COSMOS 1261 DEB, 12893
Orbit data source: Space-Track
COSMOS 1261 DEB, 12893 is space debris originally from a launch on Tue, 31 Mar 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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12893 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, 0.6 m
Radar Cross Section
Medium (>0.1 m² and <1 m²)
Expand to show TLE details & historyLast TLE update: 1 day ago
TLE from 1 day ago
0 COSMOS 1261 DEB
1 12893U 81031F 25353.41692907 -.00000807 00000-0 00000+0 0 9997
2 12893 64.6583 7.8904 7107267 26.9302 356.9104 2.01108501308497Epoch: 2025-12-19T10:00Z
TLE epoch observation values (Epoch: 2025-12-19T10:00:22.671Z)
Latitude
0.0001°
Longitude
129.51812°
Altitude
1,658.29 km
Speed
9.175 km/s
True Right ascension
00h 31m 29s
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
14:47:39
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
38,975.437 km
Perigee altitude
1,290.872 km
Semi-major axis
26,511.292 km
Eccentricity
0.71073
Inclination
64.6583°
RAAN
7.8904°
Arg. of periapsis
26.9302°
True anomaly
334.72613°
Mean anomaly
356.9104°
Eccentric anomaly
349.46504°
Mean motion
0.5028 °/min
Orbital period
715.99 mins
BSTAR
0
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Other satellites on launch #31 in the year 1981 (1981-03-31 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 1261 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. |
|---|---|---|---|---|---|---|---|
| 32 mins | 2025-12-20 15:50:11.613Z | 202.213° SSW | 2025-12-20 15:50:11.613Z | 202.213° SSW | 14.926° | 2025-12-20 16:22:11.613Z | 206.369° SW |
| 342 mins | 2025-12-21 10:08:11.613Z | 328.752° NNW | 2025-12-21 10:31:11.613Z | 56.38° ENE | 42.89° | 2025-12-21 15:50:11.613Z | 202.508° SW |
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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