Kosmos 504 through 511 (Strela-1M #25–#32), an octuple cluster of Soviet military store-and-forward communications microsatellites. Kosmos-3M (11K65M) from Plesetsk Site 132/2 deployed all eight in LEO on 20 July 1972 for low-data-rate message relay.
- Outcome
- Success
- Orbit
- LEO
- Low Earth orbit
- Payload to orbit
- 480 kg
- Flight
- 57th
- of 445 Kosmos-3M (11K65M) flights
- Date and time
- 20 July 1972, 18:10 UTC
- Rocket
- Kosmos-3M (11K65M)
- Builder
- Polyot
- Launch site
- 132/2, Plesetsk Cosmodrome, Russian Federation
- Payload
- Government/Top Secret
- International designator
- 1972-057
- Launches in 1972
- 60th of 113
See it in orbit
Space Atlas shows the satellites and rocket stages from this launch in 3D.
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