COSMOS 1275 DEB, 39939
Orbit data source: Space-Track
COSMOS 1275 DEB, 39939 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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39939 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 days ago
TLE from 2 days ago
0 COSMOS 1275 DEB
1 39939U 81053MZ 25330.51848187 .00000908 00000-0 86729-3 0 9997
2 39939 82.8191 245.8936 0072492 4.0697 356.1034 13.78410544576828Epoch: 2025-11-26T12:26Z
TLE epoch observation values (Epoch: 2025-11-26T12:26:36.833Z)
Latitude
-0.00004°
Longitude
-6.44847°
Altitude
919.281 km
Speed
7.419 km/s
True Right ascension
16h 23m 34s
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
14:26:00
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
1,019.922 km
Perigee altitude
913.434 km
Semi-major axis
7,344.815 km
Eccentricity
0.00725
Inclination
82.8191°
RAAN
245.8936°
Arg. of periapsis
4.0697°
True anomaly
356.04643°
Mean anomaly
356.1034°
Eccentric anomaly
356.07497°
Mean motion
3.44804 °/min
Orbital period
104.41 mins
BSTAR
0.00086729
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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 | 2025-11-28 18:33:06.051Z | 162.846° S | 2025-11-28 18:38:06.051Z | 98.578° ESE | 37.131° | 2025-11-28 18:43:06.051Z | 21.339° NNE |
| 7 mins | 2025-11-28 20:21:06.051Z | 253.445° W | 2025-11-28 20:24:06.051Z | 292.239° WNW | 20.917° | 2025-11-28 20:28:06.051Z | 336.762° NNW |
| 9 mins | 2025-11-29 05:30:06.051Z | 17.22° NNE | 2025-11-29 05:34:06.051Z | 77.719° E | 33.461° | 2025-11-29 05:39:06.051Z | 142.081° SSE |
| 9 mins | 2025-11-29 07:15:06.051Z | 322.935° NNW | 2025-11-29 07:19:06.051Z | 273.342° WNW | 26.375° | 2025-11-29 07:24:06.051Z | 217.904° SW |
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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