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: 16 hours ago
TLE from 16 hours ago
0 COSMOS 1275
1 12504U 81053A 26296.07224712 .00000054 00000-0 40831-4 0 9998
2 12504 82.9625 171.0480 0039537 180.4709 179.6416 13.74540707276842Epoch: 2026-10-23T01:44Z
TLE epoch observation values (Epoch: 2026-10-23T01:44:02.151Z)
Latitude
-0.00007°
Longitude
113.54099°
Altitude
1,015.324 km
Speed
7.33 km/s
True Right ascension
11h 24m 11s
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
12:45:10
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
1,009.557 km
Perigee altitude
951.369 km
Semi-major axis
7,358.6 km
Eccentricity
0.00395
Inclination
82.9625°
RAAN
171.048°
Arg. of periapsis
180.4709°
True anomaly
179.64442°
Mean anomaly
179.6416°
Eccentric anomaly
179.64301°
Mean motion
3.43835 °/min
Orbital period
104.7 mins
BSTAR
0.000040831
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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. |
|---|---|---|---|---|---|---|---|
| 8 mins | 2026-10-23 17:37:03.245Z | 246.183° WSW | 2026-10-23 17:40:03.245Z | 289.448° WNW | 30.086° | 2026-10-23 17:45:03.245Z | 344.658° N |
| 9 mins | 2026-10-24 02:48:03.245Z | 23.619° NE | 2026-10-24 02:52:03.245Z | 81.198° E | 32.091° | 2026-10-24 02:57:03.245Z | 136.573° SSE |
| 9 mins | 2026-10-24 04:33:03.245Z | 328.344° NNW | 2026-10-24 04:37:03.245Z | 275.15° WNW | 35.345° | 2026-10-24 04:42:03.245Z | 211.502° SW |
| 11 mins | 2026-10-24 16:17:03.245Z | 177.673° S | 2026-10-24 16:22:03.245Z | 70.546° E | 76.004° | 2026-10-24 16:28:03.245Z | 10.18° NNE |
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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