COSMOS 2491 DEB, 57551
Orbit data source: Space-Track
COSMOS 2491 DEB, 57551 is space debris in LEO originally from a launch on Wed, 25 Dec 2013 UTC launched from the Plesetsk Missile And Space Complex (PKMTR). Debris objects in space refer to the collection of defunct objects orbiting the Earth. Examples of debris include non-operational satellites, rocket bodies, and fragments generated from explosions, collisions, or faulty payload assembly.
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57551 intel report (Beta)
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Identifier
Orbit
Country
CISRelated business
Manufacturer
TsNIIKhM
Mission
Spacecraft
Bus & Motor
Unknown
Mass
Unknown
Launch date (UTC)
Launch vehicle
Unknown
Launch site
Object type
Shape & HBR
Unknown shape, 0.1 m
Radar Cross Section
Small (<0.1 m²)
Expand to show TLE details & historyLast TLE update: 1 month ago
TLE from 1 month ago
0 COSMOS 2491 DEB
1 57551U 13076AN 26111.95326265 .00001865 00000-0 11401-1 0 9997
2 57551 82.4300 196.0778 0126761 151.5550 209.2531 12.52909790134739Epoch: 2026-04-21T22:52Z
TLE epoch observation values (Epoch: 2026-04-21T22:52:41.892Z)
Latitude
-0.00009°
Longitude
2.88159°
Altitude
1,541.973 km
Speed
7.056 km/s
True Right ascension
13h 04m 18s
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
04:16:28
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
1,548.913 km
Perigee altitude
1,350.46 km
Semi-major axis
7,827.824 km
Eccentricity
0.01268
Inclination
82.43°
RAAN
196.0778°
Arg. of periapsis
151.555°
True anomaly
208.55297°
Mean anomaly
209.2531°
Eccentric anomaly
208.90208°
Mean motion
3.13387 °/min
Orbital period
114.87 mins
BSTAR
0.011401
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Other satellites on launch #76 in the year 2013 (2013-12-25 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 2491 DEB 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. |
|---|---|---|---|---|---|---|---|
| 13 mins | 2026-06-01 00:59:50.630Z | 147.126° SSE | 2026-06-01 01:06:50.630Z | 80.662° E | 30.553° | 2026-06-01 01:12:50.630Z | 26.677° NE |
| 13 mins | 2026-06-01 02:55:50.630Z | 219.794° SW | 2026-06-01 03:01:50.630Z | 279.805° WNW | 34.288° | 2026-06-01 03:08:50.630Z | 352.6° N |
| 8 mins | 2026-06-01 11:06:50.630Z | 35.346° NE | 2026-06-01 11:09:50.630Z | 58.505° ENE | 14.921° | 2026-06-01 11:14:50.630Z | 95.697° ESE |
| 15 mins | 2026-06-01 13:00:50.630Z | 355.019° N | 2026-06-01 13:07:50.630Z | 122.014° SE | 44.523° | 2026-06-01 13:15:50.630Z | 170.424° S |
| 8 mins | 2026-06-01 14:58:50.630Z | 308.928° NW | 2026-06-01 15:01:50.630Z | 284.412° WNW | 17.777° | 2026-06-01 15:06:50.630Z | 245.145° WSW |
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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