COSMOS 1261 DEB, 12894
Orbit data source: Space-Track
COSMOS 1261 DEB, 12894 is space debris in HEO 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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12894 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
Radar Cross Section
Medium (>0.1 m² and <1 m²)
Expand to show TLE details & historyLast TLE update: 21 hours ago
TLE from 21 hours ago
0 COSMOS 1261 DEB
1 12894U 81031G 25258.23747128 -.00000508 00000-0 00000-0 0 9997
2 12894 69.4507 108.1008 5810572 357.0668 186.5942 2.00404035296255Epoch: 2025-09-15T05:41Z
TLE epoch observation values (Epoch: 2025-09-15T05:41:57.518Z)
Latitude
0.69292°
Longitude
-152.09106°
Altitude
35,587.665 km
Speed
1.999 km/s
True Right ascension
19h 11m 22s
True Declination
0° 41' 32"
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
19:03:44
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
35,636.074 km
Perigee altitude
4,754.636 km
Semi-major axis
26,573.492 km
Eccentricity
0.58106
Inclination
69.4507°
RAAN
108.1008°
Arg. of periapsis
357.0668°
True anomaly
182.14833°
Mean anomaly
186.5942°
Eccentric anomaly
184.17211°
Mean motion
0.50104 °/min
Orbital period
718.51 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. |
|---|---|---|---|---|---|---|---|
| 248 mins | 2025-09-16 02:23:01.939Z | 247.351° WSW | 2025-09-16 02:23:01.939Z | 247.351° WSW | 44.115° | 2025-09-16 06:31:01.939Z | 242.063° WSW |
| 36 mins | 2025-09-16 11:39:01.939Z | 91.341° ESE | 2025-09-16 11:52:01.939Z | 58.504° ENE | 16.498° | 2025-09-16 12:15:01.939Z | 25.71° NE |
| 135 mins | 2025-09-17 00:08:01.939Z | 329.114° NNW | 2025-09-17 01:53:01.939Z | 284.072° WNW | 44.524° | 2025-09-17 02:23:01.939Z | 246.184° WSW |
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 ascending order |
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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings
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