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, 8.5 m
Radar Cross Section
Large (>1 m²)
Expand to show TLE details & historyLast TLE update: 16 hours ago
TLE from 16 hours ago
0 COSMOS 1275
1 12504U 81053A 26206.31889447 .00000059 00000-0 45785-4 0 9996
2 12504 82.9576 237.3002 0041113 73.3626 287.2038 13.74535651264513Epoch: 2026-07-25T07:39Z
TLE epoch observation values (Epoch: 2026-07-25T07:39:12.482Z)
Latitude
0.00002°
Longitude
179.46531°
Altitude
977.392 km
Speed
7.367 km/s
True Right ascension
15h 49m 12s
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
13:08:26
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
1,010.735 km
Perigee altitude
950.228 km
Semi-major axis
7,358.618 km
Eccentricity
0.00411
Inclination
82.9576°
RAAN
237.3002°
Arg. of periapsis
73.3626°
True anomaly
286.75308°
Mean anomaly
287.2038°
Eccentric anomaly
286.97851°
Mean motion
3.43834 °/min
Orbital period
104.7 mins
BSTAR
0.000045785
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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. |
|---|---|---|---|---|---|---|---|
| 4 mins | 2026-07-26 01:17:06.462Z | 102.156° ESE | 2026-07-26 01:19:06.462Z | 81.626° E | 13.488° | 2026-07-26 01:21:06.462Z | 60.776° ENE |
| 10 mins | 2026-07-26 02:59:06.462Z | 191.933° SSW | 2026-07-26 03:04:06.462Z | 298.102° NW | 44.292° | 2026-07-26 03:09:06.462Z | 3.408° NNE |
| 10 mins | 2026-07-26 13:57:06.462Z | 355.131° N | 2026-07-26 14:01:06.462Z | 17.903° NNE | 44.342° | 2026-07-26 14:07:06.462Z | 172.221° S |
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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