Proton-K/DM from Baikonur lofted Kosmos 1546, a US-KS (Oko-S) missile early-warning satellite placed in geostationary orbit for the Soviet military's missile-defense network.
- Outcome
- Success
- Orbit
- Direct-GEO
- Geostationary orbit
- Payload to orbit
- 2.1 T (est.)
- Flight
- 45th
- of 66 Proton-K/DM flights
- Date and time
- 29 March 1984, 05:52 UTC
- Rocket
- Proton-K/DM
- Builder
- Khrunichev
- Launch site
- 200/40, Baikonur Cosmodrome, Republic of Kazakhstan
- Payload
- Government/Top Secret
- International designator
- 1984-031
- Launches in 1984
- 31st of 129
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