pt"><br>
</div>

<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify">&#160;</div>

<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-WEIGHT: bold; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Item 8.&#160;&#160;Exhibits.</font></div>

<div style="DISPLAY: block; TEXT-INDENT: 0pt"><br>
</div>

<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><font id="TAB1" style="MARGIN-LEFT: 18pt"></font>The following exhibits are filed as a part of this registration statement:</font></div>

<div style="DISPLAY: block; TEXT-INDENT: 0pt"><br>
</div>

<div>
<table cellpadding="0" cellspacing="0" width="100%" style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">
<tr>
<td align="left" valign="top" width="16%" style="BORDER-BOTTOM: black 2px solid">
<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">&#160;</font></div>

<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">Exhibit <font style="DISPLAY: inline">Number</font></font></div>
</td>
<td valign="top" width="84%" style="BORDER-BOTTOM: black 2px solid">
<div style="DISPLAY: block; TEXT-INDENT: 0pt">&#160;</div>

<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman"><font style="DISPLAY: inline">Description</font></font></div>
</td>
</tr><tr>
<td valign="top" width="16%">
<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">4.1</font></div>
</td>
<td valign="top" width="84%">
<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">Orbital Sciences Corporation Amended and Restated 2005 Stock Incentive Plan (incorporated by reference to Exhibit 10.1 to the Registrant&#8217;s Current Report on Form 8-K filed on May 1, 2012).</font></div>

<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify">&#160;</div>
</td>
</tr><tr>
<td valign="top" width="16%">
<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">4.2</font></div>
</td>
<td valign="top" width="84%">
<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">Form of Stock Unit Agreement under the Amended and Restated 2005 Stock Incentive Plan (incorporated by reference to Exhibit 10.2 to the Registrant&#8217;s Current Report on Form 8-K filed on May 1, 2012).</font></div>

<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify">&#160;</div>
</td>
</tr><tr>
<td valign="top" width="16%">
<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">5.1</font></div>
</td>
<td valign="top" width="84%">
<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">Opinion of Susan Herlick, Senior Vice President, General Counsel and Secretary of Orbital Sciences Corporation (filed herewith).</font></div>

<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify">&#160;</div>
</td>
</tr><tr>
<td valign="top" width="16%">
<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">23.1</font></div>
</td>
<td valign="top" width="84%">
<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">Consent of Susan Herlick, Senior Vice President, General Counsel and Secretary of Orbital Sciences Corporation (contained in Exhibit&#160;5.1).</font></div>

<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify">&#160;</div>
</td>
</tr><tr>
<td valign="top" width="16%">
<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">23.2</font></div>
</td>
<td valign="top" width="84%">
<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">Consent of PricewaterhouseCoopers LLP (filed herewith).</font></div>

<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify">&#160;</div>
</td>
</tr><tr>
<td valign="top" width="16%">
<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">24.1</font></div>
</td>
<td valign="top" width="84%">
<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">Power of Attorney (contained on the signature pages).</font></div>
</td>
</tr></table>
</div>

<div style="DISPLAY: block; TEXT-INDENT: 0pt"><br>
&#160;</div>

<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-WEIGHT: bold; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Item 9.&#160;&#160;Undertakings.</font></div>

<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify">&#160;</div>

<div>
<table cellpadding="0" cellspacing="0" id="list" width="100%" style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">
<tr valign="top">
<td align="right" style="WIDTH: 54pt">
<div><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">(a)&#160;&#160;</font></div>
</td>
<td>
<div style="MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">The undersigned Registrant hereby undertakes:</font></div>
</td>
</tr></table>
</div>

<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left"><a name="sE28801988A1897BB57DF0D9969CCFEA7"><!--EFPlaceholder--></a><br>
</div>

<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 72pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">(1)&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;To file, during any period in which offers or sales are being made, a post-effective amendment to this registration statement:</font></div>

<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 108pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">(i)&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;To include any prospectus required by Section 10(a)(3) of the Securities Act of 1933;</font></div>

<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 108pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">(ii)&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;To reflect in the prospectus any facts or events arising after the effective date of the registration statement (or the most recent post-effective amendment thereof) which, individually or in the aggregate, represent a fundamental change in the information set forth in the registration statement. Notwithstanding the foregoing, any increase or decrease in volume of securities offered (if the total dollar value of securities offered would not exceed that which was registered) and any deviation from the low or high end of the estimated maximum offering range may be reflected in the form of prospectus filed with the Commission pursuant to Rule 424(b) if, in the aggregate, the changes in volume and price represent no more than a 20 percent change in the maximum aggregate offering price set forth in the &#8220;Calculation of Registration Fee&#8221; table in the effective registration statement; and</font></div>

<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 108pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">(iii)&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;To include any material information with respect to the plan of distribution not previously disclosed in the registration statement or any material change to such information in the registration statement; <font style="DISPLAY: inline; FONT-STYLE: italic">provided, however</font>, that paragraphs (a)(1)(i) and (a)(1)(ii) do not apply if the registration statement is on Form S-3, Form S-8 or Form F-3, and the information required to be included in a post-effective amendment by those paragraphs is contained in periodic reports filed with or furnished to the Commission by the Registrant pursuant to Section 13 or Section 15(d) of the Securities Exchange Act that are incorporated by reference in the registration statement.</font></div>

<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 72pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">(2)&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;That, for the purpose of determining any liability under the Securities Act of 1933, each such post-effective amendment shall be deemed to be a new registration statement relating to the securities offered therein, and the offering of such securities at that time shall be deemed to be the initial<font style="DISPLAY: inline; FONT-STYLE: italic"> bona fide</font> offering thereof.</font></div>

