COSMOS 1275 DEB, 39961
Orbit data source: Space-Track
COSMOS 1275 DEB, 39961 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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39961 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
Medium (>0.1 m² and <1 m²)
Expand to show TLE details & historyLast TLE update: 4 days ago
TLE from 4 days ago
0 COSMOS 1275 DEB
1 39961U 81053NX 26281.31680764 .00000901 00000-0 63618-3 0 9996
2 39961 82.7642 124.4466 0053712 332.2052 149.6771 13.96262716626272Epoch: 2026-10-08T07:36Z
TLE epoch observation values (Epoch: 2026-10-08T07:36:12.180Z)
Latitude
57.18756°
Longitude
162.14473°
Altitude
950.196 km
Speed
7.365 km/s
True Right ascension
19h 32m 35s
True Declination
57° 02' 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
06:22:55
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
943.005 km
Perigee altitude
864.779 km
Semi-major axis
7,282.029 km
Eccentricity
0.00537
Inclination
82.7642°
RAAN
124.4466°
Arg. of periapsis
332.2052°
True anomaly
149.98605°
Mean anomaly
149.6771°
Eccentric anomaly
149.83176°
Mean motion
3.49273 °/min
Orbital period
103.07 mins
BSTAR
0.00063618
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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. |
|---|---|---|---|---|---|---|---|
| 6 mins | 2026-10-12 12:38:05.175Z | 114.93° SE | 2026-10-12 12:41:05.175Z | 80.982° E | 17.113° | 2026-10-12 12:44:05.175Z | 48.145° ENE |
| 10 mins | 2026-10-12 14:20:05.175Z | 203.215° SW | 2026-10-12 14:24:05.175Z | 270.965° WNW | 61.515° | 2026-10-12 14:30:05.175Z | 0.462° NNE |
| 10 mins | 2026-10-13 01:07:05.175Z | 353.188° N | 2026-10-13 01:12:05.175Z | 157.875° S | 86.447° | 2026-10-13 01:17:05.175Z | 173.969° S |
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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