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COSMOS 2091, 20736

Orbit data source: Space-Track

COSMOS 2091, 20736 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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<iframe src="https://www.satcat.com/sats-embedded/20736?theme=dark&initialShowStats=false" width="600" height="400" frameborder="0" title="Kayhan Space Satcat Satellite Viewer"></iframe>

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https://www.satcat.com/sats-embedded/20736?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

20736, 1990-070B

Orbit

LEO

Last TLE update

11 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 11 hours ago

0 COSMOS 2091
1 20736U 90070B   25128.74450720  .00000003  00000-0 -42576-4 0  9993
2 20736  82.5797 226.3505 0002367 315.7581 163.6104 12.62547693601271

Epoch: 2025-05-08T17:52Z

Definitive object data (Epoch: 2025-05-08T17:52:05.422Z)

Latitude

59.87071°

Longitude

-101.38564°

Altitude

1,424.348 km

Speed

7.153 km/s

True Right ascension

02h 13m 47s

True Declination

59° 44' 02"

Sunlit

Object was in daylight at TLE epoch

Visualization TLE readout

Latitude

70.13489°

Longitude

112.24011°

Altitude

1,425.382 km

Speed

7.154 km/s

Apparent Right ascension

23h 00m 08s

Apparent Declination

40° 46' 49"

Sunlit

Object is in daylight

Visualization observer readout

Local Sidereal Time

13:10:10

Azimuth

24.076° NE

Elevation

-4.053°

Doppler factor

Orbital elements

Apogee altitude

1,411.61 km

Perigee altitude

1,407.923 km

Semi-major axis

7,787.904 km

Eccentricity

0.0002367

Inclination

82.5797°

RAAN

226.3505°

Arg. of periapsis

315.7581°

True anomaly

163.61805°

Mean anomaly

163.6104°

Eccentric anomaly

163.61423°

Mean motion

3.158 °/min

BSTAR

-0.000042576

Orbital period

114 mins

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

COSMOS 2091 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	2025-05-09 06:38:33.843Z	164.225° S	2025-05-09 06:45:33.843Z	93.969° ESE	39.912°	2025-05-09 06:53:33.843Z	16.061° NNE
12 mins	2025-05-09 08:35:33.843Z	239.394° WSW	2025-05-09 08:40:33.843Z	284.047° WNW	26.23°	2025-05-09 08:47:33.843Z	345.956° N
10 mins	2025-05-09 16:41:33.843Z	26.278° NE	2025-05-09 16:46:33.843Z	69.309° E	20.861°	2025-05-09 16:51:33.843Z	110.022° ESE
14 mins	2025-05-09 18:35:33.843Z	347.349° N	2025-05-09 18:42:33.843Z	237.713° WSW	43.628°	2025-05-09 18:49:33.843Z	183.799° SSW

Authenticating...

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Check out COSMOS 2091, 20736 on other resources

View COSMOS 2091, 20736 on NASA - NSSDCA Website

View COSMOS 2091, 20736 on Heavens-Above

View COSMOS 2091, 20736 on Keep Track

View COSMOS 2091, 20736 on Celestrak

View COSMOS 2091, 20736 on Gunter's Space Page

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