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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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https://www.satcat.com/sats-embedded/20735?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

20735, 1990-070A

Orbit

LEO

Last TLE update

12 hours ago

Origin

Russian Space Forces (CIS)

Manufacturer

NPO PM

Mission

Defense Communications

Bus & Motor

STRELA-3, Unknown motor

Mass

225 kg wet, 225 kg dry

Launch date (UTC)

1990-08-08 (35 years ago)

Launch vehicle

TSIKLON-3

Launch site

Plesetsk Missile And Space Complex (PKMTR)

Object type

Payload

Rocket body

Debris

Shape & HBR

Cyl, 1.6 m

Radar Cross Section

1.257 m², Large (>1 m²)

Expand to show TLE details & history

TLE from 12 hours ago

0 COSMOS 2090
1 20735U 90070A   25191.85670546  .00000009  00000-0 -96515-5 0  9993
2 20735  82.5673 131.5931 0015202 118.0331 296.3885 12.65353033612764

Epoch: 2025-07-10T20:33Z

TLE epoch observation values (Epoch: 2025-07-10T20:33:39.351Z)

Latitude

53.69383°

Longitude

-95.66149°

Altitude

1,404.426 km

Speed

7.165 km/s

True Right ascension

09h 27m 04s

True Declination

53° 32' 36"

Sunlit

Object was in daylight at epoch

Visualization orbit readout

Latitude

82.32224°

Longitude

-31.79716°

Altitude

1,404.125 km

Speed

7.17 km/s

Apparent Right ascension

09h 10m 27s

Apparent Declination

34° 52' 58"

Sunlit

Object is in daylight

Visualization observer readout

Local Sidereal Time

20:24:55

Azimuth

350.375° N

Elevation

-14.468°

Doppler factor

Orbital elements

Apogee altitude

1,410.066 km

Perigee altitude

1,386.423 km

Semi-major axis

7,776.381 km

Eccentricity

0.00152

Inclination

82.5673°

RAAN

131.5931°

Arg. of periapsis

118.0331°

True anomaly

Unknown

Mean anomaly

296.3885°

Eccentric anomaly

Unknown

Mean motion

3.16502 °/min

Orbital period

113.74 mins

BSTAR

-0.0000096515

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Other satellites on launch #70 in the year 1990 (1990-08-08 UTC)

COSMOS 2090 Visibility forecast

Observer location: undefined°, undefined°

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.
15 mins	2025-07-11 08:16:26.070Z	346.53° N	2025-07-11 08:23:26.070Z	285.283° WNW	42.656°	2025-07-11 08:31:26.070Z	187.245° SSW
10 mins	2025-07-11 19:11:26.070Z	118.386° SE	2025-07-11 19:15:26.070Z	83.67° E	21.307°	2025-07-11 19:21:26.070Z	35.054° NE
15 mins	2025-07-11 21:02:26.070Z	197.849° SSW	2025-07-11 21:09:26.070Z	272.319° WNW	43.051°	2025-07-11 21:17:26.070Z	2.68° NNE
4 mins	2025-07-11 23:04:26.070Z	289.259° WNW	2025-07-11 23:06:26.070Z	304.335° NW	12.042°	2025-07-11 23:08:26.070Z	319.075° NNW
13 mins	2025-07-12 07:03:26.070Z	8.574° NNE	2025-07-12 07:09:26.070Z	73.403° E	36.504°	2025-07-12 07:16:26.070Z	145.899° SSE

Authenticating...

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Check out COSMOS 2090, 20735 on other resources

View COSMOS 2090, 20735 on NASA - NSSDCA Website

View COSMOS 2090, 20735 on Heavens-Above

View COSMOS 2090, 20735 on Keep Track

View COSMOS 2090, 20735 on Celestrak

View COSMOS 2090, 20735 on Gunter's Space Page

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