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: 2 days ago
TLE from 2 days ago
0 COSMOS 2090
1 20735U 90070A 26153.81788633 .00000021 00000-0 56404-4 0 9990
2 20735 82.5660 281.4275 0015366 97.5966 16.5976 12.65365864654115Epoch: 2026-06-02T19:37Z
TLE epoch observation values (Epoch: 2026-06-02T19:37:45.378Z)
Latitude
64.78883°
Longitude
-100.30513°
Altitude
1,400.565 km
Speed
7.171 km/s
True Right ascension
05h 41m 40s
True Declination
64° 40' 01"
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
22:27:44
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
1,410.141 km
Perigee altitude
1,386.243 km
Semi-major axis
7,776.329 km
Eccentricity
0.00154
Inclination
82.566°
RAAN
281.4275°
Arg. of periapsis
97.5966°
True anomaly
16.64799°
Mean anomaly
16.5976°
Eccentric anomaly
16.62279°
Mean motion
3.16505 °/min
Orbital period
113.74 mins
BSTAR
0.000056404
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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. |
|---|---|---|---|---|---|---|---|
| 14 mins | 2026-06-04 19:04:20.505Z | 10.491° NNE | 2026-06-04 19:11:20.505Z | 72.373° E | 28.969° | 2026-06-04 19:18:20.505Z | 133.049° SE |
| 13 mins | 2026-06-04 21:00:20.505Z | 336.4° NNW | 2026-06-04 21:06:20.505Z | 267.888° W | 37.181° | 2026-06-04 21:13:20.505Z | 200.941° SSW |
| 12 mins | 2026-06-05 07:52:20.505Z | 136.915° SSE | 2026-06-05 07:58:20.505Z | 78.305° E | 28.035° | 2026-06-05 08:04:20.505Z | 28.112° NE |
| 14 mins | 2026-06-05 09:45:20.505Z | 211.99° SW | 2026-06-05 09:52:20.505Z | 286.59° WNW | 37.617° | 2026-06-05 09:59:20.505Z | 355.829° N |
Co-orbital & Co-planar RSOs
Thresholds — Semi-major Axis: ±100 km, RAAN: ±3°, Inclination: ±5°
TCA is derived from TLE conjunctions
Click to sort rows by RSO header in ascending order | Click to sort rows by Country header in ascending order | Click to sort rows by Type header in ascending order | Click to sort rows by Inclination Δ header in ascending order | Click to sort rows by RAAN Δ header in ascending order | Click to sort rows by Coplanar Angle header in ascending order | Click to sort rows by SMA Δ header in ascending order | Click to sort rows by Orbital period header in ascending order | Click to sort rows by <5km Md TCA header in descending order |
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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings
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