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: 6 hours ago
TLE from 6 hours ago
0 COSMOS 2553
1 51511U 22011A 25344.47381413 -.00000012 00000-0 63584-3 0 9991
2 51511 67.0936 289.7347 0003626 269.3106 90.7422 11.32845168159064Epoch: 2025-12-10T11:22Z
TLE epoch observation values (Epoch: 2025-12-10T11:22:17.540Z)
Latitude
0.00003°
Longitude
39.718°
Altitude
1,998.155 km
Speed
6.9 km/s
True Right ascension
19h 18m 56s
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
16:03:51
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
1,997.891 km
Perigee altitude
1,991.819 km
Semi-major axis
8,372.992 km
Eccentricity
0.00036
Inclination
67.0936°
RAAN
289.7347°
Arg. of periapsis
269.3106°
True anomaly
90.78375°
Mean anomaly
90.7422°
Eccentric anomaly
90.76297°
Mean motion
2.83284 °/min
Orbital period
127.08 mins
BSTAR
0.00063584
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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 | 2025-12-10 19:57:30.155Z | 132.093° SE | 2025-12-10 20:03:30.155Z | 97.431° ESE | 18.492° | 2025-12-10 20:10:30.155Z | 57.429° ENE |
| 21 mins | 2025-12-10 22:03:30.155Z | 202.487° SSW | 2025-12-10 22:13:30.155Z | 88.168° E | 44.886° | 2025-12-10 22:24:30.155Z | 29.906° NE |
| 18 mins | 2025-12-11 00:17:30.155Z | 265.666° W | 2025-12-11 00:26:30.155Z | 324.438° NNW | 27.38° | 2025-12-11 00:35:30.155Z | 19.608° NNE |
| 10 mins | 2025-12-11 02:38:30.155Z | 330.996° NNW | 2025-12-11 02:42:30.155Z | 353.734° N | 15.14° | 2025-12-11 02:48:30.155Z | 27.462° NE |
| 16 mins | 2025-12-11 04:52:30.155Z | 344.407° N | 2025-12-11 05:00:30.155Z | 34.601° NE | 23.831° | 2025-12-11 05:08:30.155Z | 83.449° E |
| 21 mins | 2025-12-11 07:03:30.155Z | 333.256° NNW | 2025-12-11 07:13:30.155Z | 40.277° NE | 44.347° | 2025-12-11 07:24:30.155Z | 146.68° SSE |
| 16 mins | 2025-12-11 09:16:30.155Z | 307.042° NW | 2025-12-11 09:23:30.155Z | 264.182° W | 24.355° | 2025-12-11 09:32:30.155Z | 209.862° 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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