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: 1 day ago
TLE from 1 day ago
0 COSMOS 1998
1 19789U 89009E 25356.29591637 .00000043 00000-0 17348-3 0 9996
2 19789 82.6116 84.4247 0015155 326.5911 33.4224 12.64928751701655Epoch: 2025-12-22T07:06Z
TLE epoch observation values (Epoch: 2025-12-22T07:06:07.174Z)
Latitude
-0.00004°
Longitude
-113.20125°
Altitude
1,395.563 km
Speed
7.167 km/s
True Right ascension
05h 37m 41s
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
08:27:55
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
1,411.77 km
Perigee altitude
1,388.195 km
Semi-major axis
7,778.12 km
Eccentricity
0.00152
Inclination
82.6116°
RAAN
84.4247°
Arg. of periapsis
326.5911°
True anomaly
33.51821°
Mean anomaly
33.4224°
Eccentric anomaly
33.47029°
Mean motion
3.16396 °/min
Orbital period
113.78 mins
BSTAR
0.00017348
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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. |
|---|---|---|---|---|---|---|---|
| 10 mins | 2025-12-23 15:59:42.579Z | 25.99° NE | 2025-12-23 16:04:42.579Z | 64.954° ENE | 17.271° | 2025-12-23 16:09:42.579Z | 103.013° ESE |
| 15 mins | 2025-12-23 17:53:42.579Z | 352.264° N | 2025-12-23 18:00:42.579Z | 187.615° SSW | 44.917° | 2025-12-23 18:08:42.579Z | 175.467° S |
| 7 mins | 2025-12-23 19:50:42.579Z | 308.129° NW | 2025-12-23 19:53:42.579Z | 284.752° WNW | 15.566° | 2025-12-23 19:57:42.579Z | 253.807° W |
| 7 mins | 2025-12-24 04:49:42.579Z | 101.787° ESE | 2025-12-24 04:52:42.579Z | 77.749° E | 15.793° | 2025-12-24 04:56:42.579Z | 46.88° ENE |
| 14 mins | 2025-12-24 06:39:42.579Z | 185.615° SSW | 2025-12-24 06:46:42.579Z | 2.432° NNE | 44.728° | 2025-12-24 06:53:42.579Z | 7.43° NNE |
| 8 mins | 2025-12-24 08:38:42.579Z | 268.355° W | 2025-12-24 08:42:42.579Z | 301.207° NW | 16.667° | 2025-12-24 08:46:42.579Z | 332.024° NNW |
Co-orbital & Co-planar RSOs
Thresholds — Semi-major Axis: ±100 km, RAAN: ±3°, Inclination: ±5°
TCA is derived from TLE conjunctions
Click to sort rows by RSO header in ascending order | Click to sort rows by Country header in ascending order | Click to sort rows by Type header in ascending order | Click to sort rows by Inclination Δ header in ascending order | Click to sort rows by RAAN Δ header in ascending order | Click to sort rows by Coplanar Angle header in ascending order | Click to sort rows by SMA Δ header in ascending order | Click to sort rows by Orbital period header in ascending order | Click to sort rows by <5km Md TCA header in descending order |
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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings
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