AFP-827 (Canyon-4)

Launch Failure

Liftoff Time (GMT)

22:33:00

Saturday December 4, 1971

Watch Replay

Official Livestream

Mission Details

Launch Notes

Sustainer shut down due to gas generator failure. RSO destroyed the rocket at T+62 seconds.

AFP-827 (Canyon-4)

Wiki

Canyon was a series of seven United States spy satellites launched between 1968 and 1977. Also known by its program number AFP-827, the satellites were developed with the participation of the Air Force. The Canyon project is credited as the first American satellite system tasked for COMINT.

Geostationary Transfer Orbit

1 Payload

700 kilograms

Rocket

Retired
Atlas-SLV3A Agena-D

Active 1968 to 1978


Stages

2

Launch Site

LC-13

Cape Canaveral SFS, Florida, USA

Fastest Turnaround

73 days 13 hours

Stats

Atlas-Agena


102nd

Mission

1st

Mission of 1971

1971


118th

Orbital launch attempt