Kosmos 637 (Raduga-GVM #1), the first Soviet geosynchronous satellite—a mass/systems mockup for the Statsionar/Raduga military communications series. Maiden Proton-K/Blok-DM flight from Baikonur LC-81/23 on 26 March 1974 placed the craft in GEO.
- Outcome
- Success
- Orbit
- Direct-GEO
- Geostationary orbit
- Payload to orbit
- 2.8 T
- Flight
- 1st
- of 66 Proton-K/DM flights
- Date and time
- 26 March 1974, 13:35 UTC
- Rocket
- Proton-K/DM
- Builder
- Khrunichev
- Launch site
- 81/23 (81L), Baikonur Cosmodrome, Republic of Kazakhstan
- Payload
- Test Flight
- International designator
- 1974-017
- Launches in 1974
- 18th of 113
See it in orbit
Space Atlas shows the satellites and rocket stages from this launch in 3D.
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