CLASSIFIED
COSMOS 2561
Russian Military Satellite (Undisclosed) · Russian Ministry of Defence
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Cosmos 2561, a Russian military satellite whose function has never been officially disclosed — one more entry in a numbering scheme Russia has used since 1962 precisely so that neither the Russian public nor foreign intelligence can infer a satellite's purpose from its name alone.
Its orbit
- Orbit
- Low Earth Orbitcan appear as a fast-moving star at dawn or dusk
- Altitude
- 250–259 mi (402–416 km)
- Inclination
- 96.9°
- One orbit
- 92.6 minutes15.5 orbits a day
- NORAD ID
- 54109
- Int’l designator
- 2022-137A
- Launched
- 2022
Orbital elements from CelesTrak, as of 20 Sep 2026.
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