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COSMOS 2169, 21783

Orbit data source: Space-Track

COSMOS 2169, 21783 is a payload satellite owned by UNKS RF (CIS) in LEO that was launched on Tue, 12 Nov 1991 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/21783?theme=dark&initialShowStats=false

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Identifier

21783, 1991-077E

Orbit

LEO

Last TLE update

22 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)

1991-11-12 (33 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, Medium (>0.1 m² and < 1m²)

Expand to show TLE details & history

TLE from 22 hours ago

0 COSMOS 2169
1 21783U 91077E   25128.44194686  .00000031  00000-0  10669-3 0  9994
2 21783  82.5996 107.7954 0017881 171.0200 189.1217 12.66301756547564

Epoch: 2025-05-08T10:36Z

Definitive object data (Epoch: 2025-05-08T10:36:24.208Z)

Latitude

-0°

Longitude

82.18215°

Altitude

1,413.508 km

Speed

7.147 km/s

True Right ascension

07h 11m 10s

True Declination

0° 00' 00"

Sunlit

Object was in daylight at TLE epoch

Visualization TLE readout

Latitude

16.81407°

Longitude

-100.63593°

Altitude

1,385.337 km

Speed

7.174 km/s

Apparent Right ascension

21h 40m 26s

Apparent Declination

-21° 30' 15"

Sunlit

Object is in daylight

Visualization observer readout

Local Sidereal Time

16:28:32

Azimuth

114.021° SE

Elevation

-4.964°

Doppler factor

Orbital elements

Apogee altitude

1,408.254 km

Perigee altitude

1,380.458 km

Semi-major axis

7,772.493 km

Eccentricity

0.0017881

Inclination

82.5996°

RAAN

107.7954°

Arg. of periapsis

171.02°

True anomaly

189.08929°

Mean anomaly

189.1217°

Eccentric anomaly

189.10549°

Mean motion

3.1674 °/min

BSTAR

0.00010669

Orbital period

113.66 mins

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Other satellites on launch #77 in the year 1991 (1991-11-12 UTC)

COSMOS 2169 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 09:58:24.101Z	0.617° NNE	2025-05-09 10:05:24.101Z	73.745° E	41.298°	2025-05-09 10:13:24.101Z	158.54° S
11 mins	2025-05-09 11:54:24.101Z	322.886° NNW	2025-05-09 11:59:24.101Z	279.091° WNW	23.659°	2025-05-09 12:05:24.101Z	228.297° WSW
14 mins	2025-05-09 22:44:24.101Z	165.174° S	2025-05-09 22:50:24.101Z	101.866° ESE	40.91°	2025-05-09 22:58:24.101Z	15.325° NNE
12 mins	2025-05-10 00:40:24.101Z	241.689° WSW	2025-05-10 00:45:24.101Z	285.476° WNW	24.938°	2025-05-10 00:52:24.101Z	345.619° N

Authenticating...

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Check out COSMOS 2169, 21783 on other resources

View COSMOS 2169, 21783 on NASA - NSSDCA Website

View COSMOS 2169, 21783 on Heavens-Above

View COSMOS 2169, 21783 on Keep Track

View COSMOS 2169, 21783 on Celestrak

View COSMOS 2169, 21783 on Gunter's Space Page

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