COSMOS 2550, 48865
Orbit data source: Space-Track
COSMOS 2550, 48865 is a payload satellite owned by VVKO VKS (CIS) in LEO that was launched on Fri, 25 Jun 2021 UTC via a SOYUZ-2-1B 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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48865 intel report (Beta)
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Identifier
Orbit
Country
CISRelated business
Manufacturer
TSSKBP/ARSLO
Mission
Operational Defense Sigint
Bus & Motor
PION-NKS, Unknown motor
Mass
7,231 kg wet, ~6,700 kg dry
Launch date (UTC)
Launch vehicle
Launch site
Object type
Shape & HBR
Cyl + 2 Pan, 4.3 m
Radar Cross Section
24.037 m², Large (>1 m²)
Expand to show TLE details & historyLast TLE update: 7 hours ago
TLE from 7 hours ago
0 COSMOS 2550
1 48865U 21056A 26296.93944713 .00004554 00000-0 14413-3 0 9994
2 48865 67.1424 70.4279 0008375 270.0744 89.9451 15.33836075298469Epoch: 2026-10-23T22:32Z
TLE epoch observation values (Epoch: 2026-10-23T22:32:48.232Z)
Latitude
0.00003°
Longitude
59.87415°
Altitude
466.623 km
Speed
7.633 km/s
True Right ascension
04h 41m 42s
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
00:22:57
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
468.352 km
Perigee altitude
456.894 km
Semi-major axis
6,840.76 km
Eccentricity
0.00084
Inclination
67.1424°
RAAN
70.4279°
Arg. of periapsis
270.0744°
True anomaly
90.04107°
Mean anomaly
89.9451°
Eccentric anomaly
89.99309°
Mean motion
3.83607 °/min
Orbital period
93.85 mins
BSTAR
0.00014413
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Other satellites on launch #56 in the year 2021 (2021-06-25 UTC)
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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 2550 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. |
|---|---|---|---|---|---|---|---|
| 5 mins | 2026-10-24 11:13:55.360Z | 241.779° WSW | 2026-10-24 11:15:55.360Z | 290.441° WNW | 37.309° | 2026-10-24 11:18:55.360Z | 8.093° NNE |
| 5 mins | 2026-10-24 19:25:55.360Z | 354.799° N | 2026-10-24 19:27:55.360Z | 42.65° NE | 38.452° | 2026-10-24 19:30:55.360Z | 123.329° SE |
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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