I have attached 3 images of the hoist of Agena 1007 in April/May 1960
for the flight of Midas II. What is the large "solar panel likeness" attachment on the aft end for 1st and 2nd images?
Note 3rd image shows no solar panel - camera angle moved to right
of 1st image. Panel has "rotated" out of sight it appears but note in
1st image a curtain is drawn across 2nd gantry level so this might be
two different hoistings.
Without data you need multiple images to reveal the "facts".