old_contents: 
  '''
  Combine the tracks, then split out the science fields
  '''
  
  import os
  from glob import glob
  
  from tasks import virtualconcat, split
  
  # Grab all of the MS tracks in the folder (should be 12)
  myvis = glob("*.speclines.ms")
  
  assert len(myvis) == 12
  
  default('virtualconcat')
  virtualconcat(vis=myvis, concatvis='16B-242_lines_all.ms',
                keepcopy=False)
  
  default('split')
  split(vis='16B-242_lines_all.ms', outputvis='16B-242_lines.ms',
        field='M33*',
        datacolumn='corrected',
        keepflags=False)
  
  os.system("rm -r 16B-242_lines_all.ms")
  
new_contents: 
  '''
  Combine the tracks, then split out the science fields
  '''
  
  import os
  from glob import glob
  
  from tasks import virtualconcat, split
  
  # Grab all of the MS tracks in the folder (should be 12)
  myvis = glob("16B-242.*.ms")
  
  assert len(myvis) == 12
  
  default('virtualconcat')
  virtualconcat(vis=myvis, concatvis='16B-242_lines_all.ms',
                keepcopy=False)
  
  default('split')
  split(vis='16B-242_lines_all.ms', outputvis='16B-242_lines.ms',
        field='M33*',
        datacolumn='corrected',
        keepflags=False)
  
  os.system("rm -r 16B-242_lines_all.ms")
  
subject: Change glob for 242 tracks