COSMOS 2090, 20735
Orbit data source: Space-Track
COSMOS 2090, 20735 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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20735 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: 14 hours ago
TLE from 14 hours ago
0 COSMOS 2090
1 20735U 90070A 25336.23817559 .00000021 00000-0 55888-4 0 9993
2 20735 82.5687 38.7853 0015001 149.7066 274.0542 12.65358979631020Epoch: 2025-12-02T05:42Z
TLE epoch observation values (Epoch: 2025-12-02T05:42:58.370Z)
Latitude
62.72094°
Longitude
-103.7068°
Altitude
1,410.828 km
Speed
7.161 km/s
True Right ascension
03h 33m 27s
True Declination
62° 35' 33"
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
17:43:16
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
1,409.885 km
Perigee altitude
1,386.554 km
Semi-major axis
7,776.357 km
Eccentricity
0.0015
Inclination
82.5687°
RAAN
38.7853°
Arg. of periapsis
149.7066°
True anomaly
273.88271°
Mean anomaly
274.0542°
Eccentric anomaly
273.96846°
Mean motion
3.16504 °/min
Orbital period
113.74 mins
BSTAR
0.000055888
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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 2090 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 | 2025-12-03 04:14:06.624Z | 158.339° S | 2025-12-03 04:22:06.624Z | 82.348° E | 36.049° | 2025-12-03 04:29:06.624Z | 20.203° NNE |
| 12 mins | 2025-12-03 06:11:06.624Z | 232.015° WSW | 2025-12-03 06:17:06.624Z | 294.425° NW | 30.117° | 2025-12-03 06:23:06.624Z | 348.02° N |
| 8 mins | 2025-12-03 14:17:06.624Z | 34.948° NE | 2025-12-03 14:20:06.624Z | 59.36° ENE | 16.791° | 2025-12-03 14:25:06.624Z | 99.184° ESE |
| 14 mins | 2025-12-03 16:10:06.624Z | 352.407° N | 2025-12-03 16:16:06.624Z | 348.504° N | 44.845° | 2025-12-03 16:24:06.624Z | 175.088° S |
| 7 mins | 2025-12-03 18:07:06.624Z | 305.102° NW | 2025-12-03 18:10:06.624Z | 280.954° WNW | 15.369° | 2025-12-03 18:14:06.624Z | 250.59° W |
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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