COSMOS 1911, 18790
Orbit data source: Space-Track
COSMOS 1911, 18790 is a payload satellite owned by UNKS (CIS) in LEO that was launched on Fri, 15 Jan 1988 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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18790 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 1911
1 18790U 88002C 25305.52587510 .00000019 00000-0 47528-4 0 9991
2 18790 82.6128 33.7725 0006204 292.1186 78.2140 12.64377592744184Epoch: 2025-11-01T12:37Z
TLE epoch observation values (Epoch: 2025-11-01T12:37:15.608Z)
Latitude
10.26515°
Longitude
164.74155°
Altitude
1,405.937 km
Speed
7.158 km/s
True Right ascension
02h 20m 26s
True Declination
10° 12' 36"
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
12:28:12
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
1,407.071 km
Perigee altitude
1,397.417 km
Semi-major axis
7,780.381 km
Eccentricity
0.00062
Inclination
82.6128°
RAAN
33.7725°
Arg. of periapsis
292.1186°
True anomaly
78.2836°
Mean anomaly
78.214°
Eccentric anomaly
78.2488°
Mean motion
3.16258 °/min
Orbital period
113.83 mins
BSTAR
0.000047528
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Other satellites on launch #2 in the year 1988 (1988-01-15 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 1911 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. |
|---|---|---|---|---|---|---|---|
| 15 mins | 2025-11-02 17:39:51.691Z | 355.521° N | 2025-11-02 17:46:51.691Z | 47.201° ENE | 44.125° | 2025-11-02 17:54:51.691Z | 168.158° S |
| 9 mins | 2025-11-02 19:36:51.691Z | 315.457° NNW | 2025-11-02 19:40:51.691Z | 283.036° WNW | 18.798° | 2025-11-02 19:45:51.691Z | 242.729° WSW |
| 5 mins | 2025-11-03 04:37:51.691Z | 92.848° ESE | 2025-11-03 04:39:51.691Z | 77.886° E | 12.801° | 2025-11-03 04:42:51.691Z | 55.492° ENE |
| 14 mins | 2025-11-03 06:26:51.691Z | 177.792° S | 2025-11-03 06:33:51.691Z | 66.727° ENE | 44.223° | 2025-11-03 06:40:51.691Z | 10.757° NNE |
| 10 mins | 2025-11-03 08:24:51.691Z | 257.471° W | 2025-11-03 08:28:51.691Z | 290.963° WNW | 19.787° | 2025-11-03 08:34:51.691Z | 339.184° N |
| 12 mins | 2025-11-03 16:27:51.691Z | 16.971° NNE | 2025-11-03 16:33:51.691Z | 72.428° E | 27.098° | 2025-11-03 16:39:51.691Z | 125.513° SE |
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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