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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 (37 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: 5 days ago

TLE from 5 days ago

0 COSMOS 1987 (GLONASS)
1 19749U 89001A   25346.19195191 -.00000039  00000-0  00000-0 0  9997
2 19749  64.8256  78.6886 0004952 232.9451 126.5097  2.13073215287306

Epoch: 2025-12-12T04:36Z

TLE epoch observation values (Epoch: 2025-12-12T04:36:24.645Z)

Latitude

-0.46775°

Longitude

-71.76589°

Altitude

19,140.34 km

Speed

3.952 km/s

True Right ascension

05h 13m 53s

True Declination

0° 28' 01"

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

02:42:41

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

19,144.438 km

Perigee altitude

19,119.173 km

Semi-major axis

25,509.943 km

Eccentricity

0.0005

Inclination

64.8256°

RAAN

78.6886°

Arg. of periapsis

232.9451°

True anomaly

126.55529°

Mean anomaly

126.5097°

Eccentric anomaly

126.5325°

Mean motion

0.5327 °/min

Orbital period

675.81 mins

BSTAR

0

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

SL-12 DEB, 28259 (Decayed)

SL-12 DEB, 26047 (Decayed)

SL-12 DEB, 25797 (Decayed)

COSMOS 1989 (ETALON 1), 19751

SL-12 DEB, 43334

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

COSMOS 1988 (GLONASS), 19750

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

SL-12 R/B(2), 19754

SL-12 DEB, 25799 (Decayed)

SL-12 DEB, 19753

SL-12 DEB, 36882

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

SL-12 DEB, 26046 (Decayed)

Did you know?

You can import UDL-sourced sensor .json files into the Sandbox to generate a visibility chart that accounts for multi-vendor sensor geometry.

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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.
360 mins	2025-12-17 07:51:00.721Z	211.047° SW	2025-12-17 10:24:00.721Z	314.424° NW	42.051°	2025-12-17 13:51:00.721Z	99.295° ESE

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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.

Documentation

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