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, 8.5 m
Radar Cross Section
Large (>1 m²)
Expand to show TLE details & historyLast TLE update: 10 hours ago
TLE from 10 hours ago
0 COSMOS 1275
1 12504U 81053A 26237.69248522 .00000043 00000-0 29474-4 0 9994
2 12504 82.9591 214.1309 0039403 347.3076 12.7084 13.74537454268828Epoch: 2026-08-25T16:37Z
TLE epoch observation values (Epoch: 2026-08-25T16:37:10.723Z)
Latitude
-0.00003°
Longitude
-9.11996°
Altitude
957.929 km
Speed
7.387 km/s
True Right ascension
14h 16m 31s
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
18:03:47
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
1,009.47 km
Perigee altitude
951.479 km
Semi-major axis
7,358.612 km
Eccentricity
0.00394
Inclination
82.9591°
RAAN
214.1309°
Arg. of periapsis
347.3076°
True anomaly
12.80821°
Mean anomaly
12.7084°
Eccentric anomaly
12.75826°
Mean motion
3.43834 °/min
Orbital period
104.7 mins
BSTAR
0.000029474
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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. |
|---|---|---|---|---|---|---|---|
| 7 mins | 2026-08-26 08:56:46.302Z | 35.215° NE | 2026-08-26 08:59:46.302Z | 66.418° ENE | 16.82° | 2026-08-26 09:03:46.302Z | 106.734° ESE |
| 11 mins | 2026-08-26 10:40:46.302Z | 347.28° N | 2026-08-26 10:45:46.302Z | 288.014° WNW | 43.221° | 2026-08-26 10:51:46.302Z | 184.483° SSW |
| 9 mins | 2026-08-26 22:26:46.302Z | 145.691° SSE | 2026-08-26 22:30:46.302Z | 86.088° E | 31.854° | 2026-08-26 22:35:46.302Z | 25.09° NE |
| 8 mins | 2026-08-27 00:12:46.302Z | 238.696° WSW | 2026-08-27 00:15:46.302Z | 278.062° WNW | 26.345° | 2026-08-27 00:20:46.302Z | 341.54° 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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