COSMOS 1275 DEB, 12735
Orbit data source: Space-Track
COSMOS 1275 DEB, 12735 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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12735 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, 0.2 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 12735U 81053CC 26119.41394547 .00000473 00000-0 49506-3 0 9992
2 12735 83.1383 99.3404 0100627 137.4168 25.9686 13.70818412227621Epoch: 2026-04-29T09:56Z
TLE epoch observation values (Epoch: 2026-04-29T09:56:04.888Z)
Latitude
15.96638°
Longitude
-89.01792°
Altitude
932.284 km
Speed
7.42 km/s
True Right ascension
18h 29m 30s
True Declination
15° 52' 40"
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
07:46:38
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
1,067.962 km
Perigee altitude
919.6 km
Semi-major axis
7,371.918 km
Eccentricity
0.01006
Inclination
83.1383°
RAAN
99.3404°
Arg. of periapsis
137.4168°
True anomaly
26.47928°
Mean anomaly
25.9686°
Eccentric anomaly
26.22336°
Mean motion
3.42904 °/min
Orbital period
104.99 mins
BSTAR
0.00049506
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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. |
|---|---|---|---|---|---|---|---|
| 5 mins | 2026-04-30 01:05:15.712Z | 266.917° W | 2026-04-30 01:08:15.712Z | 297.521° NW | 14.331° | 2026-04-30 01:10:15.712Z | 317.734° NNW |
| 10 mins | 2026-04-30 10:16:15.712Z | 3.179° NNE | 2026-04-30 10:20:15.712Z | 67.132° ENE | 41.962° | 2026-04-30 10:26:15.712Z | 162.885° S |
| 5 mins | 2026-04-30 12:03:15.712Z | 304.84° NW | 2026-04-30 12:05:15.712Z | 282.778° WNW | 15.474° | 2026-04-30 12:08:15.712Z | 249.387° W |
| 8 mins | 2026-04-30 22:04:15.712Z | 124.123° SE | 2026-04-30 22:07:15.712Z | 90.127° ESE | 21.629° | 2026-04-30 22:12:15.712Z | 35.551° NE |
| 10 mins | 2026-04-30 23:48:15.712Z | 210.395° SW | 2026-04-30 23:53:15.712Z | 287.213° WNW | 37.65° | 2026-04-30 23:58:15.712Z | 353.496° 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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