<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 72pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">(3)&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;To remove from registration by means of a post-effective amendment any of the securities being registered which remain unsold at the termination of the offering.</font></div>

<div style="DISPLAY: block; TEXT-INDENT: 0pt"><br>
</div>

<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 36pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">(b)&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;The undersigned Registrant hereby undertakes that, for purposes of determining any liability under the Securities Act of 1933, each filing of the Registrant&#8217;s annual report pursuant to Section 13(a) or Section 15(d) of the Securities Exchange Act of 1934 (and, where applicable, each filing of an employee benefit plan&#8217;s annual report pursuant to Section 15(d) of the Securities Exchange Act of 1934) that is incorporated by reference in the registration statement shall be deemed to be a new registration statement relating to the securities offered therein, and the offering of such securities at that time shall be deemed to be the initial<font style="DISPLAY: inline; FONT-STYLE: italic"> bona fide</font> offering thereof.</font></div>

<div style="DISPLAY: block; TEXT-INDENT: 0pt"><br>
</div>

<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 36pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">(c)&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;Insofar as indemnification for liabilities arising under the Securities Act of 1933 may be permitted to directors, officers, and controlling persons of the registrant pursuant to the foregoing provisions, or otherwise, the Registrant has been advised that in the opinion of the Securities and Exchange Commission such indemnification is against public policy as expressed in the Act and is, therefore, unenforceable. In the event that a claim for indemnification against such liabilities (other than the payment by the Registrant of expenses incurred or paid by a director, officer or controlling person of the Registrant in the successful defense of any action, suit or proceeding) is asserted by such director, officer or controlling person in connection with the securities being registered, the Registrant will, unless in the opinion of its counsel the matter has been settled by controlling precedent, submit to a court of appropriate jurisdiction the question whether such indemnification by it is against public policy as expressed in the Act and will be governed by the final adjudication of such issue.</font></div>

<br>
<div id="PGBRK" style="MARGIN-LEFT: 0pt; WIDTH: 100%; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt">
<div id="FTR">
<div style="WIDTH: 100%" align="left">
<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">&#160;</font></div>

<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: -7.2pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">&#160;</font></div>
</div>

<div id="GLFTR" style="WIDTH: 100%" align="left"><font style="DISPLAY: inline; FONT-SIZE: 8pt; FONT-FAMILY: Times New Roman">&#160; </font></div>
</div>

<div id="PN" style="PAGE-BREAK-AFTER: always; WIDTH: 100%">
<div style="WIDTH: 100%; TEXT-ALIGN: center"><font style="DISPLAY: inline; FONT-SIZE: 8pt; FONT-FAMILY: Times New Roman">&#160; </font></div>

<div style="WIDTH: 100%; TEXT-ALIGN: center">
<hr style="COLOR: black" noshade size="2">
</div>
</div>

<div id="HDR">
<div id="GLHDR" style="WIDTH: 100%" align="right"><font style="DISPLAY: inline; FONT-SIZE: 8pt; FONT-FAMILY: Times New Roman">&#160; </font></div>
</div>
</div>

<br>
<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-WEIGHT: bold; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">SIGNATURES</font></div>

<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify">&#160;</div>

<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><font id="TAB1" style="MARGIN-LEFT: 18pt"></font>Pursuant to the requirements of the Securities Act of 1933, the Registrant certifies that it has reasonable grounds to believe that it meets all of the requirements for filing on Form&#160;S-8 and has duly caused this registration statement to be signed on its behalf by the undersigned, thereunto duly authorized, in the County of Loudoun, the Commonwealth of Virginia, on the first day of May, 2012.</font></div>

<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify">&#160;</div>

<div style="DISPLAY: block; MARGIN-LEFT: 234pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-WEIGHT: bold; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><font id="TAB2" style="LETTER-SPACING: 9pt">&#160;&#160;&#160;</font><font id="TAB2" style="LETTER-SPACING: 9pt">&#160;&#160;&#160;</font><font id="TAB2" style="LETTER-SPACING: 9pt">&#160;&#160;&#160;</font><font id="TAB2" style="LETTER-SPACING: 9pt">&#160;</font></font></div>

<div align="center">
<table bgcolor="white" cellpadding="0" cellspacing="0" width="100%" style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">
<tr>
<td width="45%"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman">&#160;</font></td>
<td width="38%"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman">&#160;<font style="DISPLAY: inline; FONT-WEIGHT: bold">&#160;ORBITAL SCIENCES CORPORATION</font></font></td>
<td width="17%"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman">&#160;</font></td>
</tr><tr>
<td width="45%"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman">&#160;</font></td>
<td width="38%"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman">&#160;</font></td>
<td width="17%"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman">&#160;</font></td>
</tr></table>
</div>

<div align="center">
<table border="0" cellpadding="0" cellspacing="0" id="hangingindent" width="100%" style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">
<tr valign="top">
<td style="PADDING-BOTTOM: 2px; WIDTH: 448px">
<div><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">&#160; </font></div>
</td>
<td style="PADDING-BOTTOM: 2px; WIDTH: 19px">
<div style="MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">By:</font></div>
</td>
<td width="198" style="BORDER-BOTTOM: black 2px solid">&#160;/s/David W. Thompson</td>
<td width="317" style="PADDING-BOTTOM: 2px">&#160;</td>
</tr></table>
</div>

<div>
<table align="center" border="0" cellpadding="0" cellspacing="0" id="hangingindent" width="100%" style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">
<tr valign="top">
<td style="WIDTH: 468px">
<div><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">&#160; </font></div>
</td>
<td width="514">
<div align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">David W. Thompson</font></div>
</td>
</tr></table>
</div>

