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: 8 hours ago
TLE from 8 hours ago
0 COSMOS 1275
1 12504U 81053A 26147.64760871 .00000051 00000-0 37769-4 0 9990
2 12504 82.9595 280.6221 0038612 235.0093 124.7436 13.74532004256453Epoch: 2026-05-27T15:32Z
TLE epoch observation values (Epoch: 2026-05-27T15:32:33.392Z)
Latitude
-0.00002°
Longitude
162.27927°
Altitude
1,002.521 km
Speed
7.342 km/s
True Right ascension
18h 42m 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
08:31:16
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
1,008.907 km
Perigee altitude
952.081 km
Semi-major axis
7,358.631 km
Eccentricity
0.00386
Inclination
82.9595°
RAAN
280.6221°
Arg. of periapsis
235.0093°
True anomaly
125.10617°
Mean anomaly
124.7436°
Eccentric anomaly
124.92499°
Mean motion
3.43833 °/min
Orbital period
104.7 mins
BSTAR
0.000037769
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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 | 2026-05-28 09:06:40.532Z | 165.861° S | 2026-05-28 09:12:40.532Z | 83.233° E | 39.098° | 2026-05-28 09:17:40.532Z | 18.711° NNE |
| 8 mins | 2026-05-28 10:54:40.532Z | 247.462° WSW | 2026-05-28 10:58:40.532Z | 293.736° NW | 21.239° | 2026-05-28 11:02:40.532Z | 336.003° NNW |
| 10 mins | 2026-05-28 20:05:40.532Z | 11.982° NNE | 2026-05-28 20:10:40.532Z | 88.938° E | 34.37° | 2026-05-28 20:15:40.532Z | 146.902° SSE |
| 8 mins | 2026-05-28 21:51:40.532Z | 320.655° NNW | 2026-05-28 21:55:40.532Z | 271.189° WNW | 24.189° | 2026-05-28 21:59:40.532Z | 225.23° 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 descending order |
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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings
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