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: 9 hours ago
TLE from 9 hours ago
0 COSMOS 2553
1 51511U 22011A 26037.47599960 -.00000046 00000-0 -30395-3 0 9991
2 51511 67.0891 203.0345 0003593 272.3039 87.7492 11.32846071165630Epoch: 2026-02-06T11:25Z
TLE epoch observation values (Epoch: 2026-02-06T11:25:26.365Z)
Latitude
-0.00005°
Longitude
-104.93871°
Altitude
1,997.993 km
Speed
6.9 km/s
True Right ascension
13h 32m 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
22:24:12
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
1,997.86 km
Perigee altitude
1,991.843 km
Semi-major axis
8,372.988 km
Eccentricity
0.00036
Inclination
67.0891°
RAAN
203.0345°
Arg. of periapsis
272.3039°
True anomaly
87.79034°
Mean anomaly
87.7492°
Eccentric anomaly
87.76977°
Mean motion
2.83284 °/min
Orbital period
127.08 mins
BSTAR
-0.00030395
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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. |
|---|---|---|---|---|---|---|---|
| 20 mins | 2026-02-06 20:28:46.146Z | 339.023° N | 2026-02-06 20:38:46.146Z | 48.018° ENE | 35.396° | 2026-02-06 20:48:46.146Z | 117.336° SE |
| 20 mins | 2026-02-06 22:40:46.146Z | 322.376° NNW | 2026-02-06 22:50:46.146Z | 244.79° WSW | 39.513° | 2026-02-06 23:00:46.146Z | 178.271° S |
| 16 mins | 2026-02-07 10:49:46.146Z | 150.662° SSE | 2026-02-07 10:56:46.146Z | 104.556° ESE | 27.526° | 2026-02-07 11:05:46.146Z | 47.407° ENE |
| 21 mins | 2026-02-07 12:57:46.146Z | 219.926° SW | 2026-02-07 13:07:46.146Z | 310.305° NW | 43.304° | 2026-02-07 13:18:46.146Z | 26.318° NE |
| 15 mins | 2026-02-07 15:14:46.146Z | 287.801° WNW | 2026-02-07 15:21:46.146Z | 332.24° NNW | 22.149° | 2026-02-07 15:29:46.146Z | 19.169° NNE |
| 11 mins | 2026-02-07 17:33:46.146Z | 337.437° NNW | 2026-02-07 17:38:46.146Z | 5.657° NNE | 15.442° | 2026-02-07 17:44:46.146Z | 39.326° NE |
| 18 mins | 2026-02-07 19:46:46.146Z | 343.125° N | 2026-02-07 19:55:46.146Z | 43.954° NE | 29.477° | 2026-02-07 20:04:46.146Z | 101.49° ESE |
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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