COSMOS 1275 DEB, 12729
Orbit data source: Space-Track
COSMOS 1275 DEB, 12729 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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12729 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: 9 hours ago
TLE from 9 hours ago
0 COSMOS 1275 DEB
1 12729U 81053BW 26036.17517568 .00000675 00000-0 83329-3 0 9991
2 12729 83.0459 192.9127 0128800 133.9333 350.5517 13.60289892 61705Epoch: 2026-02-05T04:12Z
TLE epoch observation values (Epoch: 2026-02-05T04:12:15.178Z)
Latitude
55.24466°
Longitude
164.44738°
Altitude
949.625 km
Speed
7.429 km/s
True Right ascension
00h 11m 22s
True Declination
55° 05' 15"
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
14:54:49
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
1,127.243 km
Perigee altitude
936.363 km
Semi-major axis
7,409.94 km
Eccentricity
0.01288
Inclination
83.0459°
RAAN
192.9127°
Arg. of periapsis
133.9333°
True anomaly
350.30551°
Mean anomaly
350.5517°
Eccentric anomaly
350.429°
Mean motion
3.40268 °/min
Orbital period
105.8 mins
BSTAR
0.00083329
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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 | 2026-02-05 21:50:32.870Z | 4.237° NNE | 2026-02-05 21:55:32.870Z | 75.35° E | 39.237° | 2026-02-05 22:00:32.870Z | 154.266° SSE |
| 6 mins | 2026-02-05 23:39:32.870Z | 303.757° NW | 2026-02-05 23:41:32.870Z | 279.547° WNW | 18.402° | 2026-02-05 23:45:32.870Z | 235.621° WSW |
| 7 mins | 2026-02-06 09:45:32.870Z | 118.249° SE | 2026-02-06 09:48:32.870Z | 83.515° E | 21.051° | 2026-02-06 09:52:32.870Z | 40.452° NE |
| 11 mins | 2026-02-06 11:29:32.870Z | 207.163° SW | 2026-02-06 11:34:32.870Z | 275.813° WNW | 39.092° | 2026-02-06 11:40:32.870Z | 356.739° 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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