If we look at the contour lines (e.g. osm.ch) this place is between 490 and 500 m). So 484 is probably the right one. The ones from the shelter (515;650) may also be right (515) but in another ellipsoid projection (e.g. 650 in LV95).
As I come from time to time for a walk along this place, I'll check next time.