COSMOS 2491 DEB, 57557
Orbit data source: Space-Track
COSMOS 2491 DEB, 57557 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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57557 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
Medium (>0.1 m² and <1 m²)
Expand to show TLE details & historyLast TLE update: 2 weeks ago
TLE from 2 weeks ago
0 COSMOS 2491 DEB
1 57557U 13076AU 26245.36344761 -.00000315 00000-0 -21805-2 0 9998
2 57557 82.4743 118.0553 0086685 291.9014 67.2869 12.47283044150808Epoch: 2026-09-02T08:43Z
TLE epoch observation values (Epoch: 2026-09-02T08:43:21.873Z)
Latitude
0.00001°
Longitude
5.69712°
Altitude
1,452.798 km
Speed
7.148 km/s
True Right ascension
07h 52m 13s
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
23:21:24
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
1,541.285 km
Perigee altitude
1,405.166 km
Semi-major axis
7,851.363 km
Eccentricity
0.00867
Inclination
82.4743°
RAAN
118.0553°
Arg. of periapsis
291.9014°
True anomaly
68.20701°
Mean anomaly
67.2869°
Eccentric anomaly
67.74658°
Mean motion
3.11979 °/min
Orbital period
115.39 mins
BSTAR
-0.0021805
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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. |
|---|---|---|---|---|---|---|---|
| 15 mins | 2026-09-13 14:19:45.241Z | 154.999° SSE | 2026-09-13 14:27:45.241Z | 79.666° E | 45.575° | 2026-09-13 14:34:45.241Z | 21.455° NNE |
| 15 mins | 2026-09-13 16:16:45.241Z | 224.393° SW | 2026-09-13 16:23:45.241Z | 287.332° WNW | 39.426° | 2026-09-13 16:31:45.241Z | 353.648° N |
| 10 mins | 2026-09-14 00:30:45.241Z | 27.536° NE | 2026-09-14 00:35:45.241Z | 67.289° ENE | 21.193° | 2026-09-14 00:40:45.241Z | 105.263° ESE |
| 15 mins | 2026-09-14 02:25:45.241Z | 350.128° N | 2026-09-14 02:32:45.241Z | 283.631° WNW | 82.347° | 2026-09-14 02:40:45.241Z | 179.098° S |
| 7 mins | 2026-09-14 04:24:45.241Z | 306.602° NW | 2026-09-14 04:27:45.241Z | 284.772° WNW | 15.397° | 2026-09-14 04:31:45.241Z | 256.183° W |
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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