COSMOS 2091, 20736
Orbit data source: Space-Track
COSMOS 2091, 20736 is a payload satellite owned by UNKS (CIS) in LEO that was launched on Wed, 08 Aug 1990 UTC via a TSIKLON-3 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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20736 intel report (Beta)
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Edit Public Description
Identifier
Orbit
Country
CISRelated business
Manufacturer
NPO PM
Mission
Defense Communications
Bus & Motor
STRELA-3, Unknown motor
Mass
225 kg wet, 225 kg dry
Launch date (UTC)
Launch vehicle
Launch site
Object type
Shape & HBR
Cyl, 0.8 m
Radar Cross Section
1.257 m², Large (>1 m²)
Expand to show TLE details & historyLast TLE update: 16 hours ago
TLE from 16 hours ago
0 COSMOS 2091
1 20736U 90070B 25306.47507796 .00000043 00000-0 17942-3 0 9998
2 20736 82.5736 112.9204 0002697 260.5659 153.4292 12.62553490623708Epoch: 2025-11-02T11:24Z
TLE epoch observation values (Epoch: 2025-11-02T11:24:06.735Z)
Latitude
53.44434°
Longitude
-90.02349°
Altitude
1,422.985 km
Speed
7.153 km/s
True Right ascension
08h 11m 58s
True Declination
53° 17' 37"
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
22:56:29
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
1,411.843 km
Perigee altitude
1,407.643 km
Semi-major axis
7,787.88 km
Eccentricity
0.00027
Inclination
82.5736°
RAAN
112.9204°
Arg. of periapsis
260.5659°
True anomaly
153.44302°
Mean anomaly
153.4292°
Eccentric anomaly
153.43611°
Mean motion
3.15802 °/min
Orbital period
114 mins
BSTAR
0.00017942
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Other satellites on launch #70 in the year 1990 (1990-08-08 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 2091 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 | 2025-11-03 10:05:25.048Z | 108.831° ESE | 2025-11-03 10:09:25.048Z | 78.157° E | 15.969° | 2025-11-03 10:13:25.048Z | 47.272° ENE |
| 15 mins | 2025-11-03 11:56:25.048Z | 185.747° SSW | 2025-11-03 12:03:25.048Z | 353.504° N | 44.95° | 2025-11-03 12:11:25.048Z | 7.606° NNE |
| 9 mins | 2025-11-03 13:55:25.048Z | 265.183° W | 2025-11-03 13:59:25.048Z | 296.988° NW | 16.813° | 2025-11-03 14:04:25.048Z | 335.092° NNW |
| 13 mins | 2025-11-03 21:58:25.048Z | 13.473° NNE | 2025-11-03 22:04:25.048Z | 72.002° E | 31.162° | 2025-11-03 22:11:25.048Z | 135.88° SSE |
| 13 mins | 2025-11-03 23:53:25.048Z | 335.213° NNW | 2025-11-03 23:59:25.048Z | 273.664° WNW | 35.324° | 2025-11-04 00:06:25.048Z | 205.444° 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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