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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Edit Public Description
Identifier
Orbit
Country
CISRelated business
Manufacturer
Omsk Av. Zav.
Mission
Defense Navigation
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, 2.5 m
Radar Cross Section
9.978 m², 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 25255.83155860 .00000034 00000-0 19861-4 0 9990
2 12504 82.9576 110.2680 0038628 231.2927 128.4773 13.74506323221171Epoch: 2025-09-12T19:57Z
TLE epoch observation values (Epoch: 2025-09-12T19:57:26.663Z)
Latitude
0.00003°
Longitude
178.83328°
Altitude
1,004.1 km
Speed
7.341 km/s
True Right ascension
07h 21m 04s
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
04:30:10
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
1,009.011 km
Perigee altitude
952.161 km
Semi-major axis
7,358.723 km
Eccentricity
0.00386
Inclination
82.9576°
RAAN
110.268°
Arg. of periapsis
231.2927°
True anomaly
128.82279°
Mean anomaly
128.4773°
Eccentric anomaly
128.65015°
Mean motion
3.43827 °/min
Orbital period
104.7 mins
BSTAR
0.000019861
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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. |
|---|---|---|---|---|---|---|---|
| 6 mins | 2025-09-13 13:34:43.432Z | 109.688° ESE | 2025-09-13 13:37:43.432Z | 79.483° E | 15.256° | 2025-09-13 13:40:43.432Z | 49.871° ENE |
| 11 mins | 2025-09-13 15:17:43.432Z | 194.467° SSW | 2025-09-13 15:22:43.432Z | 308.47° NW | 43.683° | 2025-09-13 15:28:43.432Z | 3.665° NNE |
| 10 mins | 2025-09-14 02:15:43.432Z | 353.451° N | 2025-09-14 02:20:43.432Z | 169.827° S | 44.555° | 2025-09-14 02:25:43.432Z | 174.38° 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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