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: 4 days ago
TLE from 4 days ago
0 COSMOS 2553
1 51511U 22011A 25339.08852375 -.00000038 00000-0 -89934-4 0 9999
2 51511 67.0934 297.7848 0003644 268.8995 91.1531 11.32845084158452Epoch: 2025-12-05T02:07Z
TLE epoch observation values (Epoch: 2025-12-05T02:07:28.452Z)
Latitude
0.00006°
Longitude
-168.21936°
Altitude
1,998.178 km
Speed
6.9 km/s
True Right ascension
19h 51m 08s
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
17:23:17
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
1,997.907 km
Perigee altitude
1,991.804 km
Semi-major axis
8,372.993 km
Eccentricity
0.00036
Inclination
67.0934°
RAAN
297.7848°
Arg. of periapsis
268.8995°
True anomaly
91.19485°
Mean anomaly
91.1531°
Eccentric anomaly
91.17397°
Mean motion
2.83284 °/min
Orbital period
127.08 mins
BSTAR
-0.000089934
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Other satellites on launch #11 in the year 2022 (2022-02-05 UTC)
No other RSOs were in this launch
Did you know?
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. |
|---|---|---|---|---|---|---|---|
| 20 mins | 2025-12-08 21:17:35.444Z | 172.315° S | 2025-12-08 21:27:35.444Z | 107.89° ESE | 35.064° | 2025-12-08 21:37:35.444Z | 40.296° NE |
| 20 mins | 2025-12-08 23:29:35.444Z | 235.118° WSW | 2025-12-08 23:38:35.444Z | 303.132° NW | 39.021° | 2025-12-08 23:49:35.444Z | 23.435° NE |
| 13 mins | 2025-12-09 01:47:35.444Z | 301.144° NW | 2025-12-09 01:53:35.444Z | 336.796° NNW | 18.79° | 2025-12-09 02:00:35.444Z | 17.709° NNE |
| 12 mins | 2025-12-09 04:05:35.444Z | 341.318° N | 2025-12-09 04:11:35.444Z | 15.739° NNE | 16.894° | 2025-12-09 04:17:35.444Z | 50.176° ENE |
| 20 mins | 2025-12-09 06:17:35.444Z | 340.214° N | 2025-12-09 06:27:35.444Z | 52.524° ENE | 34.833° | 2025-12-09 06:37:35.444Z | 117.17° SE |
| 20 mins | 2025-12-09 08:29:35.444Z | 322.265° NNW | 2025-12-09 08:38:35.444Z | 256.438° W | 40.067° | 2025-12-09 08:49:35.444Z | 176.52° S |
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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