<div>
<table align="center" border="0" cellpadding="0" cellspacing="0" id="hangingindent" width="100%" style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">
<tr valign="top">
<td style="WIDTH: 467px">
<div><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">&#160; </font></div>
</td>
<td width="515">
<div align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Chairman of the Board, President </font></div>

<div align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">and Chief Executive Officer</font></div>
</td>
</tr></table>
</div>

<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify">&#160;</div>

<div style="DISPLAY: block; TEXT-INDENT: 0pt"><br>
</div>

<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-WEIGHT: bold; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">POWER OF ATTORNEY</font></div>

<div style="DISPLAY: block; TEXT-INDENT: 0pt"><br>
</div>

<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><font id="TAB1" style="MARGIN-LEFT: 18pt"></font>Each person whose signature appears below constitutes and appoints David W. Thompson and Susan Herlick, or any of them, their true and lawful attorneys-in-fact and agents, with full power of substitution and capacities, for then and in their name, place and stead, in any and all capacities, to sign any amendments (including post-effective amendments) to this Registration Statement, and to file the same, with all exhibits thereto, and other documents in connection therewith, with the SEC, granting unto said attorneys-in-fact an agents full power and authority to perform each and every act and thing requisite and necessary to be done in and about the premises, as fully to all intents and purposes as they might or could do in person, hereby ratifying and confirming all that said attorneys-in-fact and agents, or their substitute or substitutes, may lawfully do or cause to be done by virtue hereof.</font></div>

<div style="DISPLAY: block; TEXT-INDENT: 0pt"><br>
</div>

<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 18pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Pursuant to the requirements of the Securities Act of 1933, this registration statement has been signed by the following persons in the capacities and on the dates indicated.</font></div>

<div style="DISPLAY: block; TEXT-INDENT: 0pt"><br>
</div>

<div>
<table cellpadding="0" cellspacing="0" width="100%" style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">
<tr>
<td align="left" valign="top" width="25%">
<div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">Signature:</font></div>
</td>
<td valign="top" width="3%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">&#160; </font></td>
<td align="left" valign="top" width="24%">
<div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">Title:</font></div>
</td>
<td valign="top" width="3%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">&#160; </font></td>
<td align="left" valign="top" width="22%">
<div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">Date:</font></div>

<div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left">&#160;</div>
</td>
</tr><tr>
<td valign="top" width="25%" style="BORDER-BOTTOM: 4px; TEXT-ALIGN: left">
<div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-STYLE: italic; FONT-FAMILY: times new roman; TEXT-DECORATION: underline"><font style="DISPLAY: inline">/s/ David W. Thompson</font><font id="TAB2" style="COLOR: black; LETTER-SPACING: 3pt">&#160;</font></font></div>

<div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 12.55pt"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">David W. Thompson</font></div>
</td>
<td valign="top" width="3%" style="PADDING-BOTTOM: 2px"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">&#160; </font></td>
<td align="left" valign="top" width="24%" style="PADDING-BOTTOM: 2px">
<div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">Chairman of the Board, President and Chief Executive Officer, Director (Principal Executive Officer)</font></div>
</td>
<td valign="top" width="3%" style="PADDING-BOTTOM: 2px"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">&#160; </font></td>
<td align="left" valign="top" width="22%" style="PADDING-BOTTOM: 2px">
<div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">May 1, 2012</font></div>
</td>
</tr><tr>
<td valign="top" width="25%" style="BORDER-BOTTOM: 4px; TEXT-ALIGN: left">
<div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-STYLE: italic; FONT-FAMILY: times new roman">&#160;</font></div>

<div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-STYLE: italic; FONT-FAMILY: times new roman; TEXT-DECORATION: underline"><font style="DISPLAY: inline">/s/ Garrett E. Pierce</font><font id="TAB2" style="COLOR: black; LETTER-SPACING: 3pt">&#160;</font></font></div>

<div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">Garrett E. Pierce</font></div>
</td>
<td valign="top" width="3%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">&#160; </font></td>
<td align="left" valign="top" width="24%">
<div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">&#160;</font></div>

<div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">Vice Chairman and Chief Financial Officer, Director (Principal Financial Officer)</font></div>
</td>
<td valign="top" width="3%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">&#160; </font></td>
<td align="left" valign="top" width="22%">
<div style="DISPLAY: block; TEXT-INDENT: 0pt">&#160;</div>

<div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">May 1, 2012</font></div>
</td>
</tr><tr>
<td valign="top" width="25%" style="BORDER-BOTTOM: 4px; TEXT-ALIGN: left">
<div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-STYLE: italic; FONT-FAMILY: times new roman">&#160;</font></div>

<div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-STYLE: italic; FONT-FAMILY: times new roman; TEXT-DECORATION: underline"><font style="DISPLAY: inline">/s/ Hollis M. Thompson</font><font id="TAB2" style="COLOR: black; LETTER-SPACING: 3pt">&#160;</font></font></div>

<div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">Hollis M. Thompson</font></div>
</td>
<td valign="top" width="3%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">&#160; </font></td>
<td align="left" valign="top" width="24%">
<div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">&#160;</font></div>

<div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">Senior Vice President and Controller (Principal Accounting Officer)</font></div>
</td>
<td valign="top" width="3%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">&#160; </font></td>
<td align="left" valign="top" width="22%">
<div style="DISPLAY: block; TEXT-INDENT: 0pt">&#160;</div>

<div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">May 1, 2012</font></div>
</td>
</tr><tr>
<td valign="top" width="25%" style="BORDER-BOTTOM: 4px; TEXT-ALIGN: left">
<div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-STYLE: italic; FONT-FAMILY: times new roman">&#160;</font></div>

