OPS 1439 (Heavy Ferret / Program 770 ELINT), a U.S. NRO Agena-based signals-intelligence satellite. Thor SLV-2A Agena-D from Vandenberg lofted it on 9 February 1966 into LEO for Cold War electronic reconnaissance of Soviet radars.
- Outcome
- Success
- Orbit
- LEO
- Low Earth orbit
- Payload to orbit
- 600 kg (est.)
- Flight
- 47th
- of 61 Thor SLV-2A Agena D flights
- Date and time
- 9 February 1966, 19:45 UTC
- Rocket
- Thor SLV-2A Agena D
- Builder
- McDonnell Douglas
- Launch site
- Space Launch Complex 2W, Vandenberg SFB, CA, USA
- Payload
- Government/Top Secret
- International designator
- 1966-009
- Launches in 1966
- 10th of 131
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