COSMOS 1275 DEB, 12739
Orbit data source: Space-Track
COSMOS 1275 DEB, 12739 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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12739 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: 14 hours ago
TLE from 14 hours ago
0 COSMOS 1275 DEB
1 12739U 81053CG 26035.38399037 .00006754 00000-0 19312-2 0 9997
2 12739 82.9332 23.9020 0004593 192.6690 167.4390 14.44981473286372Epoch: 2026-02-04T09:12Z
TLE epoch observation values (Epoch: 2026-02-04T09:12:56.767Z)
Latitude
-0.00009°
Longitude
111.11411°
Altitude
748.277 km
Speed
7.479 km/s
True Right ascension
01h 35m 36s
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
01:42:26
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
742.409 km
Perigee altitude
735.871 km
Semi-major axis
7,117.277 km
Eccentricity
0.00046
Inclination
82.9332°
RAAN
23.902°
Arg. of periapsis
192.669°
True anomaly
167.45044°
Mean anomaly
167.439°
Eccentric anomaly
167.44472°
Mean motion
3.6147 °/min
Orbital period
99.59 mins
BSTAR
0.0019312
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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 | 2026-02-05 00:17:20.010Z | 205.72° SW | 2026-02-05 00:21:20.010Z | 264.233° W | 37.547° | 2026-02-05 00:26:20.010Z | 355.765° N |
| 8 mins | 2026-02-05 10:43:20.010Z | 4.339° NNE | 2026-02-05 10:47:20.010Z | 87.628° E | 40.334° | 2026-02-05 10:51:20.010Z | 157.849° S |
| 8 mins | 2026-02-05 23:34:20.010Z | 171.857° S | 2026-02-05 23:37:20.010Z | 104.648° ESE | 42.803° | 2026-02-05 23:42:20.010Z | 12.553° NNE |
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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