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 26152.46316216 .00000015 00000-0 22312-4 0 9998
2 20735 82.5657 282.2983 0015357 100.4751 325.6073 12.65365870653941Epoch: 2026-06-01T11:06Z
TLE epoch observation values (Epoch: 2026-06-01T11:06:57.210Z)
Latitude
65.00492°
Longitude
-118.21912°
Altitude
1,402.209 km
Speed
7.169 km/s
True Right ascension
19h 53m 52s
True Declination
64° 53' 02"
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
03:33:27
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
1,410.134 km
Perigee altitude
1,386.25 km
Semi-major axis
7,776.329 km
Eccentricity
0.00154
Inclination
82.5657°
RAAN
282.2983°
Arg. of periapsis
100.4751°
True anomaly
325.50774°
Mean anomaly
325.6073°
Eccentric anomaly
325.55754°
Mean motion
3.16505 °/min
Orbital period
113.74 mins
BSTAR
0.000022312
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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 | 2026-06-02 19:38:04.959Z | 5.917° NNE | 2026-06-02 19:45:04.959Z | 72.788° E | 35.344° | 2026-06-02 19:52:04.959Z | 143.613° SSE |
| 12 mins | 2026-06-02 21:34:04.959Z | 329.676° NNW | 2026-06-02 21:40:04.959Z | 268.583° W | 30.533° | 2026-06-02 21:46:04.959Z | 214.991° SW |
| 13 mins | 2026-06-03 08:25:04.959Z | 151.838° SSE | 2026-06-03 08:31:04.959Z | 92.577° ESE | 34.797° | 2026-06-03 08:38:04.959Z | 22.699° NE |
| 13 mins | 2026-06-03 10:20:04.959Z | 227.341° WSW | 2026-06-03 10:26:04.959Z | 286.842° WNW | 31.347° | 2026-06-03 10:33:04.959Z | 350.971° 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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