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: 2 weeks ago
TLE from 2 weeks ago
0 COSMOS 1275 DEB
1 39961U 81053NX 25272.13008310 .00002578 00000-0 18776-2 0 9992
2 39961 82.7666 58.6109 0053951 328.9122 153.8389 13.95152451574070Epoch: 2025-09-29T03:07Z
TLE epoch observation values (Epoch: 2025-09-29T03:07:19.179Z)
Latitude
56.37987°
Longitude
172.69621°
Altitude
955.388 km
Speed
7.361 km/s
True Right ascension
15h 10m 39s
True Declination
56° 13' 31"
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
13:04:12
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
947.066 km
Perigee altitude
868.45 km
Semi-major axis
7,285.895 km
Eccentricity
0.0054
Inclination
82.7666°
RAAN
58.6109°
Arg. of periapsis
328.9122°
True anomaly
154.10984°
Mean anomaly
153.8389°
Eccentric anomaly
153.97453°
Mean motion
3.48995 °/min
Orbital period
103.15 mins
BSTAR
0.0018776
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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. |
|---|---|---|---|---|---|---|---|
| 7 mins | 2025-10-15 18:26:31.917Z | 33.186° NE | 2025-10-15 18:29:31.917Z | 64.898° ENE | 16.325° | 2025-10-15 18:33:31.917Z | 107.014° ESE |
| 10 mins | 2025-10-15 20:09:31.917Z | 345.964° N | 2025-10-15 20:14:31.917Z | 255.68° W | 42.973° | 2025-10-15 20:19:31.917Z | 185.508° SSW |
| 8 mins | 2025-10-16 07:44:31.917Z | 137.807° SSE | 2025-10-16 07:48:31.917Z | 83.108° E | 26.718° | 2025-10-16 07:52:31.917Z | 33.604° NE |
| 9 mins | 2025-10-16 09:28:31.917Z | 228.905° WSW | 2025-10-16 09:32:31.917Z | 292.734° NW | 30.642° | 2025-10-16 09:37:31.917Z | 350.12° 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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