COSMOS 1275 DEB, 39963
Orbit data source: Space-Track
COSMOS 1275 DEB, 39963 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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39963 intel report (Beta)
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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: 2 days ago
TLE from 2 days ago
0 COSMOS 1275 DEB
1 39963U 81053NZ 26054.41755867 .00000956 00000-0 10446-2 0 9994
2 39963 83.0047 101.0610 0132367 55.7225 305.6378 13.67849829583635Epoch: 2026-02-23T10:01Z
TLE epoch observation values (Epoch: 2026-02-23T10:01:17.069Z)
Latitude
0.00002°
Longitude
157.42815°
Altitude
954.085 km
Speed
7.403 km/s
True Right ascension
06h 44m 14s
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
21:11:02
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
1,102.177 km
Perigee altitude
906.735 km
Semi-major axis
7,382.593 km
Eccentricity
0.01324
Inclination
83.0047°
RAAN
101.061°
Arg. of periapsis
55.7225°
True anomaly
304.39316°
Mean anomaly
305.6378°
Eccentric anomaly
305.01668°
Mean motion
3.4216 °/min
Orbital period
105.21 mins
BSTAR
0.0010446
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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. |
|---|---|---|---|---|---|---|---|
| 10 mins | 2026-02-26 03:05:06.058Z | 165.083° S | 2026-02-26 03:10:06.058Z | 86.828° E | 38.96° | 2026-02-26 03:15:06.058Z | 17.863° NNE |
| 6 mins | 2026-02-26 04:54:06.058Z | 260.83° W | 2026-02-26 04:56:06.058Z | 285.661° WNW | 18.552° | 2026-02-26 05:00:06.058Z | 331.754° NNW |
| 10 mins | 2026-02-26 14:06:06.058Z | 12.007° NNE | 2026-02-26 14:10:06.058Z | 70.877° E | 36.441° | 2026-02-26 14:16:06.058Z | 150.538° SSE |
| 8 mins | 2026-02-26 15:53:06.058Z | 312.131° NW | 2026-02-26 15:56:06.058Z | 274.204° WNW | 23.068° | 2026-02-26 16:01:06.058Z | 222.847° SW |
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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