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COSMOS 1999, 19790

Orbit data source: Space-Track

COSMOS 1999, 19790 is a payload satellite owned by UNKS (CIS) in LEO that was launched on Fri, 10 Feb 1989 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/19790?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/19790?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

19790, 1989-009F

Orbit

LEO

Country

CIS

Related business

Russian Space Forces (RU)

Manufacturer

NPO PM

Mission

Defense Communications

Bus & Motor

STRELA-3, Unknown motor

Mass

225 kg wet, 225 kg dry

Launch date (UTC)

1989-02-10 (38 years ago)

Launch vehicle

TSIKLON-3

Launch site

Plesetsk Missile And Space Complex (PKMTR)

Object type

Payload

Rocket body

Debris

Shape & HBR

Cyl, 0.9 m

Radar Cross Section

1.257 m², Large (>1 m²)

Expand to show TLE details & history
Last TLE update: 6 hours ago

TLE from 6 hours ago

0 COSMOS 1999
1 19790U 89009F   26317.29631222  .00000043  00000-0  17342-3 0  9995
2 19790  82.6197 231.4793 0018414 241.9013 283.6504 12.65753541744112

Epoch: 2026-11-13T07:06Z

TLE epoch observation values (Epoch: 2026-11-13T07:06:41.375Z)

Latitude

14.5032°

Longitude

-109.52118°

Altitude

1,397.96 km

Speed

7.164 km/s

True Right ascension

03h 18m 16s

True Declination

14° 25' 37"

Sunlit

Object was in full shadow at epoch

Visualization orbit readout

Latitude

Unknown

Longitude

Unknown

Altitude

Unknown

Speed

Unknown

Apparent Right ascension

Unknown

Apparent Declination

Unknown

Sunlit

N/A

Visualization observer readout

Local Sidereal Time

09:53:13

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

1,410.917 km

Perigee altitude

1,382.284 km

Semi-major axis

7,774.738 km

Eccentricity

0.00184

Inclination

82.6197°

RAAN

231.4793°

Arg. of periapsis

241.9013°

True anomaly

283.44524°

Mean anomaly

283.6504°

Eccentric anomaly

283.54783°

Mean motion

3.16603 °/min

Orbital period

113.71 mins

BSTAR

0.00017342

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Other satellites on launch #9 in the year 1989 (1989-02-10 UTC)

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COSMOS 1999 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.
12 mins	2026-11-13 17:43:59.383Z	131.153° SE	2026-11-13 17:49:59.383Z	82.789° E	25.387°	2026-11-13 17:55:59.383Z	33.558° NE
15 mins	2026-11-13 19:36:59.383Z	201.327° SSW	2026-11-13 19:43:59.383Z	278.665° WNW	64.439°	2026-11-13 19:51:59.383Z	1.401° NNE
15 mins	2026-11-14 05:36:59.383Z	4.314° NNE	2026-11-14 05:43:59.383Z	75.487° E	51.556°	2026-11-14 05:51:59.383Z	151.637° SSE
12 mins	2026-11-14 07:32:59.383Z	326.199° NNW	2026-11-14 07:37:59.383Z	279.937° WNW	31.931°	2026-11-14 07:44:59.383Z	218.541° SW

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Co-orbital & Co-planar RSOs

Thresholds — Semi-major Axis: ±100 km, RAAN: ±3°, Inclination: ±5°
TCA is derived from TLE conjunctions

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Check out COSMOS 1999, 19790 on other resources

View COSMOS 1999, 19790 on NASA - NSSDCA Website

View COSMOS 1999, 19790 on Heavens-Above

View COSMOS 1999, 19790 on Keep Track

View COSMOS 1999, 19790 on Celestrak

View COSMOS 1999, 19790 on Gunter's Space Page

Satcat and Kayhan Space are not affiliated with NASA, Celestrak, Heavens-Above, Keep Track, or Gunter's Space Page.

COSMOS 1999, 19790

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 6 hours ago

TLE from 6 hours ago

TLE epoch observation values (Epoch: 2026-11-13T07:06:41.375Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

Other satellites on launch #9 in the year 1989 (1989-02-10 UTC)

COSMOS 1999 Visibility forecast

Co-orbital & Co-planar RSOs

Check out COSMOS 1999, 19790 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 6 hours ago