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: 1 day ago
TLE from 1 day ago
0 COSMOS 2553
1 51511U 22011A 26308.50602196 -.00000025 00000-0 27540-3 0 9996
2 51511 67.0895 157.9133 0004074 270.3568 89.6908 11.32845117196330Epoch: 2026-11-04T12:08Z
TLE epoch observation values (Epoch: 2026-11-04T12:08:40.297Z)
Latitude
-0.00001°
Longitude
-68.00797°
Altitude
1,998.098 km
Speed
6.9 km/s
True Right ascension
10h 31m 39s
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
15:21:07
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
1,998.267 km
Perigee altitude
1,991.445 km
Semi-major axis
8,372.993 km
Eccentricity
0.00041
Inclination
67.0895°
RAAN
157.9133°
Arg. of periapsis
270.3568°
True anomaly
89.73748°
Mean anomaly
89.6908°
Eccentric anomaly
89.71414°
Mean motion
2.83284 °/min
Orbital period
127.08 mins
BSTAR
0.0002754
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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. |
|---|---|---|---|---|---|---|---|
| 12 mins | 2026-11-05 20:21:27.101Z | 327.011° NNW | 2026-11-05 20:27:27.101Z | 359.787° N | 15.673° | 2026-11-05 20:33:27.101Z | 33.101° NE |
| 17 mins | 2026-11-05 22:36:27.101Z | 344.068° N | 2026-11-05 22:44:27.101Z | 34.722° NE | 29.371° | 2026-11-05 22:53:27.101Z | 91.481° ESE |
| 21 mins | 2026-11-06 00:47:27.101Z | 331.3° NNW | 2026-11-06 00:57:27.101Z | 348.891° N | 85.858° | 2026-11-06 01:08:27.101Z | 153.681° SSE |
| 13 mins | 2026-11-06 03:01:27.101Z | 299.937° NW | 2026-11-06 03:07:27.101Z | 263.533° W | 22.016° | 2026-11-06 03:14:27.101Z | 222.083° SW |
| 9 mins | 2026-11-06 13:01:27.101Z | 115.571° SE | 2026-11-06 13:05:27.101Z | 93.094° ESE | 14.782° | 2026-11-06 13:10:27.101Z | 65.72° ENE |
| 21 mins | 2026-11-06 15:04:27.101Z | 194.255° SSW | 2026-11-06 15:14:27.101Z | 118.601° SE | 73.403° | 2026-11-06 15:25:27.101Z | 32.108° NE |
| 18 mins | 2026-11-06 17:18:27.101Z | 259.098° W | 2026-11-06 17:27:27.101Z | 322.334° NNW | 35.781° | 2026-11-06 17:36:27.101Z | 19.241° NNE |
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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