COSMOS 1275 DEB, 39956
Orbit data source: Space-Track
COSMOS 1275 DEB, 39956 is space debris in LEO originally from a launch on Thu, 04 Jun 1981 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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39956 intel report (Beta)
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Edit Public Description
Identifier
Orbit
Country
CISRelated business
Manufacturer
Unknown
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: 21 hours ago
TLE from 21 hours ago
0 COSMOS 1275 DEB
1 39956U 81053NS 25287.88028544 .00001666 00000-0 16133-2 0 9997
2 39956 83.0149 93.2111 0122907 259.6931 99.0351 13.75930907568563Epoch: 2025-10-14T21:07Z
TLE epoch observation values (Epoch: 2025-10-14T21:07:36.662Z)
Latitude
0.00006°
Longitude
112.64598°
Altitude
996.54 km
Speed
7.346 km/s
True Right ascension
06h 12m 50s
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
13:04:13
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
1,065.88 km
Perigee altitude
885.118 km
Semi-major axis
7,353.636 km
Eccentricity
0.01229
Inclination
83.0149°
RAAN
93.2111°
Arg. of periapsis
259.6931°
True anomaly
100.42255°
Mean anomaly
99.0351°
Eccentric anomaly
99.72918°
Mean motion
3.44183 °/min
Orbital period
104.6 mins
BSTAR
0.0016133
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Other satellites on launch #53 in the year 1981 (1981-06-04 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 1275 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. |
|---|---|---|---|---|---|---|---|
| 11 mins | 2025-10-15 22:08:32.570Z | 9.982° NNE | 2025-10-15 22:14:32.570Z | 76.828° E | 30.029° | 2025-10-15 22:19:32.570Z | 136.561° SSE |
| 9 mins | 2025-10-15 23:55:32.570Z | 327.859° NNW | 2025-10-15 23:59:32.570Z | 277.678° WNW | 29.892° | 2025-10-16 00:04:32.570Z | 214.131° SW |
| 11 mins | 2025-10-16 11:38:32.570Z | 178.514° S | 2025-10-16 11:43:32.570Z | 54.054° ENE | 44.165° | 2025-10-16 11:49:32.570Z | 9.604° NNE |
| 6 mins | 2025-10-16 13:26:32.570Z | 264.819° W | 2025-10-16 13:29:32.570Z | 295.147° NW | 16.045° | 2025-10-16 13:32:32.570Z | 324.44° NNW |
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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