<div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-STYLE: italic; FONT-FAMILY: times new roman; TEXT-DECORATION: underline"><font style="DISPLAY: inline">/s/ Kevin P. Chilton</font><font id="TAB2" style="COLOR: black; LETTER-SPACING: 3pt">&#160;</font></font></div>

<div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">Kevin P. Chilton</font></div>
</td>
<td valign="top" width="3%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">&#160; </font></td>
<td align="left" valign="top" width="24%">
<div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">&#160;</font></div>

<div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">Director</font></div>
</td>
<td valign="top" width="3%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">&#160; </font></td>
<td align="left" valign="top" width="22%">
<div style="DISPLAY: block; TEXT-INDENT: 0pt">&#160;</div>

<div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">May 1, 2012</font></div>
</td>
</tr><tr>
<td valign="top" width="25%" style="BORDER-BOTTOM: 4px; TEXT-ALIGN: left">
<div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-STYLE: italic; FONT-FAMILY: times new roman">&#160;</font></div>

<div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-STYLE: italic; FONT-FAMILY: times new roman; TEXT-DECORATION: underline"><font style="DISPLAY: inline">/s/ Lennard A. Fisk</font><font id="TAB2" style="COLOR: black; LETTER-SPACING: 3pt">&#160;</font></font></div>

<div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">Lennard A. Fisk</font></div>
</td>
<td valign="top" width="3%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">&#160; </font></td>
<td align="left" valign="top" width="24%">
<div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">&#160;</font></div>

<div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">Director</font></div>
</td>
<td valign="top" width="3%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">&#160; </font></td>
<td align="left" valign="top" width="22%">
<div style="DISPLAY: block; TEXT-INDENT: 0pt">&#160;</div>

<div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">May 1, 2012</font></div>
</td>
</tr><tr>
<td valign="top" width="25%" style="BORDER-BOTTOM: 4px; TEXT-ALIGN: left">
<div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-STYLE: italic; FONT-FAMILY: times new roman">&#160;</font></div>

<div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-STYLE: italic; FONT-FAMILY: times new roman; TEXT-DECORATION: underline"><font style="DISPLAY: inline">/s/ Robert M. Hanisee</font><font id="TAB2" style="COLOR: black; LETTER-SPACING: 3pt">&#160;</font></font></div>

<div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">Robert M. Hanisee</font></div>
</td>
<td valign="top" width="3%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">&#160; </font></td>
<td align="left" valign="top" width="24%">
<div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">&#160;</font></div>

<div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">Director</font></div>
</td>
<td valign="top" width="3%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">&#160; </font></td>
<td align="left" valign="top" width="22%">
<div style="DISPLAY: block; TEXT-INDENT: 0pt">&#160;</div>

<div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">May 1, 2012</font></div>
</td>
</tr><tr>
<td valign="top" width="25%" style="BORDER-BOTTOM: 4px; TEXT-ALIGN: left">
<div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-STYLE: italic; FONT-FAMILY: times new roman">&#160;</font></div>

<div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-STYLE: italic; FONT-FAMILY: times new roman; TEXT-DECORATION: underline"><font style="DISPLAY: inline">/s/ Robert J. Hermann</font><font id="TAB2" style="COLOR: black; LETTER-SPACING: 3pt">&#160;</font></font></div>

<div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">Robert J. Hermann</font></div>
</td>
<td valign="top" width="3%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">&#160; </font></td>
<td align="left" valign="top" width="24%">
<div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">&#160;</font></div>

<div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">Director</font></div>
</td>
<td valign="top" width="3%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">&#160; </font></td>
<td align="left" valign="top" width="22%">
<div style="DISPLAY: block; TEXT-INDENT: 0pt">&#160;</div>

<div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">May 1, 2012</font></div>
</td>
</tr><tr>
<td valign="top" width="25%" style="BORDER-BOTTOM: 4px; TEXT-ALIGN: left">
<div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-STYLE: italic; FONT-FAMILY: times new roman">&#160;</font></div>

<div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-STYLE: italic; FONT-FAMILY: times new roman; TEXT-DECORATION: underline"><font style="DISPLAY: inline">/s/ Ronald T. Kadish</font><font id="TAB2" style="COLOR: black; LETTER-SPACING: 3pt">&#160;</font></font></div>

<div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">Ronald T. Kadish</font></div>
</td>
<td valign="top" width="3%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">&#160; </font></td>
<td align="left" valign="top" width="24%">
<div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">&#160;</font></div>

<div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">Director</font></div>
</td>
<td valign="top" width="3%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">&#160; </font></td>
<td align="left" valign="top" width="22%">
<div style="DISPLAY: block; TEXT-INDENT: 0pt">&#160;</div>

<div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">May 1, 2012</font></div>
</td>
</tr><tr>
<td valign="top" width="25%" style="BORDER-BOTTOM: 4px; TEXT-ALIGN: left">
<div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-STYLE: italic; FONT-FAMILY: times new roman">&#160;</font></div>

<div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-STYLE: italic; FONT-FAMILY: times new roman; TEXT-DECORATION: underline"><font style="DISPLAY: inline">/s/ Janice I. Obuchowski</font><font id="TAB2" style="COLOR: black; LETTER-SPACING: 3pt">&#160;</font></font></div>

<div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">Janice I. Obuchowski</font></div>
</td>
<td valign="top" width="3%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">&#160; </font></td>
<td align="left" valign="top" width="24%">
<div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">&#160;</font></div>

<div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">Director</font></div>
</td>
<td valign="top" width="3%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">&#160; </font></td>
<td align="left" valign="top" width="22%">
<div style="DISPLAY: block; TEXT-INDENT: 0pt">&#160;</div>

