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
CYL + ANT, 1.1 m
Radar Cross Section
Large (>1 m²)
Expand to show TLE details & historyLast TLE update: 17 hours ago
TLE from 17 hours ago
0 COSMOS 1275
1 12504U 81053A 26318.27406332 .00000043 00000-0 28447-4 0 9992
2 12504 82.9591 154.6600 0040809 119.4902 241.0334 13.74542138279897Epoch: 2026-11-14T06:34Z
TLE epoch observation values (Epoch: 2026-11-14T06:34:39.070Z)
Latitude
-0.00006°
Longitude
2.616°
Altitude
1,000.854 km
Speed
7.344 km/s
True Right ascension
10h 18m 38s
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
19:50:29
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
1,010.488 km
Perigee altitude
950.428 km
Semi-major axis
7,358.595 km
Eccentricity
0.00408
Inclination
82.9591°
RAAN
154.66°
Arg. of periapsis
119.4902°
True anomaly
240.62528°
Mean anomaly
241.0334°
Eccentric anomaly
240.82924°
Mean motion
3.43836 °/min
Orbital period
104.7 mins
BSTAR
0.000028447
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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 | 2026-11-15 00:37:41.783Z | 5.864° NNE | 2026-11-15 00:42:41.783Z | 66.725° ENE | 47.876° | 2026-11-15 00:48:41.783Z | 151.715° SSE |
| 8 mins | 2026-11-15 02:24:41.783Z | 317.151° NNW | 2026-11-15 02:28:41.783Z | 268.475° W | 22.977° | 2026-11-15 02:32:41.783Z | 226.719° WSW |
| 5 mins | 2026-11-15 12:26:41.783Z | 99.875° ESE | 2026-11-15 12:28:41.783Z | 78.034° E | 15.821° | 2026-11-15 12:31:41.783Z | 48.157° ENE |
| 10 mins | 2026-11-15 14:08:41.783Z | 196.399° SSW | 2026-11-15 14:13:41.783Z | 312.122° NW | 68.432° | 2026-11-15 14:18:41.783Z | 1.839° 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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