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COSMOS 1989 (ETALON 1), 19751

Orbit data source: Space-Track

COSMOS 1989 (ETALON 1), 19751 is a payload satellite owned by NPO PM (CIS) in MEO that was launched on Tue, 10 Jan 1989 UTC via a PROTON-K/DM-2 launch vehicle from the Tyuratam Missile And Space Complex (TTMTR). 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/19751?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

19751, 1989-001C

Orbit

MEO

Last TLE update

17 hours ago

Origin

Federal Space Agency of Russia (Roscosmos) (CIS)

Manufacturer

OAZ?

Mission

Operational Defense Geodetic

Bus & Motor

ETALON, Unknown motor

Mass

1,230 kg wet, 1,230 kg dry

Launch date (UTC)

1989-01-10 (36 years ago)

Launch vehicle

PROTON-K/DM-2

Launch site

Tyuratam Missile And Space Complex (TTMTR)

Object type

Payload

Rocket body

Debris

Shape & HBR

Sphere, 1.29 m

Radar Cross Section

1.307 m², Large (>1 m²)

Expand to show TLE details & history

TLE from 17 hours ago

0 COSMOS 1989 (ETALON 1)
1 19751U 89001C   25182.53689852 -.00000040  00000-0  00000-0 0  9990
2 19751  64.7417  84.2058 0023457 216.8803 313.3257  2.13156147283894

Epoch: 2025-07-01T12:53Z

TLE epoch observation values (Epoch: 2025-07-01T12:53:08.032Z)

Latitude

9.02347°

Longitude

146.8165°

Altitude

19,084.444 km

Speed

3.96 km/s

True Right ascension

17h 19m 43s

True Declination

9° 00' 31"

Sunlit

Object was in daylight at epoch

Visualization orbit readout

Latitude

-1.85654°

Longitude

-29.7962°

Altitude

19,172.938 km

Speed

3.946 km/s

Apparent Right ascension

05h 34m 44s

Apparent Declination

-9° 08' 30"

Sunlit

Object is in daylight

Visualization observer readout

Local Sidereal Time

17:42:25

Azimuth

3.704° NNE

Elevation

-59.178°

Doppler factor

Orbital elements

Apogee altitude

19,185.014 km

Perigee altitude

19,065.368 km

Semi-major axis

25,503.328 km

Eccentricity

0.00235

Inclination

64.7417°

RAAN

84.2058°

Arg. of periapsis

216.8803°

True anomaly

Unknown

Mean anomaly

313.3257°

Eccentric anomaly

Unknown

Mean motion

0.5329 °/min

Orbital period

675.55 mins

BSTAR

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Other satellites on launch #1 in the year 1989 (1989-01-10 UTC)

COSMOS 1987 (GLONASS), 19749

COSMOS 1988 (GLONASS), 19750

SL-12 R/B(1), 19752 (Decayed)

SL-12 DEB, 19753

SL-12 R/B(2), 19754

SL-12 R/B(AUX MOTOR), 19755

SL-12 R/B(AUX MOTOR), 19856

SL-12 DEB, 25797 (Decayed)

SL-12 DEB, 25798

SL-12 DEB, 25799 (Decayed)

SL-12 DEB, 26046 (Decayed)

SL-12 DEB, 26047 (Decayed)

SL-12 DEB, 26813

SL-12 DEB, 26814 (Decayed)

COSMOS 1989 (ETALON 1) 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.
67 mins	2025-07-02 09:13:45.966Z	333.31° NNW	2025-07-02 09:46:45.966Z	317.794° NNW	12.821°	2025-07-02 10:20:45.966Z	301.198° NW
285 mins	2025-07-02 16:28:45.966Z	171.241° S	2025-07-02 18:42:45.966Z	95.243° ESE	44.545°	2025-07-02 21:13:45.966Z	46.183° ENE

Authenticating...

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Check out COSMOS 1989 (ETALON 1), 19751 on other resources

View COSMOS 1989 (ETALON 1), 19751 on NASA - NSSDCA Website

View COSMOS 1989 (ETALON 1), 19751 on Heavens-Above

View COSMOS 1989 (ETALON 1), 19751 on Keep Track

View COSMOS 1989 (ETALON 1), 19751 on Celestrak

View COSMOS 1989 (ETALON 1), 19751 on Gunter's Space Page

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