<div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">May 1, 2012</font></div>
</td>
</tr><tr>
<td valign="top" width="25%" style="BORDER-BOTTOM: 4px; TEXT-ALIGN: left">
<div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-STYLE: italic; FONT-FAMILY: times new roman">&#160;</font></div>

<div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-STYLE: italic; FONT-FAMILY: times new roman; TEXT-DECORATION: underline"><font style="DISPLAY: inline">/s/ James G. Roche</font><font id="TAB2" style="COLOR: black; LETTER-SPACING: 3pt">&#160;</font></font></div>

<div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">James G. Roche</font></div>
</td>
<td valign="top" width="3%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">&#160; </font></td>
<td align="left" valign="top" width="24%">
<div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">&#160;</font></div>

<div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">Director</font></div>
</td>
<td valign="top" width="3%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">&#160; </font></td>
<td align="left" valign="top" width="22%">
<div style="DISPLAY: block; TEXT-INDENT: 0pt">&#160;</div>

<div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">May 1, 2012</font></div>
</td>
</tr><tr>
<td valign="top" width="25%" style="BORDER-BOTTOM: 4px; TEXT-ALIGN: left">
<div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-STYLE: italic; FONT-FAMILY: times new roman">&#160;</font></div>

<div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-STYLE: italic; FONT-FAMILY: times new roman; TEXT-DECORATION: underline"><font style="DISPLAY: inline">/s/ Frank L. Salizzoni</font><font id="TAB2" style="COLOR: black; LETTER-SPACING: 3pt">&#160;</font></font></div>

<div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">Frank L. Salizzoni</font></div>
</td>
<td valign="top" width="3%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">&#160; </font></td>
<td align="left" valign="top" width="24%">
<div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">&#160;</font></div>

<div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">Director</font></div>
</td>
<td valign="top" width="3%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">&#160; </font></td>
<td align="left" valign="top" width="22%">
<div style="DISPLAY: block; TEXT-INDENT: 0pt">&#160;</div>

<div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">May 1, 2012</font></div>
</td>
</tr><tr>
<td valign="top" width="25%" style="BORDER-BOTTOM: 4px; TEXT-ALIGN: left">
<div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-STYLE: italic; FONT-FAMILY: times new roman">&#160;</font></div>

<div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-STYLE: italic; FONT-FAMILY: times new roman; TEXT-DECORATION: underline"><font style="DISPLAY: inline">/s/ Harrison H. Schmitt</font><font id="TAB2" style="COLOR: black; LETTER-SPACING: 3pt">&#160;</font></font></div>

<div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">Harrison H. Schmitt</font></div>
</td>
<td valign="top" width="3%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">&#160; </font></td>
<td align="left" valign="top" width="24%">
<div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">&#160;</font></div>

<div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">Director</font></div>
</td>
<td valign="top" width="3%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">&#160; </font></td>
<td align="left" valign="top" width="22%">
<div style="DISPLAY: block; TEXT-INDENT: 0pt">&#160;</div>

<div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">May 1, 2012</font></div>
</td>
</tr><tr>
<td valign="top" width="25%" style="BORDER-BOTTOM: 4px; TEXT-ALIGN: left">
<div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-STYLE: italic; FONT-FAMILY: times new roman">&#160;</font></div>

<div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-STYLE: italic; FONT-FAMILY: times new roman; TEXT-DECORATION: underline"><font style="DISPLAY: inline">/s/ James R. Thompson</font><font id="TAB2" style="COLOR: black; LETTER-SPACING: 3pt">&#160;</font></font></div>

<div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">James R. Thompson</font></div>
</td>
<td valign="top" width="3%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">&#160; </font></td>
<td align="left" valign="top" width="24%">
<div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">&#160;</font></div>

<div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">Director</font></div>
</td>
<td valign="top" width="3%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">&#160; </font></td>
<td align="left" valign="top" width="22%">
<div style="DISPLAY: block; TEXT-INDENT: 0pt">&#160;</div>

<div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">May 1, 2012</font></div>
</td>
</tr><tr>
<td valign="top" width="25%" style="BORDER-BOTTOM: 4px; TEXT-ALIGN: left">
<div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-STYLE: italic; FONT-FAMILY: times new roman">&#160;</font></div>

<div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-STYLE: italic; FONT-FAMILY: times new roman; TEXT-DECORATION: underline"><font style="DISPLAY: inline">/s/ Scott L. Webster</font><font id="TAB2" style="COLOR: black; LETTER-SPACING: 3pt">&#160;</font></font></div>

<div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">Scott L. Webster</font></div>
</td>
<td valign="top" width="3%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">&#160; </font></td>
<td align="left" valign="top" width="24%">
<div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">&#160;</font></div>

<div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">Director</font></div>
</td>
<td valign="top" width="3%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">&#160; </font></td>
<td align="left" valign="top" width="22%">
<div style="DISPLAY: block; TEXT-INDENT: 0pt">&#160;</div>

<div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">May 1, 2012</font></div>
</td>
</tr></table>
</div>

<div style="DISPLAY: block; TEXT-INDENT: 0pt"><br>
</div>

<div style="DISPLAY: block; TEXT-INDENT: 0pt"><br>
</div>

<br>
<div id="PGBRK" style="MARGIN-LEFT: 0pt; WIDTH: 100%; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt">
<div id="FTR">
<div style="WIDTH: 100%" align="left">
<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">&#160;</font></div>

<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: -7.2pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">&#160;</font></div>
</div>

<div id="GLFTR" style="WIDTH: 100%" align="left"><font style="DISPLAY: inline; FONT-SIZE: 8pt; FONT-FAMILY: Times New Roman">&#160; </font></div>
</div>

