Cosmos 2551
Launch Success
Liftoff Time (GMT)
19:59:47
Thursday September 9, 2021
Watch Replay
Official Livestream
Mission Details
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Launch Notes
Unconfirmed payload.
Cosmos 2551
Cosmos 2551 is an unknown Russian satellite, likely an Earth observation satellite, similar to the EMKA system. The satellite re-entered on October 20, no further information has been released.
Sun-Synchronous Orbit
1 Payload
250 kilograms
Rocket
Manufacturer
RKK EnergiyaRocket
Height: 44.08m
Payload to Orbit
LEO: 2,850 kg
GTO: 0 kg
Liftoff Thrust
1,535 Kilonewtons
Fairing
Diameter: 3m
Height: 8.36m
Stages
3
Launch Site
Stats
Soyuz 2.1v
7th
Mission
1st
Mission of 2021
2021
87th
Orbital launch attempt