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: 15 hours ago
TLE from 15 hours ago
0 COSMOS 1275
1 12504U 81053A 26048.35772384 .00000042 00000-0 28277-4 0 9994
2 12504 82.9642 353.9392 0040278 151.2077 209.1314 13.74523959242818Epoch: 2026-02-17T08:35Z
TLE epoch observation values (Epoch: 2026-02-17T08:35:07.339Z)
Latitude
-0.00005°
Longitude
77.81974°
Altitude
1,012.207 km
Speed
7.333 km/s
True Right ascension
23h 35m 45s
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
02:30:41
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
1,010.162 km
Perigee altitude
950.883 km
Semi-major axis
7,358.66 km
Eccentricity
0.00403
Inclination
82.9642°
RAAN
353.9392°
Arg. of periapsis
151.2077°
True anomaly
208.90769°
Mean anomaly
209.1314°
Eccentric anomaly
209.01945°
Mean motion
3.43831 °/min
Orbital period
104.7 mins
BSTAR
0.000028277
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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 | 2026-02-18 07:52:19.747Z | 359.082° N | 2026-02-18 07:58:19.747Z | 83.336° E | 42.175° | 2026-02-18 08:03:19.747Z | 160.849° S |
| 5 mins | 2026-02-18 09:41:19.747Z | 299.016° NW | 2026-02-18 09:43:19.747Z | 276.016° WNW | 16.332° | 2026-02-18 09:46:19.747Z | 244.358° WSW |
| 7 mins | 2026-02-18 19:40:19.747Z | 118.839° SE | 2026-02-18 19:43:19.747Z | 83.84° E | 20.343° | 2026-02-18 19:47:19.747Z | 40.47° NE |
| 11 mins | 2026-02-18 21:23:19.747Z | 206.731° SW | 2026-02-18 21:28:19.747Z | 278.51° WNW | 39.101° | 2026-02-18 21:34:19.747Z | 357.457° N |
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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