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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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: 11 hours ago
TLE from 11 hours ago
0 COSMOS 1275 DEB
1 18639U 81053LZ 25340.60008625 .00002600 00000-0 28018-2 0 9994
2 18639 83.0598 278.1206 0144591 327.6269 212.0486 13.68633084 11936Epoch: 2025-12-06T14:24Z
TLE epoch observation values (Epoch: 2025-12-06T14:24:07.451Z)
Latitude
1.07427°
Longitude
166.33394°
Altitude
1,098.165 km
Speed
7.258 km/s
True Right ascension
06h 31m 57s
True Declination
1° 04' 05"
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
23:21:50
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
1,108.34 km
Perigee altitude
894.93 km
Semi-major axis
7,379.772 km
Eccentricity
0.01446
Inclination
83.0598°
RAAN
278.1206°
Arg. of periapsis
327.6269°
True anomaly
211.1827°
Mean anomaly
212.0486°
Eccentric anomaly
211.61433°
Mean motion
3.42357 °/min
Orbital period
105.15 mins
BSTAR
0.0028018
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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. |
|---|---|---|---|---|---|---|---|
| 11 mins | 2025-12-07 07:40:00.911Z | 1.434° NNE | 2025-12-07 07:45:00.911Z | 82.153° E | 43.013° | 2025-12-07 07:51:00.911Z | 163.361° S |
| 7 mins | 2025-12-07 09:27:00.911Z | 311.51° NW | 2025-12-07 09:30:00.911Z | 281.54° WNW | 18.653° | 2025-12-07 09:34:00.911Z | 241.929° WSW |
| 8 mins | 2025-12-07 19:29:00.911Z | 125.475° SE | 2025-12-07 19:33:00.911Z | 77.377° E | 21.375° | 2025-12-07 19:37:00.911Z | 36.054° NE |
| 10 mins | 2025-12-07 21:14:00.911Z | 214.324° SW | 2025-12-07 21:18:00.911Z | 279.053° WNW | 37.274° | 2025-12-07 21:24:00.911Z | 355.83° N |
Co-orbital & Co-planar RSOs
Thresholds — Semi-major Axis: ±100 km, RAAN: ±3°, Inclination: ±5°
TCA is derived from TLE conjunctions
Click to sort rows by RSO header in ascending order | Click to sort rows by Country header in ascending order | Click to sort rows by Type header in ascending order | Click to sort rows by Inclination Δ header in ascending order | Click to sort rows by RAAN Δ header in ascending order | Click to sort rows by Coplanar Angle header in ascending order | Click to sort rows by SMA Δ header in ascending order | Click to sort rows by Orbital period header in ascending order | Click to sort rows by <5km Md TCA header in descending order |
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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings
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