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: 15 hours ago
TLE from 15 hours ago
0 COSMOS 2090
1 20735U 90070A 25322.24268269 .00000022 00000-0 60250-4 0 9997
2 20735 82.5694 47.7786 0014537 180.5413 241.5488 12.65358530629258Epoch: 2025-11-18T05:49Z
TLE epoch observation values (Epoch: 2025-11-18T05:49:27.784Z)
Latitude
61.14077°
Longitude
-83.49849°
Altitude
1,416.71 km
Speed
7.155 km/s
True Right ascension
04h 05m 35s
True Declination
61° 00' 27"
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
17:42:40
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
1,409.526 km
Perigee altitude
1,386.917 km
Semi-major axis
7,776.359 km
Eccentricity
0.00145
Inclination
82.5694°
RAAN
47.7786°
Arg. of periapsis
180.5413°
True anomaly
241.40246°
Mean anomaly
241.5488°
Eccentric anomaly
241.47562°
Mean motion
3.16504 °/min
Orbital period
113.74 mins
BSTAR
0.00006025
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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. |
|---|---|---|---|---|---|---|---|
| 4 mins | 2025-11-19 04:27:33.421Z | 89.105° E | 2025-11-19 04:29:33.421Z | 74.564° E | 11.471° | 2025-11-19 04:31:33.421Z | 60.027° ENE |
| 15 mins | 2025-11-19 06:15:33.421Z | 174.66° S | 2025-11-19 06:22:33.421Z | 100.714° ESE | 43.614° | 2025-11-19 06:30:33.421Z | 11.988° NNE |
| 10 mins | 2025-11-19 08:13:33.421Z | 253.08° W | 2025-11-19 08:18:33.421Z | 296.993° NW | 21.379° | 2025-11-19 08:23:33.421Z | 338.064° N |
| 12 mins | 2025-11-19 16:16:33.421Z | 18.304° NNE | 2025-11-19 16:22:33.421Z | 72.566° E | 25.105° | 2025-11-19 16:28:33.421Z | 123.143° SE |
| 14 mins | 2025-11-19 18:10:33.421Z | 343.086° N | 2025-11-19 18:17:33.421Z | 266.09° W | 40.729° | 2025-11-19 18:24:33.421Z | 193.664° SSW |
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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