OPS 4018 (KH-8 Gambit-3 Mission 4339 / KH-8 39), an NRO high-resolution film-return photoreconnaissance satellite. Titan 24B/Agena-D from Vandenberg SLC-4W failed when a stuck Agena fuel valve prevented the upper stage from starting, and the payload burned up.
- Outcome
- Failure
- Orbit
- LEO
- Low Earth orbit
- Payload to orbit
- Did not reach orbit
- Flight
- 8th
- of 23 Titan 24B flights
- Date and time
- 26 June 1973, 17:00 UTC
- Rocket
- Titan 24B
- Builder
- LM
- Launch site
- Space Launch Complex 4W, Vandenberg SFB, CA, USA
- Payload
- Government/Top Secret
- Launches in 1973
- 47th of 116