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 26039.50651711 -.00000028 00000-0 19842-3 0 9993
2 51511 67.0895 199.9992 0003605 272.3544 87.6986 11.32846041165869Epoch: 2026-02-08T12:09Z
TLE epoch observation values (Epoch: 2026-02-08T12:09:23.078Z)
Latitude
-0.00001°
Longitude
-120.96167°
Altitude
1,997.99 km
Speed
6.9 km/s
True Right ascension
13h 19m 59s
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
20:44:41
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
1,997.87 km
Perigee altitude
1,991.833 km
Semi-major axis
8,372.988 km
Eccentricity
0.00036
Inclination
67.0895°
RAAN
199.9992°
Arg. of periapsis
272.3544°
True anomaly
87.73988°
Mean anomaly
87.6986°
Eccentric anomaly
87.71924°
Mean motion
2.83284 °/min
Orbital period
127.08 mins
BSTAR
0.00019842
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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. |
|---|---|---|---|---|---|---|---|
| 17 mins | 2026-02-08 19:03:40.093Z | 342.773° N | 2026-02-08 19:11:40.093Z | 31.663° NE | 24.224° | 2026-02-08 19:20:40.093Z | 86.614° E |
| 21 mins | 2026-02-08 21:15:40.093Z | 333.356° NNW | 2026-02-08 21:25:40.093Z | 77.567° E | 44.557° | 2026-02-08 21:36:40.093Z | 148.292° SSE |
| 15 mins | 2026-02-08 23:28:40.093Z | 303.915° NW | 2026-02-08 23:35:40.093Z | 259.232° W | 23.675° | 2026-02-08 23:43:40.093Z | 212.078° SW |
| 4 mins | 2026-02-09 09:31:40.093Z | 101.012° ESE | 2026-02-09 09:33:40.093Z | 90.19° ESE | 11.323° | 2026-02-09 09:35:40.093Z | 79.436° E |
| 20 mins | 2026-02-09 11:32:40.093Z | 187.698° SSW | 2026-02-09 11:42:40.093Z | 102.928° ESE | 42.131° | 2026-02-09 11:52:40.093Z | 34.345° NE |
| 19 mins | 2026-02-09 13:45:40.093Z | 252.993° W | 2026-02-09 13:54:40.093Z | 318.234° NNW | 32.614° | 2026-02-09 14:04:40.093Z | 21.611° NNE |
| 12 mins | 2026-02-09 16:04:40.093Z | 315.445° NNW | 2026-02-09 16:10:40.093Z | 349.768° N | 16.155° | 2026-02-09 16:16:40.093Z | 23.203° NE |
| 8 mins | 2026-02-09 18:21:40.093Z | 346.441° N | 2026-02-09 18:27:40.093Z | 22.464° NNE | 20.015° | 2026-02-09 18:29:40.093Z | 36.111° NE |
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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