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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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 week ago
TLE from 1 week ago
0 COSMOS 1275 DEB
1 39939U 81053MZ 26041.15227817 .00000771 00000-0 73179-3 0 9991
2 39939 82.8202 188.5506 0071856 151.9131 208.5933 13.78528430587245Epoch: 2026-02-10T03:39Z
TLE epoch observation values (Epoch: 2026-02-10T03:39:16.833Z)
Latitude
-0.00009°
Longitude
-6.50639°
Altitude
1,018.463 km
Speed
7.319 km/s
True Right ascension
12h 34m 12s
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
06:02:46
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
1,019.033 km
Perigee altitude
913.485 km
Semi-major axis
7,344.396 km
Eccentricity
0.00719
Inclination
82.8202°
RAAN
188.5506°
Arg. of periapsis
151.9131°
True anomaly
208.20231°
Mean anomaly
208.5933°
Eccentric anomaly
208.3975°
Mean motion
3.44833 °/min
Orbital period
104.4 mins
BSTAR
0.00073179
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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. |
|---|---|---|---|---|---|---|---|
| 9 mins | 2026-02-18 08:36:49.793Z | 141.72° SSE | 2026-02-18 08:41:49.793Z | 80.749° E | 26.308° | 2026-02-18 08:45:49.793Z | 33.613° NE |
| 10 mins | 2026-02-18 10:21:49.793Z | 220.909° SW | 2026-02-18 10:26:49.793Z | 290.389° WNW | 31.788° | 2026-02-18 10:31:49.793Z | 349.917° N |
| 7 mins | 2026-02-18 19:33:49.793Z | 37.583° NE | 2026-02-18 19:36:49.793Z | 78.16° E | 21.126° | 2026-02-18 19:40:49.793Z | 121.783° SE |
| 9 mins | 2026-02-18 21:17:49.793Z | 334.681° NNW | 2026-02-18 21:21:49.793Z | 270.552° WNW | 36.322° | 2026-02-18 21:26:49.793Z | 199.371° SSW |
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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