COSMOS 2491 DEB, 57566
Orbit data source: Space-Track
COSMOS 2491 DEB, 57566 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
57566 intel report (Beta)
Focus sentinelFocus sentinel
Edit Public Description
Focus sentinelFocus sentinel
Create New Watchlist
Expand to show TLE details & historyLast TLE update: 1 week ago
TLE from 1 week ago
0 COSMOS 2491 DEB
1 57566U 13076BD 26111.34882618 .00001759 00000-0 81628-2 0 9996
2 57566 82.4713 142.0582 0158641 229.8685 128.8423 12.71939524136699Epoch: 2026-04-21T08:22Z
TLE epoch observation values (Epoch: 2026-04-21T08:22:18.581Z)
Latitude
-0.00006°
Longitude
167.05488°
Altitude
1,455.101 km
Speed
7.099 km/s
True Right ascension
09h 28m 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
17:00:38
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
1,494.298 km
Perigee altitude
1,248.421 km
Semi-major axis
7,749.496 km
Eccentricity
0.01586
Inclination
82.4713°
RAAN
142.0582°
Arg. of periapsis
229.8685°
True anomaly
130.24067°
Mean anomaly
128.8423°
Eccentric anomaly
129.54323°
Mean motion
3.18151 °/min
Orbital period
113.15 mins
BSTAR
0.0081628
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 | 2026-05-01 10:40:48.614Z | 43.489° NE | 2026-05-01 10:42:48.614Z | 58.665° ENE | 11.614° | 2026-05-01 10:44:48.614Z | 73.934° E |
| 14 mins | 2026-05-01 12:31:48.614Z | 358.548° N | 2026-05-01 12:38:48.614Z | 89.401° E | 42.939° | 2026-05-01 12:45:48.614Z | 162.458° S |
| 9 mins | 2026-05-01 14:27:48.614Z | 315.669° NNW | 2026-05-01 14:31:48.614Z | 280.127° WNW | 20.391° | 2026-05-01 14:36:48.614Z | 236.869° WSW |
| 15 mins | 2026-05-02 01:12:48.614Z | 168.951° S | 2026-05-02 01:19:48.614Z | 95.711° ESE | 42.204° | 2026-05-02 01:27:48.614Z | 14.395° NNE |
| 12 mins | 2026-05-02 03:08:48.614Z | 242.16° WSW | 2026-05-02 03:14:48.614Z | 293.266° NW | 25.079° | 2026-05-02 03:20:48.614Z | 342.773° N |
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 |
|---|