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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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: 20 hours ago
TLE from 20 hours ago
0 COSMOS 1911
1 18790U 88002C 26092.33244546 .00000035 00000-0 13103-3 0 9992
2 18790 82.6054 296.9371 0006658 310.7358 222.3494 12.64382717763363Epoch: 2026-04-02T07:58Z
TLE epoch observation values (Epoch: 2026-04-02T07:58:43.287Z)
Latitude
6.83876°
Longitude
165.68688°
Altitude
1,410.848 km
Speed
7.154 km/s
True Right ascension
07h 44m 11s
True Declination
6° 48' 06"
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
10:10:12
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
1,407.404 km
Perigee altitude
1,397.043 km
Semi-major axis
7,780.361 km
Eccentricity
0.00067
Inclination
82.6054°
RAAN
296.9371°
Arg. of periapsis
310.7358°
True anomaly
222.29804°
Mean anomaly
222.3494°
Eccentric anomaly
222.32371°
Mean motion
3.1626 °/min
Orbital period
113.83 mins
BSTAR
0.00013103
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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. |
|---|---|---|---|---|---|---|---|
| 14 mins | 2026-04-03 13:32:35.899Z | 159.409° S | 2026-04-03 13:39:35.899Z | 91.468° ESE | 37.563° | 2026-04-03 13:46:35.899Z | 20.115° NNE |
| 13 mins | 2026-04-03 15:28:35.899Z | 231.602° WSW | 2026-04-03 15:34:35.899Z | 286.817° WNW | 28.787° | 2026-04-03 15:41:35.899Z | 348.87° N |
| 10 mins | 2026-04-03 23:34:35.899Z | 27.589° NE | 2026-04-03 23:39:35.899Z | 68.474° E | 18.328° | 2026-04-03 23:44:35.899Z | 106.657° ESE |
| 14 mins | 2026-04-04 01:28:35.899Z | 350.627° N | 2026-04-04 01:34:35.899Z | 315.039° NNW | 44.627° | 2026-04-04 01:42:35.899Z | 178.186° S |
| 6 mins | 2026-04-04 03:25:35.899Z | 305.49° NW | 2026-04-04 03:28:35.899Z | 282.381° WNW | 14.295° | 2026-04-04 03:31:35.899Z | 259.557° W |
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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