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: 18 hours ago
TLE from 18 hours ago
0 COSMOS 1275
1 12504U 81053A 25260.99997781 .00000069 00000-0 56612-4 0 9992
2 12504 82.9566 106.4503 0038869 216.4983 143.3523 13.74506754221880Epoch: 2025-09-17T23:59Z
TLE epoch observation values (Epoch: 2025-09-17T23:59:58.082Z)
Latitude
-0.00004°
Longitude
109.29042°
Altitude
1,009.336 km
Speed
7.336 km/s
True Right ascension
07h 05m 48s
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
10:26:47
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
1,009.187 km
Perigee altitude
951.982 km
Semi-major axis
7,358.721 km
Eccentricity
0.00389
Inclination
82.9566°
RAAN
106.4503°
Arg. of periapsis
216.4983°
True anomaly
143.61713°
Mean anomaly
143.3523°
Eccentric anomaly
143.48482°
Mean motion
3.43827 °/min
Orbital period
104.7 mins
BSTAR
0.000056612
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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 | 2025-09-19 01:02:41.837Z | 7.916° NNE | 2025-09-19 01:07:41.837Z | 69.298° E | 34.947° | 2025-09-19 01:13:41.837Z | 148.704° SSE |
| 8 mins | 2025-09-19 02:49:41.837Z | 318.296° NNW | 2025-09-19 02:53:41.837Z | 267.433° W | 23.376° | 2025-09-19 02:57:41.837Z | 224.158° SW |
| 4 mins | 2025-09-19 12:51:41.837Z | 96.13° ESE | 2025-09-19 12:53:41.837Z | 75.382° E | 14.233° | 2025-09-19 12:55:41.837Z | 55.711° ENE |
| 11 mins | 2025-09-19 14:32:41.837Z | 191.069° SSW | 2025-09-19 14:37:41.837Z | 248.41° W | 44.358° | 2025-09-19 14:43:41.837Z | 4.14° 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 ascending order |
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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings
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