CLASSIFIED
COSMOS 2523
Russian Military Satellite (Undisclosed) · Russian Ministry of Defence
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Cosmos 2523, a Russian military satellite whose specific mission has never been officially disclosed, continuing the country's decades-long practice of using generic Cosmos numbering to obscure operational details of its military space capabilities.
Its orbit
- Orbit
- Low Earth Orbitcan appear as a fast-moving star at dawn or dusk
- Altitude
- 335–391 mi (539–630 km)
- Inclination
- 97.5°
- One orbit
- 96.2 minutes15.0 orbits a day
- NORAD ID
- 42986
- Int’l designator
- 2017-037E
- Launched
- 2017
Orbital elements from CelesTrak, as of 23 Sep 2026.
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