COSMOS 1998, 19789
Orbit data source: Space-Track
COSMOS 1998, 19789 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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19789 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, Large (>1 m²)
Expand to show TLE details & historyLast TLE update: 6 hours ago
TLE from 6 hours ago
0 COSMOS 1998
1 19789U 89009E 26046.50448093 .00000031 00000-0 11017-3 0 9998
2 19789 82.6081 49.1664 0015616 194.1196 165.9462 12.64930684708631Epoch: 2026-02-15T12:06Z
TLE epoch observation values (Epoch: 2026-02-15T12:06:27.152Z)
Latitude
-0.00004°
Longitude
82.04103°
Altitude
1,417.183 km
Speed
7.147 km/s
True Right ascension
03h 16m 39s
True Declination
0° 00' 00"
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
20:22:03
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
1,412.121 km
Perigee altitude
1,387.828 km
Semi-major axis
7,778.112 km
Eccentricity
0.00156
Inclination
82.6081°
RAAN
49.1664°
Arg. of periapsis
194.1196°
True anomaly
165.98957°
Mean anomaly
165.9462°
Eccentric anomaly
165.96789°
Mean motion
3.16397 °/min
Orbital period
113.78 mins
BSTAR
0.00011017
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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 1998 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. |
|---|---|---|---|---|---|---|---|
| 14 mins | 2026-02-15 23:35:33.986Z | 142.174° SSE | 2026-02-15 23:42:33.986Z | 84.408° E | 27.64° | 2026-02-15 23:49:33.986Z | 26.617° NE |
| 14 mins | 2026-02-16 01:30:33.986Z | 212.192° SW | 2026-02-16 01:36:33.986Z | 274.889° WNW | 38.341° | 2026-02-16 01:44:33.986Z | 357.606° N |
| 14 mins | 2026-02-16 11:30:33.986Z | 1.236° NNE | 2026-02-16 11:37:33.986Z | 92.429° ESE | 41.689° | 2026-02-16 11:44:33.986Z | 158.895° S |
| 10 mins | 2026-02-16 13:26:33.986Z | 319.84° NNW | 2026-02-16 13:31:33.986Z | 274.575° WNW | 23.072° | 2026-02-16 13:36:33.986Z | 232.361° 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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