COSMOS 1275, 12504
Orbit data source: Space-Track
COSMOS 1275, 12504 is a payload satellite owned by VMF (CIS) in LEO that was launched on Thu, 04 Jun 1981 UTC via a KOSMOS 11K65M launch vehicle from the Plesetsk Missile And Space Complex (PKMTR). Payload-class satellites include a variety of spacecraft equipped with specific instruments for various scientific and technological missions. These include communications satellites like Starlink; space stations such as the ISS; scientific satellites like the Hubble; Earth observation satellites from companies like Planet Labs, Umbra, and HawkEye 360; GPS; miniature CubeSats for education and research; and military/defense satellites.
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12504 intel report (Beta)
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Identifier
Orbit
Country
CISRelated business
Manufacturer
Omsk Av. Zav.
Mission
Spacecraft
Bus & Motor
KAUR-1 11F627, Unknown motor
Mass
800 kg wet, 800 kg dry
Launch date (UTC)
Launch vehicle
Launch site
Object type
Shape & HBR
Unknown
Radar Cross Section
Large (>1 m²)
Expand to show TLE details & historyLast TLE update: 9 hours ago
TLE from 9 hours ago
0 COSMOS 1275
1 12504U 81053A 26087.59338591 .00000062 00000-0 49270-4 0 9999
2 12504 82.9617 324.9819 0040708 45.0379 315.4066 13.74527625248203Epoch: 2026-03-28T14:14Z
TLE epoch observation values (Epoch: 2026-03-28T14:14:28.542Z)
Latitude
0.00004°
Longitude
-74.64842°
Altitude
964.977 km
Speed
7.38 km/s
True Right ascension
21h 39m 55s
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
05:02:01
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
1,010.465 km
Perigee altitude
950.554 km
Semi-major axis
7,358.647 km
Eccentricity
0.00407
Inclination
82.9617°
RAAN
324.9819°
Arg. of periapsis
45.0379°
True anomaly
315.07791°
Mean anomaly
315.4066°
Eccentric anomaly
315.24237°
Mean motion
3.43832 °/min
Orbital period
104.7 mins
BSTAR
0.00004927
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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 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. |
|---|---|---|---|---|---|---|---|
| 11 mins | 2026-03-29 03:02:54.342Z | 8.315° NNE | 2026-03-29 03:07:54.342Z | 67.825° E | 34.216° | 2026-03-29 03:13:54.342Z | 147.114° SSE |
| 8 mins | 2026-03-29 04:49:54.342Z | 319.549° NNW | 2026-03-29 04:53:54.342Z | 268.406° W | 24.414° | 2026-03-29 04:57:54.342Z | 223.796° SW |
| 10 mins | 2026-03-29 16:33:54.342Z | 190.404° SSW | 2026-03-29 16:38:54.342Z | 330.886° NNW | 44.063° | 2026-03-29 16:43:54.342Z | 4.625° NNE |
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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