<div id="PN" style="PAGE-BREAK-AFTER: always; WIDTH: 100%">
<div style="WIDTH: 100%; TEXT-ALIGN: center"><font style="DISPLAY: inline; FONT-SIZE: 8pt; FONT-FAMILY: Times New Roman">&#160; </font></div>

<div style="WIDTH: 100%; TEXT-ALIGN: center">
<hr style="COLOR: black" noshade size="2">
</div>
</div>

<div id="HDR">
<div id="GLHDR" style="WIDTH: 100%" align="right"><font style="DISPLAY: inline; FONT-SIZE: 8pt; FONT-FAMILY: Times New Roman">&#160; </font></div>
</div>
</div>

<br>
<div style="DISPLAY: block; TEXT-INDENT: 0pt"><br>
</div>

<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 21.6pt" align="center"><font style="DISPLAY: inline; FONT-WEIGHT: bold; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">EXHIBIT INDEX</font></div>

<div style="DISPLAY: block; TEXT-INDENT: 0pt"><br>
</div>

<div style="DISPLAY: block; TEXT-INDENT: 0pt"><br>
</div>

<div>
<table cellpadding="0" cellspacing="0" width="100%" style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">
<tr>
<td align="left" valign="top" width="8%" style="BORDER-BOTTOM: black 2px solid">
<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">&#160;</font></div>

<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">Exhibit <font style="DISPLAY: inline">Number</font></font></div>
</td>
<td valign="top" width="60%" style="BORDER-BOTTOM: black 2px solid">
<div style="DISPLAY: block; TEXT-INDENT: 0pt">&#160;</div>

<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman"><font style="DISPLAY: inline">Description</font></font></div>
</td>
</tr><tr>
<td valign="top" width="8%">
<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">4.1</font></div>
</td>
<td valign="top" width="60%">
<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">Orbital Sciences Corporation Amended and Restated 2005 Stock Incentive Plan (incorporated by reference to Exhibit 10.1 to the Registrant&#8217;s Current Report on Form 8-K filed on May 1, 2012).</font></div>

<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify">&#160;</div>
</td>
</tr><tr>
<td valign="top" width="8%">
<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">4.2</font></div>
</td>
<td valign="top" width="60%">
<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">Form of Stock Unit Agreement under the Amended and Restated 2005 Stock Incentive Plan (incorporated by reference to Exhibit 10.2 to the Registrant&#8217;s Current Report on Form 8-K filed on May 1, 2012).</font></div>

<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify">&#160;</div>
</td>
</tr><tr>
<td valign="top" width="8%">
<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">5.1</font></div>
</td>
<td valign="top" width="60%">
<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">Opinion of Susan Herlick, Senior Vice President, General Counsel and Secretary of Orbital Sciences Corporation (filed herewith).</font></div>

<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify">&#160;</div>
</td>
</tr><tr>
<td valign="top" width="8%">
<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">23.1</font></div>
</td>
<td valign="top" width="60%">
<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">Consent of Susan Herlick, Senior Vice President, General Counsel and Secretary of Orbital Sciences Corporation (contained in Exhibit&#160;5.1).</font></div>

<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify">&#160;</div>
</td>
</tr><tr>
<td valign="top" width="8%">
<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">23.2</font></div>
</td>
<td valign="top" width="60%">
<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">Consent of PricewaterhouseCoopers LLP (filed herewith).</font></div>

<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify">&#160;</div>
</td>
</tr><tr>
<td valign="top" width="8%">
<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">24.1</font></div>
</td>
<td valign="top" width="60%">
<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">Power of Attorney (contained on the signature pages).</font></div>

<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify">&#160;</div>
</td>
</tr></table>
</div>

