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: 8 hours ago
TLE from 8 hours ago
0 COSMOS 2553
1 51511U 22011A 26307.62318748 -.00000037 00000-0 -64230-4 0 9997
2 51511 67.0896 159.2330 0004075 270.3455 89.7021 11.32845120196231Epoch: 2026-11-03T14:57Z
TLE epoch observation values (Epoch: 2026-11-03T14:57:23.398Z)
Latitude
0°
Longitude
-107.99769°
Altitude
1,998.098 km
Speed
6.9 km/s
True Right ascension
10h 36m 55s
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
18:41:42
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
1,998.268 km
Perigee altitude
1,991.444 km
Semi-major axis
8,372.993 km
Eccentricity
0.00041
Inclination
67.0896°
RAAN
159.233°
Arg. of periapsis
270.3455°
True anomaly
89.7488°
Mean anomaly
89.7021°
Eccentric anomaly
89.72545°
Mean motion
2.83284 °/min
Orbital period
127.08 mins
BSTAR
-0.00006423
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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 | 2026-11-04 00:00:21.373Z | 336.476° NNW | 2026-11-04 00:11:21.373Z | 50.889° ENE | 50.44° | 2026-11-04 00:21:21.373Z | 122.8° SE |
| 19 mins | 2026-11-04 02:13:21.373Z | 319.734° NNW | 2026-11-04 02:22:21.373Z | 257.268° W | 48.801° | 2026-11-04 02:32:21.373Z | 185.115° SSW |
| 18 mins | 2026-11-04 14:20:21.373Z | 161.468° S | 2026-11-04 14:29:21.373Z | 102.073° ESE | 36.664° | 2026-11-04 14:38:21.373Z | 44.416° NE |
| 20 mins | 2026-11-04 16:30:21.373Z | 226.3° WSW | 2026-11-04 16:40:21.373Z | 314.214° NW | 62.836° | 2026-11-04 16:50:21.373Z | 24.043° NE |
| 15 mins | 2026-11-04 18:47:21.373Z | 291.42° WNW | 2026-11-04 18:54:21.373Z | 333.76° NNW | 22.131° | 2026-11-04 19:02:21.373Z | 19.967° NNE |
| 12 mins | 2026-11-04 21:06:21.373Z | 338.825° N | 2026-11-04 21:12:21.373Z | 12.898° NNE | 16.575° | 2026-11-04 21:18:21.373Z | 46.054° ENE |
Co-orbital & Co-planar RSOs
Thresholds — Semi-major Axis: ±100 km, RAAN: ±3°, Inclination: ±5°
TCA is derived from TLE conjunctions
Click to sort rows by RSO header in ascending order | Click to sort rows by Country header in ascending order | Click to sort rows by Type header in ascending order | Click to sort rows by Inclination Δ header in ascending order | Click to sort rows by RAAN Δ header in ascending order | Click to sort rows by Coplanar Angle header in ascending order | Click to sort rows by SMA Δ header in ascending order | Click to sort rows by Orbital period header in ascending order | Click to sort rows by <5km Md TCA header in descending order |
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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings
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