COSMOS 1275 DEB, 39951
Orbit data source: Space-Track
COSMOS 1275 DEB, 39951 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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39951 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: 1 day ago
TLE from 1 day ago
0 COSMOS 1275 DEB
1 39951U 81053NM 26008.20504619 .00006371 00000-0 30059-2 0 9993
2 39951 82.8246 326.2378 0057305 315.2900 44.3667 14.18837326594461Epoch: 2026-01-08T04:55Z
TLE epoch observation values (Epoch: 2026-01-08T04:55:15.990Z)
Latitude
-0.00005°
Longitude
144.65867°
Altitude
802.83 km
Speed
7.467 km/s
True Right ascension
21h 44m 57s
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
08:44:28
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
867.666 km
Perigee altitude
785.095 km
Semi-major axis
7,204.517 km
Eccentricity
0.00573
Inclination
82.8246°
RAAN
326.2378°
Arg. of periapsis
315.29°
True anomaly
44.82823°
Mean anomaly
44.3667°
Eccentric anomaly
44.59723°
Mean motion
3.54924 °/min
Orbital period
101.43 mins
BSTAR
0.0030059
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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 | 2026-01-09 08:34:22.039Z | 2.333° NNE | 2026-01-09 08:39:22.039Z | 77.029° E | 40.226° | 2026-01-09 08:44:22.039Z | 157.324° SSE |
| 5 mins | 2026-01-09 10:19:22.039Z | 298.935° NW | 2026-01-09 10:21:22.039Z | 273.65° WNW | 17.035° | 2026-01-09 10:24:22.039Z | 239.762° WSW |
| 9 mins | 2026-01-09 21:39:22.039Z | 183.484° SSW | 2026-01-09 21:43:22.039Z | 165.458° S | 44.373° | 2026-01-09 21:48:22.039Z | 8.34° NNE |
| 9 mins | 2026-01-10 08:17:22.039Z | 13.849° NNE | 2026-01-10 08:21:22.039Z | 89.072° E | 35.402° | 2026-01-10 08:26:22.039Z | 150.752° SSE |
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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