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: 1 day ago
TLE from 1 day ago
0 COSMOS 2090
1 20735U 90070A 26215.82019197 .00000014 00000-0 17529-4 0 9999
2 20735 82.5622 241.5742 0013302 319.5991 213.6665 12.65367255661953Epoch: 2026-08-03T19:41Z
TLE epoch observation values (Epoch: 2026-08-03T19:41:04.586Z)
Latitude
6.69108°
Longitude
173.03407°
Altitude
1,411.604 km
Speed
7.151 km/s
True Right ascension
04h 02m 48s
True Declination
6° 39' 17"
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
11:44:54
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
1,408.53 km
Perigee altitude
1,387.842 km
Semi-major axis
7,776.323 km
Eccentricity
0.00133
Inclination
82.5622°
RAAN
241.5742°
Arg. of periapsis
319.5991°
True anomaly
213.58212°
Mean anomaly
213.6665°
Eccentric anomaly
213.6243°
Mean motion
3.16506 °/min
Orbital period
113.74 mins
BSTAR
0.000017529
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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. |
|---|---|---|---|---|---|---|---|
| 13 mins | 2026-08-05 01:14:29.572Z | 139.296° SSE | 2026-08-05 01:20:29.572Z | 86.869° E | 27.7° | 2026-08-05 01:27:29.572Z | 27.162° NE |
| 14 mins | 2026-08-05 03:08:29.572Z | 212.127° SW | 2026-08-05 03:14:29.572Z | 271.62° WNW | 37.924° | 2026-08-05 03:22:29.572Z | 357.151° N |
| 14 mins | 2026-08-05 13:08:29.572Z | 1.021° NNE | 2026-08-05 13:15:29.572Z | 93.76° ESE | 41.914° | 2026-08-05 13:22:29.572Z | 159.359° S |
| 10 mins | 2026-08-05 15:04:29.572Z | 319.094° NNW | 2026-08-05 15:09:29.572Z | 273.919° WNW | 23.002° | 2026-08-05 15:14:29.572Z | 232.439° WSW |
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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