COSMOS 1275 DEB, 39959
Orbit data source: Space-Track
COSMOS 1275 DEB, 39959 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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39959 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: 1 month ago
TLE from 1 month ago
0 COSMOS 1275 DEB
1 39959U 81053NV 26186.88865432 .00000073 00000-0 58700-4 0 9993
2 39959 82.9596 244.3568 0040697 96.7846 263.7944 13.75514692606419Epoch: 2026-07-05T21:19Z
TLE epoch observation values (Epoch: 2026-07-05T21:19:39.733Z)
Latitude
0.00001°
Longitude
0.55972°
Altitude
986.097 km
Speed
7.357 km/s
True Right ascension
16h 17m 25s
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
17:19:22
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
1,006.919 km
Perigee altitude
947.053 km
Semi-major axis
7,355.123 km
Eccentricity
0.00407
Inclination
82.9596°
RAAN
244.3568°
Arg. of periapsis
96.7846°
True anomaly
263.33104°
Mean anomaly
263.7944°
Eccentric anomaly
263.56269°
Mean motion
3.44079 °/min
Orbital period
104.63 mins
BSTAR
0.0000587
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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 | 2026-08-12 10:43:31.459Z | 10.721° NNE | 2026-08-12 10:49:31.459Z | 85.803° E | 30.653° | 2026-08-12 10:54:31.459Z | 140.403° SSE |
| 9 mins | 2026-08-12 12:30:31.459Z | 324.028° NNW | 2026-08-12 12:34:31.459Z | 269.953° W | 28.533° | 2026-08-12 12:39:31.459Z | 213.706° SW |
| 11 mins | 2026-08-13 00:13:31.459Z | 181.869° SSW | 2026-08-13 00:18:31.459Z | 94.267° ESE | 44.82° | 2026-08-13 00:24:31.459Z | 8.64° NNE |
| 4 mins | 2026-08-13 02:03:31.459Z | 280.541° WNW | 2026-08-13 02:04:31.459Z | 291.069° WNW | 13.425° | 2026-08-13 02:07:31.459Z | 321.261° 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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