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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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: 2 weeks ago
TLE from 2 weeks ago
0 COSMOS 1275 DEB
1 39959U 81053NV 25328.49763391 .00000126 00000-0 11475-3 0 9994
2 39959 82.9629 49.5719 0038995 2.6357 357.4997 13.75473242575701Epoch: 2025-11-24T11:56Z
TLE epoch observation values (Epoch: 2025-11-24T11:56:35.569Z)
Latitude
-0.00007°
Longitude
166.72694°
Altitude
954.216 km
Speed
7.389 km/s
True Right ascension
03h 18m 17s
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
09:18:34
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
1,005.816 km
Perigee altitude
948.452 km
Semi-major axis
7,355.271 km
Eccentricity
0.0039
Inclination
82.9629°
RAAN
49.5719°
Arg. of periapsis
2.6357°
True anomaly
357.48011°
Mean anomaly
357.4997°
Eccentric anomaly
357.48992°
Mean motion
3.44069 °/min
Orbital period
104.63 mins
BSTAR
0.00011475
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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 | 2025-12-05 15:37:59.501Z | 7.216° NNE | 2025-12-05 15:43:59.501Z | 87.439° E | 34.877° | 2025-12-05 15:48:59.501Z | 146.705° SSE |
| 8 mins | 2025-12-05 17:24:59.501Z | 320.353° NNW | 2025-12-05 17:28:59.501Z | 271.077° WNW | 24.547° | 2025-12-05 17:32:59.501Z | 225.524° WSW |
| 4 mins | 2025-12-06 03:26:59.501Z | 94.328° ESE | 2025-12-06 03:27:59.501Z | 84.061° E | 13.089° | 2025-12-06 03:30:59.501Z | 54.204° ENE |
| 11 mins | 2025-12-06 05:07:59.501Z | 190.114° SSW | 2025-12-06 05:12:59.501Z | 279.154° WNW | 44.658° | 2025-12-06 05:18:59.501Z | 4.972° NNE |
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 |
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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings
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