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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19790 intel report (Beta)
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Edit Public Description
Identifier
Orbit
Country
CISRelated business
Manufacturer
NPO PM
Mission
Defense Communications
Bus & Motor
STRELA-3, Unknown motor
Mass
225 kg wet, 225 kg dry
Launch date (UTC)
Launch vehicle
Launch site
Object type
Shape & HBR
Cyl, 0.8 m
Radar Cross Section
1.257 m², Medium (>0.1 m² and < 1m²)
Expand to show TLE details & historyLast TLE update: 21 hours ago
TLE from 21 hours ago
0 COSMOS 1999
1 19790U 89009F 25356.52142656 .00000042 00000-0 16912-3 0 9992
2 19790 82.6185 79.5841 0018540 264.8024 105.9357 12.65745018702903Epoch: 2025-12-22T12:30Z
TLE epoch observation values (Epoch: 2025-12-22T12:30:51.254Z)
Latitude
10.80369°
Longitude
161.96179°
Altitude
1,405.294 km
Speed
7.156 km/s
True Right ascension
05h 23m 58s
True Declination
10° 44' 45"
Sunlit
Visualization orbit readout
Latitude
Unknown
Longitude
Unknown
Altitude
Unknown
Speed
Unknown
Apparent Right ascension
Unknown
Apparent Declination
Unknown
Sunlit
Visualization observer readout
Local Sidereal Time
08:34:02
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
1,411.05 km
Perigee altitude
1,382.221 km
Semi-major axis
7,774.773 km
Eccentricity
0.00185
Inclination
82.6185°
RAAN
79.5841°
Arg. of periapsis
264.8024°
True anomaly
106.13986°
Mean anomaly
105.9357°
Eccentric anomaly
106.03779°
Mean motion
3.16601 °/min
Orbital period
113.71 mins
BSTAR
0.00016912
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Other satellites on launch #9 in the year 1989 (1989-02-10 UTC)
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You can import UDL-sourced sensor .json files into the Sandbox to generate a visibility chart that accounts for multi-vendor sensor geometry.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. |
|---|---|---|---|---|---|---|---|
| 9 mins | 2025-12-23 15:38:48.653Z | 29.296° NE | 2025-12-23 15:42:48.653Z | 60.281° ENE | 16.509° | 2025-12-23 15:47:48.653Z | 99.064° ESE |
| 15 mins | 2025-12-23 17:31:48.653Z | 353.019° N | 2025-12-23 17:38:48.653Z | 19.958° NNE | 44.923° | 2025-12-23 17:46:48.653Z | 173.844° S |
| 8 mins | 2025-12-23 19:28:48.653Z | 311.256° NW | 2025-12-23 19:32:48.653Z | 279.592° WNW | 16.208° | 2025-12-23 19:36:48.653Z | 249.144° W |
| 7 mins | 2025-12-24 04:27:48.653Z | 101.027° ESE | 2025-12-24 04:30:48.653Z | 77.657° E | 15.086° | 2025-12-24 04:34:48.653Z | 47.389° ENE |
| 14 mins | 2025-12-24 06:17:48.653Z | 183.405° SSW | 2025-12-24 06:23:48.653Z | 165.813° S | 44.687° | 2025-12-24 06:31:48.653Z | 8.323° NNE |
| 9 mins | 2025-12-24 08:15:48.653Z | 261.801° W | 2025-12-24 08:19:48.653Z | 293.781° NW | 17.678° | 2025-12-24 08:24:48.653Z | 333.446° NNW |
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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