<div style="DISPLAY: block; TEXT-INDENT: 0pt"><br>
</div>
</div>
</body>
</html>
[{"type": "S-8", "sequence": "1", "filename": "form_s-8.htm", "description": "S-8", "secsgml_size_bytes": 85200}]
{"company-data": {"conformed-name": "ORBITAL SCIENCES CORP /DE/", "cik": "0000820736", "assigned-sic": "3663", "irs-number": "061209561", "state-of-incorporation": "DE", "fiscal-year-end": "1231"}, "filing-values": {"form-type": "S-8", "act": "33", "file-number": "333-181083", "film-number": "12801534"}, "business-address": {"street1": "45101 WARP DRIVE", "city": "DULLES", "state": "VA", "zip": "20166", "phone": "703 406 5524"}, "mail-address": {"street1": "45101 WARP DRIVE", "street2": "45101 WARP DRIVE", "city": "DULLES", "state": "VA", "zip": "20166"}, "former-company": {"former-conformed-name": "ORBITAL SCIENCES CORP II", "date-changed": "19900212"}}
form_s-8.htm
As filed with the Securities and Exchange Commission on May 1, 2012
Registration No. 333-
UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C.  20549
__________________
FORM S-8
REGISTRATION STATEMENT
UNDER THE SECURITIES ACT OF 1933
ORBITAL SCIENCES CORPORATION
(Exact Name of Registrant as Specified in its Charter)
Delaware
06-1209561
(State or Other Jurisdiction of Incorporation)
(IRS Employer Identification No.)
45101 Warp Drive, Dulles, Virginia  20166
(Address of Principal Executive Offices)
Orbital Sciences Corporation
Amended and Restated 2005 Stock Incentive Plan
(Full title of the plan)
Susan Herlick
Senior Vice President, General Counsel and Secretary
Orbital Sciences Corporation
45101 Warp Drive
Dulles, Virginia 20166
(703) 406-5000
(Name, address, including zip code, and telephone number, including area code, of agent for service)
Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, or a smaller reporting company. See the definitions of "large accelerated filer," "accelerated filer" and "smaller reporting company" in Rule 12b-2 of the Exchange Act.
Large accelerated filer
þ
Accelerated filer
o
Non-accelerated filer
o
(Do not check if a smaller reporting company)
Smaller reporting company
o
CALCULATION OF REGISTRATION FEE
Title of
securities to
be registered
Amount to be registered (1)
Proposed
maximum offering price per share (2)
Proposed
maximum aggregate offering price (2)
Amount of registration fee (2)
Common Stock, par value $.01 per share
2,500,000 shares
$12.01
$30,025,000
$3,441
(1)
Pursuant to Rule 416 under the Securities Act of 1933, as amended, this Registration Statement shall also cover any additional shares of common stock which become issuable under the above-named plan by reason of any stock dividend, stock split, recapitalization or any other similar transaction effected without the receipt of consideration which results in an increase in the number of our outstanding shares of common stock.
(2)
Estimated solely for the purpose of calculating the registration fee pursuant to Rule 457 of the Securities Act of 1933, as amended, based on the average of the high and low prices per share of the common stock, par value $0.01 per share, of Orbital Sciences Corporation, reported on the New York Stock Exchange on April 24, 2012.
EXPLANATORY NOTE
This Registration Statement is being filed to register an aggregate of 2,500,000 additional shares of common stock for issuance under the Orbital Sciences Corporation Amended and Restated 2005 Stock Incentive Plan.
As permitted by General Instruction E to Form S-8, this Registration Statement incorporates by reference the contents of the Registration Statement on Form S-8 (Registration No. File No. 333-124807) filed on May 11, 2005, except to the extent supplemented, amended or superseded by the information set forth herein.
PART II
INFORMATION REQUIRED IN THE REGISTRATION STATEMENT
Item 3.  Incorporation of Documents by Reference.
The following documents previously filed with the Securities and Exchange Commission are incorporated by reference in this registration statement, excluding any information furnished under Item 2.02 of any Current Report on Form 8-K, any furnished exhibit relating to such information, and any other information that is furnished and not filed:
(a)
The Registrant's Annual Report on Form 10-K for the fiscal year ended December 31, 2011, filed on February 29, 2012.
(b)
The Registrant's Quarterly Report on Form 10-Q for the quarter ended March 31, 2012, filed on April 27, 2012.
(c)
The Registrant's Current Reports on Form 8-K filed on February 1, 2012, February 21, 2012 and May 1, 2012.
(d)
The description of the Registrant's common stock contained in the Registrant's Registration Statement on Form 8-A filed on July 6, 1998 (file number 001-14279).
In addition, all documents and reports filed by the Registrant subsequent to the date hereof pursuant to Sections 13(a), 13(c), 14 and 15(d) of the Securities and Exchange Act of 1934, prior to the filing of a post-effective amendment to this registration statement which indicates that all securities offered have been sold or which deregisters all securities remaining unsold, shall be deemed to be incorporated by reference in this registration statement and to be part hereof from the date of filing of such documents or reports. Any statement contained in a document incorporated or deemed to be incorporated by reference herein shall be deemed to be modified or superseded for purposes of this registration statement to the extent that a statement contained herein or in any other subsequent filed document which also is or is deemed to be incorporated by reference herein modifies or supersedes such statement. Any such statement so modified or superseded shall not be deemed, except as so modified or superseded, to constitute a part of this registration statement.
Item 8.  Exhibits.
The following exhibits are filed as a part of this registration statement:
Exhibit
Number
Description
4.1
Orbital Sciences Corporation Amended and Restated 2005 Stock Incentive Plan (incorporated by reference to Exhibit 10.1 to the Registrant's Current Report on Form 8-K filed on May 1, 2012).
4.2
Form of Stock Unit Agreement under the Amended and Restated 2005 Stock Incentive Plan (incorporated by reference to Exhibit 10.2 to the Registrant's Current Report on Form 8-K filed on May 1, 2012).
5.1
Opinion of Susan Herlick, Senior Vice President, General Counsel and Secretary of Orbital Sciences Corporation (filed herewith).
23.1
Consent of Susan Herlick, Senior Vice President, General Counsel and Secretary of Orbital Sciences Corporation (contained in Exhibit 5.1).
23.2
Consent of PricewaterhouseCoopers LLP (filed herewith).
24.1
Power of Attorney (contained on the signature pages).
Item 9.  Undertakings.
(a)
The undersigned Registrant hereby undertakes:
(1)           To file, during any period in which offers or sales are being made, a post-effective amendment to this registration statement:
(i)           To include any prospectus required by Section 10(a)(3) of the Securities Act of 1933;
