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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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: 10 hours ago
TLE from 10 hours ago
0 COSMOS 1999
1 19790U 89009F 26136.11772644 .00000044 00000-0 17715-3 0 9994
2 19790 82.6195 347.2233 0018703 297.6420 183.6911 12.65749899721191Epoch: 2026-05-16T02:49Z
TLE epoch observation values (Epoch: 2026-05-16T02:49:31.564Z)
Latitude
57.99905°
Longitude
-120.90097°
Altitude
1,423.543 km
Speed
7.148 km/s
True Right ascension
10h 21m 16s
True Declination
57° 51' 27"
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
20:57:36
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
1,411.157 km
Perigee altitude
1,382.074 km
Semi-major axis
7,774.753 km
Eccentricity
0.00187
Inclination
82.6195°
RAAN
347.2233°
Arg. of periapsis
297.642°
True anomaly
183.67733°
Mean anomaly
183.6911°
Eccentric anomaly
183.68421°
Mean motion
3.16602 °/min
Orbital period
113.71 mins
BSTAR
0.00017715
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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. |
|---|---|---|---|---|---|---|---|
| 13 mins | 2026-05-16 13:40:09.578Z | 143.139° SSE | 2026-05-16 13:47:09.578Z | 79.341° E | 29.05° | 2026-05-16 13:53:09.578Z | 27.887° NE |
| 13 mins | 2026-05-16 15:35:09.578Z | 216.792° SW | 2026-05-16 15:41:09.578Z | 285.131° WNW | 36.927° | 2026-05-16 15:48:09.578Z | 354.804° N |
| 4 mins | 2026-05-16 23:43:09.578Z | 47.738° ENE | 2026-05-16 23:44:09.578Z | 55.135° ENE | 11.939° | 2026-05-16 23:47:09.578Z | 77.14° E |
| 15 mins | 2026-05-17 01:34:09.578Z | 359.374° N | 2026-05-17 01:41:09.578Z | 84.887° E | 42.834° | 2026-05-17 01:49:09.578Z | 162.701° S |
| 10 mins | 2026-05-17 03:30:09.578Z | 319.686° NNW | 2026-05-17 03:35:09.578Z | 276.482° WNW | 21.944° | 2026-05-17 03:40:09.578Z | 235.192° WSW |
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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