COSMOS 1275 DEB, 18639
Orbit data source: Space-Track
COSMOS 1275 DEB, 18639 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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18639 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, 0.050 m
Radar Cross Section
Small (<0.1 m²)
Expand to show TLE details & historyLast TLE update: 11 hours ago
TLE from 11 hours ago
0 COSMOS 1275 DEB
1 18639U 81053LZ 26318.19091622 .00001197 00000-0 12649-2 0 9996
2 18639 83.0617 30.9754 0142586 98.5268 292.2223 13.69422422 58815Epoch: 2026-11-14T04:34Z
TLE epoch observation values (Epoch: 2026-11-14T04:34:55.161Z)
Latitude
29.038°
Longitude
-87.20003°
Altitude
966.731 km
Speed
7.39 km/s
True Right ascension
02h 19m 18s
True Declination
28° 53' 47"
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
11:43:52
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
1,103.981 km
Perigee altitude
893.612 km
Semi-major axis
7,376.934 km
Eccentricity
0.01426
Inclination
83.0617°
RAAN
30.9754°
Arg. of periapsis
98.5268°
True anomaly
290.69966°
Mean anomaly
292.2223°
Eccentric anomaly
291.46199°
Mean motion
3.42554 °/min
Orbital period
105.09 mins
BSTAR
0.0012649
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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. |
|---|---|---|---|---|---|---|---|
| 7 mins | 2026-11-14 15:33:25.069Z | 33.77° NE | 2026-11-14 15:36:25.069Z | 66.636° ENE | 17.248° | 2026-11-14 15:40:25.069Z | 109.324° ESE |
| 10 mins | 2026-11-14 17:18:25.069Z | 344.115° N | 2026-11-14 17:23:25.069Z | 247.069° WSW | 62.061° | 2026-11-14 17:28:25.069Z | 188.343° SSW |
| 10 mins | 2026-11-15 05:06:25.069Z | 155.975° SSE | 2026-11-15 05:11:25.069Z | 76.827° E | 44.208° | 2026-11-15 05:16:25.069Z | 20.379° NNE |
| 8 mins | 2026-11-15 06:53:25.069Z | 242.677° WSW | 2026-11-15 06:57:25.069Z | 293.159° NW | 24.431° | 2026-11-15 07:01:25.069Z | 338.276° 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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