COSMOS 531, 6266
Orbit data source: Space-Track
COSMOS 531, 6266 is a payload satellite owned by OKB-10 (CIS) in LEO that was launched on Wed, 01 Nov 1972 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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6266 intel report (Beta)
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Identifier
Orbit
Country
CISRelated business
Manufacturer
OKB-10
Mission
Spacecraft
Bus & Motor
STRELA-1 11F625, Unknown motor
Mass
60 kg wet, 60 kg dry
Launch date (UTC)
Launch vehicle
Launch site
Object type
Shape & HBR
Unknown
Radar Cross Section
Medium (>0.1 m² and <1 m²)
Expand to show TLE details & historyLast TLE update: 2 days ago
TLE from 2 days ago
0 COSMOS 531
1 6266U 72087D 26171.32914950 .00000001 00000-0 10750-3 0 9991
2 6266 74.0346 111.1132 0031580 278.1615 204.7932 12.54805287456669Epoch: 2026-06-20T07:53Z
TLE epoch observation values (Epoch: 2026-06-20T07:53:58.516Z)
Latitude
54.01084°
Longitude
-119.0048°
Altitude
1,475.382 km
Speed
7.12 km/s
True Right ascension
17h 52m 08s
True Declination
53° 51' 44"
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
23:08:12
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
1,466.986 km
Perigee altitude
1,417.592 km
Semi-major axis
7,820.426 km
Eccentricity
0.00316
Inclination
74.0346°
RAAN
111.1132°
Arg. of periapsis
278.1615°
True anomaly
204.64199°
Mean anomaly
204.7932°
Eccentric anomaly
204.71754°
Mean motion
3.13832 °/min
Orbital period
114.71 mins
BSTAR
0.0001075
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Other satellites on launch #87 in the year 1972 (1972-11-01 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 531 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. |
|---|---|---|---|---|---|---|---|
| 15 mins | 2026-06-22 20:33:55.499Z | 183.925° SSW | 2026-06-22 20:40:55.499Z | 115.779° SE | 43.131° | 2026-06-22 20:48:55.499Z | 24.309° NE |
| 12 mins | 2026-06-22 22:33:55.499Z | 259.673° W | 2026-06-22 22:38:55.499Z | 303.963° NW | 24.892° | 2026-06-22 22:45:55.499Z | 359.955° N |
| 8 mins | 2026-06-23 04:43:55.499Z | 21.901° NNE | 2026-06-23 04:46:55.499Z | 44.715° NE | 15.519° | 2026-06-23 04:51:55.499Z | 80.723° E |
| 15 mins | 2026-06-23 06:38:55.499Z | 347.259° N | 2026-06-23 06:45:55.499Z | 67.635° E | 43.165° | 2026-06-23 06:53:55.499Z | 151.276° SSE |
| 11 mins | 2026-06-23 08:36:55.499Z | 310.695° NW | 2026-06-23 08:41:55.499Z | 270.393° WNW | 22.569° | 2026-06-23 08:47:55.499Z | 221.757° SW |
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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