COSMOS 1275 DEB, 39961
Orbit data source: Space-Track
COSMOS 1275 DEB, 39961 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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39961 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: 5 days ago
TLE from 5 days ago
0 COSMOS 1275 DEB
1 39961U 81053NX 25338.37669073 .00002772 00000-0 20054-2 0 9998
2 39961 82.7678 6.5797 0055824 137.2976 282.5146 13.95478378583314Epoch: 2025-12-04T09:02Z
TLE epoch observation values (Epoch: 2025-12-04T09:02:26.079Z)
Latitude
58.52689°
Longitude
169.43763°
Altitude
910.784 km
Speed
7.407 km/s
True Right ascension
01h 13m 55s
True Declination
58° 22' 36"
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
07:25:09
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
947.289 km
Perigee altitude
865.956 km
Semi-major axis
7,284.759 km
Eccentricity
0.00558
Inclination
82.7678°
RAAN
6.5797°
Arg. of periapsis
137.2976°
True anomaly
281.88917°
Mean anomaly
282.5146°
Eccentric anomaly
282.20198°
Mean motion
3.49076 °/min
Orbital period
103.13 mins
BSTAR
0.0020054
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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 | 2025-12-09 13:14:09.478Z | 358.516° N | 2025-12-09 13:19:09.478Z | 87.005° E | 43.26° | 2025-12-09 13:24:09.478Z | 164.675° S |
| 6 mins | 2025-12-10 00:51:09.478Z | 111.834° ESE | 2025-12-10 00:53:09.478Z | 89.306° E | 16.329° | 2025-12-10 00:57:09.478Z | 45.191° ENE |
| 9 mins | 2025-12-10 02:33:09.478Z | 204.621° SW | 2025-12-10 02:37:09.478Z | 285.549° WNW | 41.219° | 2025-12-10 02:42:09.478Z | 358.742° N |
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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