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COSMOS 1987 (GLONASS), 19749

Orbit data source: Space-Track

COSMOS 1987 (GLONASS), 19749 is a payload satellite owned by UNKS (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/19749?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

19749, 1989-001A

Orbit

MEO

Country

CIS

Related business

Russian Space Forces (RU)

Manufacturer

Omsk Av. Zav.

Mission

Non-operational Defense Navigation

Bus & Motor

URAGAN, Unknown motor

Mass

1,300 kg wet, ~1,200 kg dry

Launch date (UTC)

1989-01-10 (38 years ago)

Launch vehicle

PROTON-K/DM-2

Launch site

Tyuratam Missile And Space Complex (TTMTR)

Object type

Payload

Rocket body

Debris

Shape & HBR

Cyl + 2 Pan, 4.2 m

Radar Cross Section

14.707 m², Large (>1 m²)

Expand to show TLE details & history
Last TLE update: 9 hours ago

TLE from 9 hours ago

0 COSMOS 1987 (GLONASS)
1 19749U 89001A   26254.12467712  .00000008  00000-0  00000-0 0  9995
2 19749  64.9902  69.3568 0004720 233.6748 321.7221  2.13073097293122

Epoch: 2026-09-11T02:59Z

TLE epoch observation values (Epoch: 2026-09-11T02:59:32.103Z)

Latitude

-13.93184°

Longitude

-139.04787°

Altitude

19,126.305 km

Speed

3.954 km/s

True Right ascension

17h 03m 57s

True Declination

-13° 54' 34"

Sunlit

Object was in daylight 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

04:28:24

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

19,143.85 km

Perigee altitude

19,119.769 km

Semi-major axis

25,509.946 km

Eccentricity

0.00047

Inclination

64.9902°

RAAN

69.3568°

Arg. of periapsis

233.6748°

True anomaly

321.68858°

Mean anomaly

321.7221°

Eccentric anomaly

321.70534°

Mean motion

0.5327 °/min

Orbital period

675.81 mins

BSTAR

Loading maneuver chart data...

Computing Atmospheric mass density...

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

SL-12 DEB, 28260 (Decayed)

SL-12 DEB, 28258 (Decayed)

SL-12 DEB, 28259 (Decayed)

SL-12 DEB, 36883 (Decayed)

SL-12 DEB, 25797 (Decayed)

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

SL-12 DEB, 25799 (Decayed)

SL-12 DEB, 26046 (Decayed)

SL-12 DEB, 28257 (Decayed)

SL-12 DEB, 26814 (Decayed)

SL-12 DEB, 26047 (Decayed)

SL-12 DEB, 38556 (Decayed)

COSMOS 1989 (ETALON 1), 19751

SL-12 DEB, 25798

SL-12 DEB, 43334

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COSMOS 1987 (GLONASS) 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.
279 mins	2026-09-11 21:14:46.546Z	317.005° NNW	2026-09-11 23:40:46.546Z	267.201° W	75.893°	2026-09-12 01:53:46.546Z	192.697° SSW
92 mins	2026-09-12 07:46:46.546Z	68.136° E	2026-09-12 08:32:46.546Z	45.503° ENE	15.73°	2026-09-12 09:18:46.546Z	24.122° NE

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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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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings

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Check out COSMOS 1987 (GLONASS), 19749 on other resources

View COSMOS 1987 (GLONASS), 19749 on NASA - NSSDCA Website

View COSMOS 1987 (GLONASS), 19749 on Heavens-Above

View COSMOS 1987 (GLONASS), 19749 on Keep Track

View COSMOS 1987 (GLONASS), 19749 on Celestrak

View COSMOS 1987 (GLONASS), 19749 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 1987 (GLONASS), 19749

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 9 hours ago

TLE from 9 hours ago

TLE epoch observation values (Epoch: 2026-09-11T02:59:32.103Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

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

COSMOS 1987 (GLONASS) Visibility forecast

Co-orbital & Co-planar RSOs

Check out COSMOS 1987 (GLONASS), 19749 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 9 hours ago