COSMOS 2499 DEB, 55729
Orbit data source: Space-Track
COSMOS 2499 DEB, 55729 is space debris in LEO originally from a launch on Fri, 23 May 2014 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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55729 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: 4 days ago
TLE from 4 days ago
0 COSMOS 2499 DEB
1 55729U 14028AR 26152.03413643 .00000035 00000-0 84194-4 0 9991
2 55729 82.4536 263.1477 0232127 36.9876 324.6979 12.83479791157985Epoch: 2026-06-01T00:49Z
TLE epoch observation values (Epoch: 2026-06-01T00:49:09.387Z)
Latitude
-0.00002°
Longitude
1.33133°
Altitude
1,185.691 km
Speed
7.329 km/s
True Right ascension
17h 32m 35s
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
11:20:24
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
1,503.61 km
Perigee altitude
1,145.998 km
Semi-major axis
7,702.941 km
Eccentricity
0.02321
Inclination
82.4536°
RAAN
263.1477°
Arg. of periapsis
36.9876°
True anomaly
323.12368°
Mean anomaly
324.6979°
Eccentric anomaly
323.91455°
Mean motion
3.21039 °/min
Orbital period
112.14 mins
BSTAR
0.000084194
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Other satellites on launch #28 in the year 2014 (2014-05-23 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 2499 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. |
|---|---|---|---|---|---|---|---|
| 6 mins | 2026-06-05 05:59:54.066Z | 104.801° ESE | 2026-06-05 06:02:54.066Z | 78.61° E | 13.343° | 2026-06-05 06:05:54.066Z | 52.525° ENE |
| 12 mins | 2026-06-05 07:49:54.066Z | 188.322° SSW | 2026-06-05 07:54:54.066Z | 276.099° WNW | 44.937° | 2026-06-05 08:01:54.066Z | 7.023° NNE |
| 4 mins | 2026-06-05 09:47:54.066Z | 286.115° WNW | 2026-06-05 09:48:54.066Z | 295.202° NW | 13.056° | 2026-06-05 09:51:54.066Z | 321.52° NNW |
| 13 mins | 2026-06-05 17:39:54.066Z | 16.407° NNE | 2026-06-05 17:45:54.066Z | 75.798° E | 28.629° | 2026-06-05 17:52:54.066Z | 133.263° SE |
| 14 mins | 2026-06-05 19:32:54.066Z | 337.583° N | 2026-06-05 19:38:54.066Z | 270.832° WNW | 37.964° | 2026-06-05 19:46:54.066Z | 197.759° SSW |
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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