Discoverer 31
Success
SEP 17196121:00:00 UTCA reconnaissance mission on Thor DM-21 / Agena B.
LIFTOFF
SEP 17 196121:00:00 UTC
Success
launched from LC-75-1-1 Vandenberg
aboard Thor DM-21 / Agena B Thor 324 into LEO
Payload
Discoverer 31
Reconnaissance