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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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: 7 hours ago
TLE from 7 hours ago
0 COSMOS 2090
1 20735U 90070A 26065.26210621 .00000044 00000-0 17740-3 0 9992
2 20735 82.5720 338.3570 0013540 301.8935 174.8090 12.65362548642917Epoch: 2026-03-06T06:17Z
TLE epoch observation values (Epoch: 2026-03-06T06:17:25.976Z)
Latitude
62.42853°
Longitude
-114.38791°
Altitude
1,422.053 km
Speed
7.151 km/s
True Right ascension
09h 35m 53s
True Declination
62° 17' 57"
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
16:55:24
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
1,408.734 km
Perigee altitude
1,387.676 km
Semi-major axis
7,776.342 km
Eccentricity
0.00135
Inclination
82.572°
RAAN
338.357°
Arg. of periapsis
301.8935°
True anomaly
174.82301°
Mean anomaly
174.809°
Eccentric anomaly
174.81601°
Mean motion
3.16505 °/min
Orbital period
113.74 mins
BSTAR
0.0001774
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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. |
|---|---|---|---|---|---|---|---|
| 10 mins | 2026-03-06 17:11:47.234Z | 117.809° SE | 2026-03-06 17:16:47.234Z | 77.818° E | 18.655° | 2026-03-06 17:21:47.234Z | 39.129° NE |
| 14 mins | 2026-03-06 19:03:47.234Z | 192.598° SSW | 2026-03-06 19:10:47.234Z | 313.506° NW | 44.157° | 2026-03-06 19:17:47.234Z | 4.633° NNE |
| 6 mins | 2026-03-06 21:03:47.234Z | 277.936° WNW | 2026-03-06 21:06:47.234Z | 301.411° NW | 14.294° | 2026-03-06 21:09:47.234Z | 324.273° NNW |
| 14 mins | 2026-03-07 05:03:47.234Z | 9.298° NNE | 2026-03-07 05:10:47.234Z | 81.686° E | 33.724° | 2026-03-07 05:17:47.234Z | 142.357° SSE |
| 13 mins | 2026-03-07 06:58:47.234Z | 333.312° NNW | 2026-03-07 07:04:47.234Z | 276.116° WNW | 32.563° | 2026-03-07 07:11:47.234Z | 210.459° 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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