Beschreibung : The KH-3 payload consisted of the further improved C``` (Corona triple-prime) single panoramic camera and a single General Electric return vehicle (SRV, Satellite Return Vehicle). The C```-camera was built by Itek Corporation and with a f/3.5 aperture and 61 cm focal length had a ground resolution of 7.5 m.

The satellite was based on the Agena-B upper stage, which provided attitude control in orbit. The film return capsule carried its own small solid-fuel retro motor to deorbit at the end of the mission with mid-air recovery of the returning capsule by a specially equipped aircraft.

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Weltraumereignis :

DISCOVERER 29 · aka CORONA 29, KH 3 (SATELLITE) · THOR AGENA B