COSMOS 2491 DEB, 57550
Orbit data source: Space-Track
COSMOS 2491 DEB, 57550 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.
Focus sentinelFocus sentinel
Request partner network tasking
Focus sentinelFocus sentinel
Embed this page
Focus sentinelFocus sentinel
57550 intel report (Beta)
Focus sentinelFocus sentinel
Create New Watchlist
Focus sentinelFocus sentinel
Edit Public Description
Expand to show TLE details & historyLast TLE update: 1 day ago
TLE from 1 day ago
0 COSMOS 2491 DEB
1 57550U 13076AM 26034.70432780 .00002623 00000-0 12138-1 0 9994
2 57550 82.4727 186.1511 0103733 54.3832 306.6875 12.74376423127081Epoch: 2026-02-03T16:54Z
TLE epoch observation values (Epoch: 2026-02-03T16:54:13.921Z)
Latitude
-0.00005°
Longitude
158.71165°
Altitude
1,319.457 km
Speed
7.219 km/s
True Right ascension
12h 24m 36s
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
04:37:54
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
1,441.756 km
Perigee altitude
1,281.185 km
Semi-major axis
7,739.608 km
Eccentricity
0.01037
Inclination
82.4727°
RAAN
186.1511°
Arg. of periapsis
54.3832°
True anomaly
305.72689°
Mean anomaly
306.6875°
Eccentric anomaly
306.20793°
Mean motion
3.18761 °/min
Orbital period
112.94 mins
BSTAR
0.012138
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 #76 in the year 2013 (2013-12-25 UTC)
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 2491 DEB 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. |
|---|---|---|---|---|---|---|---|
| 4 mins | 2026-02-05 08:39:19.393Z | 91.148° ESE | 2026-02-05 08:41:19.393Z | 75.265° E | 11.791° | 2026-02-05 08:43:19.393Z | 59.515° ENE |
| 14 mins | 2026-02-05 10:27:19.393Z | 179.14° S | 2026-02-05 10:33:19.393Z | 130.702° SE | 44.214° | 2026-02-05 10:41:19.393Z | 10.354° NNE |
| 8 mins | 2026-02-05 12:25:19.393Z | 265.442° W | 2026-02-05 12:28:19.393Z | 292.582° NW | 17.947° | 2026-02-05 12:33:19.393Z | 335.164° NNW |
| 12 mins | 2026-02-05 20:23:19.393Z | 19.47° NNE | 2026-02-05 20:28:19.393Z | 65.547° ENE | 25.637° | 2026-02-05 20:35:19.393Z | 126.528° SE |
| 14 mins | 2026-02-05 22:16:19.393Z | 341.821° N | 2026-02-05 22:23:19.393Z | 259.68° W | 39.828° | 2026-02-05 22:30:19.393Z | 194.529° SSW |
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 |
|---|