COSMOS 1275 DEB, 39966
Orbit data source: Space-Track
COSMOS 1275 DEB, 39966 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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39966 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
Medium (>0.1 m² and <1 m²)
Expand to show TLE details & historyLast TLE update: 23 hours ago
TLE from 23 hours ago
0 COSMOS 1275 DEB
1 39966U 81053PC 26254.54173483 .00000843 00000-0 52056-3 0 9990
2 39966 82.7045 289.7795 0041728 120.8291 33.0327 14.03859576625248Epoch: 2026-09-11T13:00Z
TLE epoch observation values (Epoch: 2026-09-11T13:00:05.889Z)
Latitude
25.68354°
Longitude
-79.31981°
Altitude
858.236 km
Speed
7.439 km/s
True Right ascension
07h 05m 04s
True Declination
25° 33' 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
04:45:18
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
907.856 km
Perigee altitude
847.302 km
Semi-major axis
7,255.716 km
Eccentricity
0.00417
Inclination
82.7045°
RAAN
289.7795°
Arg. of periapsis
120.8291°
True anomaly
33.2945°
Mean anomaly
33.0327°
Eccentric anomaly
33.16349°
Mean motion
3.51174 °/min
Orbital period
102.51 mins
BSTAR
0.00052056
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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. |
|---|---|---|---|---|---|---|---|
| 4 mins | 2026-09-12 12:49:41.655Z | 45.757° ENE | 2026-09-12 12:51:41.655Z | 68.509° E | 13.994° | 2026-09-12 12:53:41.655Z | 90.991° ESE |
| 9 mins | 2026-09-12 14:31:41.655Z | 346.554° N | 2026-09-12 14:35:41.655Z | 254.485° W | 73.506° | 2026-09-12 14:40:41.655Z | 182.026° SSW |
| 7 mins | 2026-09-13 02:02:41.655Z | 126.334° SE | 2026-09-13 02:05:41.655Z | 85.962° E | 24.351° | 2026-09-13 02:09:41.655Z | 37.277° NE |
| 9 mins | 2026-09-13 03:44:41.655Z | 218.735° SW | 2026-09-13 03:48:41.655Z | 281.107° WNW | 41.961° | 2026-09-13 03:53:41.655Z | 351.444° 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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