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.
Focus sentinelFocus sentinel
Request partner network tasking
Focus sentinelFocus sentinel
Embed this page
Focus sentinelFocus sentinel
51511 intel report (Beta)
Focus sentinelFocus sentinel
Edit Public Description
Focus sentinelFocus sentinel
Edit Sat Name
Focus sentinelFocus sentinel
Create New Watchlist
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: 3 hours ago
TLE from 3 hours ago
0 COSMOS 2553
1 51511U 22011A 26177.75822153 -.00000044 00000-0 -25582-3 0 9990
2 51511 67.0942 353.3474 0003950 273.0458 87.0033 11.32844868181521Epoch: 2026-06-26T18:11Z
TLE epoch observation values (Epoch: 2026-06-26T18:11:50.340Z)
Latitude
0.00001°
Longitude
165.50552°
Altitude
1,997.945 km
Speed
6.9 km/s
True Right ascension
23h 33m 23s
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
08:58:17
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
1,998.164 km
Perigee altitude
1,991.549 km
Semi-major axis
8,372.994 km
Eccentricity
0.0004
Inclination
67.0942°
RAAN
353.3474°
Arg. of periapsis
273.0458°
True anomaly
87.0485°
Mean anomaly
87.0033°
Eccentric anomaly
87.0259°
Mean motion
2.83284 °/min
Orbital period
127.08 mins
BSTAR
-0.00025582
Loading maneuver chart data...
Computing Atmospheric mass density...
Loading historical data...
Loading historical data...
Loading historical data...
Loading historical data...
Loading historical data...
Loading historical data...
Loading historical data...
Other satellites on launch #11 in the year 2022 (2022-02-05 UTC)
No other RSOs were in this launch
Did you know?
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
Loading observer location...
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. |
|---|---|---|---|---|---|---|---|
| 22 mins | 2026-06-26 23:03:40.333Z | 327.83° NNW | 2026-06-26 23:14:40.333Z | 251.261° W | 43.645° | 2026-06-26 23:25:40.333Z | 165.782° S |
| 8 mins | 2026-06-27 01:20:40.333Z | 285.316° WNW | 2026-06-27 01:23:40.333Z | 268.4° W | 13.975° | 2026-06-27 01:28:40.333Z | 240.875° WSW |
| 14 mins | 2026-06-27 11:15:40.333Z | 135.109° SSE | 2026-06-27 11:21:40.333Z | 98.643° ESE | 20.777° | 2026-06-27 11:29:40.333Z | 52.691° ENE |
| 21 mins | 2026-06-27 13:21:40.333Z | 206.934° SW | 2026-06-27 13:31:40.333Z | 311.153° NW | 44.984° | 2026-06-27 13:42:40.333Z | 28.824° NE |
| 17 mins | 2026-06-27 15:36:40.333Z | 271.473° WNW | 2026-06-27 15:44:40.333Z | 322.752° NNW | 25.955° | 2026-06-27 15:53:40.333Z | 18.673° NNE |
| 11 mins | 2026-06-27 17:56:40.333Z | 330.385° NNW | 2026-06-27 18:01:40.333Z | 358.488° N | 15.092° | 2026-06-27 18:07:40.333Z | 31.764° NE |
| 17 mins | 2026-06-27 20:10:40.333Z | 343.345° N | 2026-06-27 20:18:40.333Z | 33.051° NE | 25.158° | 2026-06-27 20:27:40.333Z | 89.011° E |
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 |
|---|
CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings
Authenticating...
Click to sort rows by Secondary header in ascending order | Click to sort rows by Secondary name header in ascending order | Click to sort rows by Country header in ascending order | Click to sort rows by Owner header in ascending order | Click to sort rows by Obj. Type header in ascending order | Click to sort rows by Miss dist. header in ascending order | Click to sort rows by Rel. speed header in ascending order | Click to sort rows by Apr. angle header in ascending order | Click to sort rows by TCA header in descending order |
|---|