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: 4 days ago
TLE from 4 days ago
0 COSMOS 2553
1 51511U 22011A 26155.15765818 -.00000048 00000-0 -34865-3 0 9992
2 51511 67.0946 27.1310 0003939 273.8642 86.1851 11.32845228178963Epoch: 2026-06-04T03:47Z
TLE epoch observation values (Epoch: 2026-06-04T03:47:01.666Z)
Latitude
0.00002°
Longitude
77.76812°
Altitude
1,997.896 km
Speed
6.9 km/s
True Right ascension
01h 48m 31s
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
12:26:11
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
1,998.153 km
Perigee altitude
1,991.557 km
Semi-major axis
8,372.992 km
Eccentricity
0.00039
Inclination
67.0946°
RAAN
27.131°
Arg. of periapsis
273.8642°
True anomaly
86.23014°
Mean anomaly
86.1851°
Eccentric anomaly
86.20762°
Mean motion
2.83284 °/min
Orbital period
127.08 mins
BSTAR
-0.00034865
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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. |
|---|---|---|---|---|---|---|---|
| 15 mins | 2026-06-08 03:50:41.930Z | 306.796° NW | 2026-06-08 03:58:41.930Z | 258.624° W | 22.272° | 2026-06-08 04:05:41.930Z | 217.237° SW |
| 6 mins | 2026-06-08 13:53:41.930Z | 106.211° ESE | 2026-06-08 13:56:41.930Z | 89.592° E | 12.541° | 2026-06-08 13:59:41.930Z | 73.322° E |
| 20 mins | 2026-06-08 15:55:41.930Z | 190.163° SSW | 2026-06-08 16:05:41.930Z | 98.766° ESE | 42.831° | 2026-06-08 16:15:41.930Z | 33.434° NE |
| 19 mins | 2026-06-08 18:08:41.930Z | 255.249° W | 2026-06-08 18:17:41.930Z | 318.991° NNW | 31.645° | 2026-06-08 18:27:41.930Z | 21.614° NNE |
| 11 mins | 2026-06-08 20:28:41.930Z | 321.311° NNW | 2026-06-08 20:33:41.930Z | 350.205° N | 15.905° | 2026-06-08 20:39:41.930Z | 23.708° NE |
| 14 mins | 2026-06-08 22:44:41.930Z | 346.729° N | 2026-06-08 22:51:41.930Z | 29.915° NE | 20.62° | 2026-06-08 22:58:41.930Z | 71.067° E |
| 21 mins | 2026-06-09 00:55:41.930Z | 336.725° NNW | 2026-06-09 01:05:41.930Z | 58.225° ENE | 41.793° | 2026-06-09 01:16:41.930Z | 136.155° SSE |
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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