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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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, Large (>1 m²)
Expand to show TLE details & historyLast TLE update: 15 hours ago
TLE from 15 hours ago
0 COSMOS 1998
1 19789U 89009E 25258.77111058 .00000007 00000-0 -18322-4 0 9990
2 19789 82.6134 146.6839 0015557 183.1219 176.9779 12.64923492689321Epoch: 2025-09-15T18:30Z
TLE epoch observation values (Epoch: 2025-09-15T18:30:23.954Z)
Latitude
-0.00001°
Longitude
-125.8869°
Altitude
1,417.513 km
Speed
7.146 km/s
True Right ascension
09h 46m 44s
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
01:58:57
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
1,412.105 km
Perigee altitude
1,387.904 km
Semi-major axis
7,778.141 km
Eccentricity
0.00156
Inclination
82.6134°
RAAN
146.6839°
Arg. of periapsis
183.1219°
True anomaly
176.98728°
Mean anomaly
176.9779°
Eccentric anomaly
176.98259°
Mean motion
3.16395 °/min
Orbital period
113.78 mins
BSTAR
-0.000018322
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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. |
|---|---|---|---|---|---|---|---|
| 9 mins | 2025-09-16 15:32:07.234Z | 111.275° ESE | 2025-09-16 15:36:07.234Z | 80.306° E | 16.86° | 2025-09-16 15:41:07.234Z | 42.008° NE |
| 15 mins | 2025-09-16 17:23:07.234Z | 187.805° SSW | 2025-09-16 17:30:07.234Z | 310.06° NW | 44.891° | 2025-09-16 17:38:07.234Z | 6.776° NNE |
| 8 mins | 2025-09-16 19:22:07.234Z | 267.127° W | 2025-09-16 19:26:07.234Z | 298.533° NW | 16.01° | 2025-09-16 19:30:07.234Z | 329.488° NNW |
| 13 mins | 2025-09-17 03:24:07.234Z | 13.428° NNE | 2025-09-17 03:30:07.234Z | 73.703° E | 31.523° | 2025-09-17 03:37:07.234Z | 137.369° SSE |
| 13 mins | 2025-09-17 05:19:07.234Z | 333.517° NNW | 2025-09-17 05:25:07.234Z | 267.556° W | 34.59° | 2025-09-17 05:32:07.234Z | 205.21° SW |
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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