(ii)          To reflect in the prospectus any facts or events arising after the effective date of the registration statement (or the most recent post-effective amendment thereof) which, individually or in the aggregate, represent a fundamental change in the information set forth in the registration statement. Notwithstanding the foregoing, any increase or decrease in volume of securities offered (if the total dollar value of securities offered would not exceed that which was registered) and any deviation from the low or high end of the estimated maximum offering range may be reflected in the form of prospectus filed with the Commission pursuant to Rule 424(b) if, in the aggregate, the changes in volume and price represent no more than a 20 percent change in the maximum aggregate offering price set forth in the "Calculation of Registration Fee" table in the effective registration statement; and
(iii)          To include any material information with respect to the plan of distribution not previously disclosed in the registration statement or any material change to such information in the registration statement;
provided, however
, that paragraphs (a)(1)(i) and (a)(1)(ii) do not apply if the registration statement is on Form S-3, Form S-8 or Form F-3, and the information required to be included in a post-effective amendment by those paragraphs is contained in periodic reports filed with or furnished to the Commission by the Registrant pursuant to Section 13 or Section 15(d) of the Securities Exchange Act that are incorporated by reference in the registration statement.
(2)           That, for the purpose of determining any liability under the Securities Act of 1933, each such post-effective amendment shall be deemed to be a new registration statement relating to the securities offered therein, and the offering of such securities at that time shall be deemed to be the initial
bona fide
offering thereof.
(3)           To remove from registration by means of a post-effective amendment any of the securities being registered which remain unsold at the termination of the offering.
(b)           The undersigned Registrant hereby undertakes that, for purposes of determining any liability under the Securities Act of 1933, each filing of the Registrant's annual report pursuant to Section 13(a) or Section 15(d) of the Securities Exchange Act of 1934 (and, where applicable, each filing of an employee benefit plan's annual report pursuant to Section 15(d) of the Securities Exchange Act of 1934) that is incorporated by reference in the registration statement shall be deemed to be a new registration statement relating to the securities offered therein, and the offering of such securities at that time shall be deemed to be the initial
bona fide
offering thereof.
(c)           Insofar as indemnification for liabilities arising under the Securities Act of 1933 may be permitted to directors, officers, and controlling persons of the registrant pursuant to the foregoing provisions, or otherwise, the Registrant has been advised that in the opinion of the Securities and Exchange Commission such indemnification is against public policy as expressed in the Act and is, therefore, unenforceable. In the event that a claim for indemnification against such liabilities (other than the payment by the Registrant of expenses incurred or paid by a director, officer or controlling person of the Registrant in the successful defense of any action, suit or proceeding) is asserted by such director, officer or controlling person in connection with the securities being registered, the Registrant will, unless in the opinion of its counsel the matter has been settled by controlling precedent, submit to a court of appropriate jurisdiction the question whether such indemnification by it is against public policy as expressed in the Act and will be governed by the final adjudication of such issue.
SIGNATURES
Pursuant to the requirements of the Securities Act of 1933, the Registrant certifies that it has reasonable grounds to believe that it meets all of the requirements for filing on Form S-8 and has duly caused this registration statement to be signed on its behalf by the undersigned, thereunto duly authorized, in the County of Loudoun, the Commonwealth of Virginia, on the first day of May, 2012.
ORBITAL SCIENCES CORPORATION
By:
/s/David W. Thompson
David W. Thompson
Chairman of the Board, President
and Chief Executive Officer
POWER OF ATTORNEY
Each person whose signature appears below constitutes and appoints David W. Thompson and Susan Herlick, or any of them, their true and lawful attorneys-in-fact and agents, with full power of substitution and capacities, for then and in their name, place and stead, in any and all capacities, to sign any amendments (including post-effective amendments) to this Registration Statement, and to file the same, with all exhibits thereto, and other documents in connection therewith, with the SEC, granting unto said attorneys-in-fact an agents full power and authority to perform each and every act and thing requisite and necessary to be done in and about the premises, as fully to all intents and purposes as they might or could do in person, hereby ratifying and confirming all that said attorneys-in-fact and agents, or their substitute or substitutes, may lawfully do or cause to be done by virtue hereof.
Pursuant to the requirements of the Securities Act of 1933, this registration statement has been signed by the following persons in the capacities and on the dates indicated.
Signature:
Title:
Date:
/s/ David W. Thompson
David W. Thompson
Chairman of the Board, President and Chief Executive Officer, Director (Principal Executive Officer)
May 1, 2012
/s/ Garrett E. Pierce
Garrett E. Pierce
Vice Chairman and Chief Financial Officer, Director (Principal Financial Officer)
May 1, 2012
/s/ Hollis M. Thompson
Hollis M. Thompson
Senior Vice President and Controller (Principal Accounting Officer)
May 1, 2012
/s/ Kevin P. Chilton
Kevin P. Chilton
Director
May 1, 2012
/s/ Lennard A. Fisk
Lennard A. Fisk
Director
May 1, 2012
/s/ Robert M. Hanisee
Robert M. Hanisee
Director
May 1, 2012
/s/ Robert J. Hermann
Robert J. Hermann
Director
May 1, 2012
/s/ Ronald T. Kadish
Ronald T. Kadish
Director
May 1, 2012
/s/ Janice I. Obuchowski
Janice I. Obuchowski
Director
May 1, 2012
/s/ James G. Roche
James G. Roche
Director
May 1, 2012
/s/ Frank L. Salizzoni
Frank L. Salizzoni
Director
May 1, 2012
/s/ Harrison H. Schmitt
Harrison H. Schmitt
Director
May 1, 2012
/s/ James R. Thompson
James R. Thompson
Director
May 1, 2012
/s/ Scott L. Webster
Scott L. Webster
Director
May 1, 2012
EXHIBIT INDEX
Exhibit
Number
Description
4.1
Orbital Sciences Corporation Amended and Restated 2005 Stock Incentive Plan (incorporated by reference to Exhibit 10.1 to the Registrant's Current Report on Form 8-K filed on May 1, 2012).
4.2
Form of Stock Unit Agreement under the Amended and Restated 2005 Stock Incentive Plan (incorporated by reference to Exhibit 10.2 to the Registrant's Current Report on Form 8-K filed on May 1, 2012).
5.1
Opinion of Susan Herlick, Senior Vice President, General Counsel and Secretary of Orbital Sciences Corporation (filed herewith).
23.1
Consent of Susan Herlick, Senior Vice President, General Counsel and Secretary of Orbital Sciences Corporation (contained in Exhibit 5.1).
23.2
Consent of PricewaterhouseCoopers LLP (filed herewith).
24.1
Power of Attorney (contained on the signature pages).