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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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: 18 hours ago
TLE from 18 hours ago
0 COSMOS 2553
1 51511U 22011A 26092.82963416 -.00000032 00000-0 91071-4 0 9995
2 51511 67.0886 120.2980 0004018 274.1678 85.8805 11.32847285171903Epoch: 2026-04-02T19:54Z
TLE epoch observation values (Epoch: 2026-04-02T19:54:40.391Z)
Latitude
-0.00007°
Longitude
-9.54282°
Altitude
1,997.863 km
Speed
6.9 km/s
True Right ascension
08h 01m 11s
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
19:13:01
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
1,998.209 km
Perigee altitude
1,991.481 km
Semi-major axis
8,372.982 km
Eccentricity
0.0004
Inclination
67.0886°
RAAN
120.298°
Arg. of periapsis
274.1678°
True anomaly
85.92643°
Mean anomaly
85.8805°
Eccentric anomaly
85.90346°
Mean motion
2.83285 °/min
Orbital period
127.08 mins
BSTAR
0.000091071
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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. |
|---|---|---|---|---|---|---|---|
| 21 mins | 2026-04-03 13:30:56.210Z | 322.847° NNW | 2026-04-03 13:40:56.210Z | 254.003° W | 39.073° | 2026-04-03 13:51:56.210Z | 178.574° S |
| 17 mins | 2026-04-04 01:39:56.210Z | 153.591° SSE | 2026-04-04 01:47:56.210Z | 100.315° ESE | 28.207° | 2026-04-04 01:56:56.210Z | 45.493° ENE |
| 21 mins | 2026-04-04 03:47:56.210Z | 220.453° SW | 2026-04-04 03:57:56.210Z | 293.678° NW | 43.018° | 2026-04-04 04:08:56.210Z | 25.471° NE |
| 15 mins | 2026-04-04 06:04:56.210Z | 285.881° WNW | 2026-04-04 06:11:56.210Z | 328.361° NNW | 21.838° | 2026-04-04 06:19:56.210Z | 16.925° NNE |
| 11 mins | 2026-04-04 08:24:56.210Z | 339.86° N | 2026-04-04 08:29:56.210Z | 8.463° NNE | 15.531° | 2026-04-04 08:35:56.210Z | 41.755° NE |
| 18 mins | 2026-04-04 10:37:56.210Z | 344.71° N | 2026-04-04 10:45:56.210Z | 38.838° NE | 29.901° | 2026-04-04 10:55:56.210Z | 103.83° ESE |
| 21 mins | 2026-04-04 12:48:56.210Z | 327.584° NNW | 2026-04-04 12:58:56.210Z | 235.845° WSW | 43.995° | 2026-04-04 13:09:56.210Z | 163.852° 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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