COSMOS 1285 DEB, 13961
Orbit data source: Space-Track
COSMOS 1285 DEB, 13961 is space debris in HEO originally from a launch on Tue, 04 Aug 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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13961 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, 1.1 m
Radar Cross Section
Large (>1 m²)
Expand to show TLE details & historyLast TLE update: 1 day ago
TLE from 1 day ago
0 COSMOS 1285 DEB
1 13961U 81071F 26083.09265527 .00000584 00000-0 00000+0 0 9998
2 13961 70.5367 81.1143 5577749 339.9044 4.7325 1.98113697320599Epoch: 2026-03-24T02:13Z
TLE epoch observation values (Epoch: 2026-03-24T02:13:25.415Z)
Latitude
-0°
Longitude
-133.81574°
Altitude
5,730.011 km
Speed
7.139 km/s
True Right ascension
05h 24m 27s
True Declination
0° 00' 00"
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
09:37:29
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
35,335.839 km
Perigee altitude
5,463.733 km
Semi-major axis
26,777.923 km
Eccentricity
0.55777
Inclination
70.5367°
RAAN
81.1143°
Arg. of periapsis
339.9044°
True anomaly
19.79931°
Mean anomaly
4.7325°
Eccentric anomaly
10.62489°
Mean motion
0.49531 °/min
Orbital period
726.82 mins
BSTAR
0
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Other satellites on launch #71 in the year 1981 (1981-08-04 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 1285 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. |
|---|---|---|---|---|---|---|---|
| 459 mins | 2026-03-25 04:27:21.107Z | 35.696° NE | 2026-03-25 09:21:21.107Z | 120.043° SE | 30.444° | 2026-03-25 12:06:21.107Z | 168.583° S |
| 92 mins | 2026-03-25 16:04:21.107Z | 342.959° N | 2026-03-25 16:43:21.107Z | 328.859° NNW | 14.137° | 2026-03-25 17:36:21.107Z | 317.185° NNW |
| 103 mins | 2026-03-26 02:44:21.107Z | 233.972° WSW | 2026-03-26 03:16:21.107Z | 314.614° NW | 41.126° | 2026-03-26 04:27:21.107Z | 30.983° NE |
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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