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, 0.1 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 18639U 81053LZ 26222.41417888 .00000766 00000-0 80642-3 0 9991
2 18639 83.0584 100.1257 0144175 3.2879 116.8187 13.69231325 45707Epoch: 2026-08-10T09:56Z
TLE epoch observation values (Epoch: 2026-08-10T09:56:25.055Z)
Latitude
57.84826°
Longitude
161.01361°
Altitude
1,061.299 km
Speed
7.302 km/s
True Right ascension
17h 56m 03s
True Declination
57° 41' 58"
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
14:02:26
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
1,105.85 km
Perigee altitude
893.117 km
Semi-major axis
7,377.62 km
Eccentricity
0.01442
Inclination
83.0584°
RAAN
100.1257°
Arg. of periapsis
3.2879°
True anomaly
118.28106°
Mean anomaly
116.8187°
Eccentric anomaly
117.55109°
Mean motion
3.42506 °/min
Orbital period
105.11 mins
BSTAR
0.00080642
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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. |
|---|---|---|---|---|---|---|---|
| 12 mins | 2026-08-11 03:28:03.794Z | 1.476° NNE | 2026-08-11 03:34:03.794Z | 86.297° E | 41.375° | 2026-08-11 03:40:03.794Z | 159.713° S |
| 8 mins | 2026-08-11 05:16:03.794Z | 311.979° NW | 2026-08-11 05:19:03.794Z | 279.995° WNW | 20.023° | 2026-08-11 05:24:03.794Z | 231.659° WSW |
| 6 mins | 2026-08-11 15:19:03.794Z | 114.699° SE | 2026-08-11 15:22:03.794Z | 78.011° E | 18.364° | 2026-08-11 15:25:03.794Z | 44.767° NE |
| 9 mins | 2026-08-11 17:03:03.794Z | 209.595° SW | 2026-08-11 17:07:03.794Z | 279.761° WNW | 38.919° | 2026-08-11 17:12:03.794Z | 355.126° 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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