COSMOS 2553, 51511
Orbit data source: Space-Track
COSMOS 2553, 51511 is a payload satellite owned by VVKO VKS (CIS) in LEO that was launched on Sat, 05 Feb 2022 UTC via a SOYUZ-2-1A launch vehicle from the Plesetsk Missile And Space Complex (PKMTR). Payload-class satellites include a variety of spacecraft equipped with specific instruments for various scientific and technological missions. These include communications satellites like Starlink; space stations such as the ISS; scientific satellites like the Hubble; Earth observation satellites from companies like Planet Labs, Umbra, and HawkEye 360; GPS; miniature CubeSats for education and research; and military/defense satellites.
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51511 intel report (Beta)
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Edit Public Description
Identifier
Orbit
Country
CISRelated business
Manufacturer
Resehetnev ISS
Mission
Non-operational Defense Radar Imaging
Bus & Motor
MERIDIAN?, Unknown motor
Mass
~2,000 kg wet, ~2,000 kg dry
Launch date (UTC)
Launch vehicle
Launch site
Object type
Shape & HBR
Box + 2 Pan, 5.0 m
Radar Cross Section
14.304 m², Large (>1 m²)
Expand to show TLE details & historyLast TLE update: 5 hours ago
TLE from 5 hours ago
0 COSMOS 2553
1 51511U 22011A 25300.50864772 -.00000033 00000-0 56505-4 0 9990
2 51511 67.0957 355.4559 0003685 266.9756 93.0765 11.32844496154088Epoch: 2025-10-27T12:12Z
TLE epoch observation values (Epoch: 2025-10-27T12:12:27.163Z)
Latitude
-0.00006°
Longitude
136.23322°
Altitude
1,998.285 km
Speed
6.9 km/s
True Right ascension
23h 41m 49s
True Declination
0° 00' 00"
Sunlit
Visualization orbit readout
Latitude
Unknown
Longitude
Unknown
Altitude
Unknown
Speed
Unknown
Apparent Right ascension
Unknown
Apparent Declination
Unknown
Sunlit
Visualization observer readout
Local Sidereal Time
13:02:16
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
1,997.944 km
Perigee altitude
1,991.773 km
Semi-major axis
8,372.995 km
Eccentricity
0.00037
Inclination
67.0957°
RAAN
355.4559°
Arg. of periapsis
266.9756°
True anomaly
93.11867°
Mean anomaly
93.0765°
Eccentric anomaly
93.09758°
Mean motion
2.83284 °/min
Orbital period
127.08 mins
BSTAR
0.000056505
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Other satellites on launch #11 in the year 2022 (2022-02-05 UTC)
No other RSOs were in this launch
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You can import UDL-sourced sensor .json files into the Sandbox to generate a visibility chart that accounts for multi-vendor sensor geometry.COSMOS 2553 Visibility forecast
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Span | Click to sort rows by Start time (UTC) header in descending order | Start Az. | Max El. time (UTC) | Max El. Az. | Max El. | End time (UTC) | End Az. |
|---|---|---|---|---|---|---|---|
| 13 mins | 2025-10-28 03:08:25.681Z | 134.063° SE | 2025-10-28 03:15:25.681Z | 94.533° ESE | 17.982° | 2025-10-28 03:21:25.681Z | 60.191° ENE |
| 21 mins | 2025-10-28 05:14:25.681Z | 201.574° SSW | 2025-10-28 05:24:25.681Z | 149.43° SSE | 44.773° | 2025-10-28 05:35:25.681Z | 30.174° NE |
| 17 mins | 2025-10-28 07:29:25.681Z | 266.744° W | 2025-10-28 07:37:25.681Z | 319.574° NNW | 27.755° | 2025-10-28 07:46:25.681Z | 17.713° NNE |
| 11 mins | 2025-10-28 09:49:25.681Z | 328.064° NNW | 2025-10-28 09:54:25.681Z | 356.438° N | 15.203° | 2025-10-28 10:00:25.681Z | 29.533° NE |
| 16 mins | 2025-10-28 12:04:25.681Z | 346.431° N | 2025-10-28 12:11:25.681Z | 30.363° NE | 23.518° | 2025-10-28 12:20:25.681Z | 84.679° E |
| 21 mins | 2025-10-28 14:15:25.681Z | 333.928° NNW | 2025-10-28 14:25:25.681Z | 64.149° ENE | 44.267° | 2025-10-28 14:36:25.681Z | 146.035° SSE |
| 15 mins | 2025-10-28 16:28:25.681Z | 305.595° NW | 2025-10-28 16:35:25.681Z | 260.697° W | 24.946° | 2025-10-28 16:43:25.681Z | 211.238° SW |
Co-orbital & Co-planar RSOs
Thresholds — Semi-major Axis: ±100 km, RAAN: ±3°, Inclination: ±5°
TCA is derived from TLE conjunctions
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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings
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