Agena spacecraft being prepared for launch in August 1961. This mission carried both a TAKI payload for intercepting Soviet TALL KING air surveillance radar emissions and a SOCTOP payload for determining if the vehicle was being tracked or the Soviets were attempting to take control of it. The payloads may have been mounted under the gray box structure on the aft rack of the Agena. The CORONA photo-reconnaissance payload has not yet been attached to the front of the Agena. (credit: Peter Hunter)
They are doing the work outside, this I can see and understand.
I see a door frame and a large door to the left. Why is there a door frame and no building?
Or is it a convertible building? The sides can go up in a few minutes?
Ping for later.