COSMOS 1909, 18788
Orbit data source: Space-Track
COSMOS 1909, 18788 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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18788 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: 7 hours ago
TLE from 7 hours ago
0 COSMOS 1909
1 18788U 88002A 26138.86240061 .00000014 00000-0 19999-4 0 9993
2 18788 82.6092 296.0961 0002229 56.8470 112.6752 12.62869869767101Epoch: 2026-05-18T20:41Z
TLE epoch observation values (Epoch: 2026-05-18T20:41:51.412Z)
Latitude
10.31705°
Longitude
-72.25905°
Altitude
1,413.781 km
Speed
7.154 km/s
True Right ascension
07h 38m 59s
True Declination
10° 15' 42"
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
12:52:46
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
1,410.176 km
Perigee altitude
1,406.704 km
Semi-major axis
7,786.577 km
Eccentricity
0.00022
Inclination
82.6092°
RAAN
296.0961°
Arg. of periapsis
56.847°
True anomaly
112.69877°
Mean anomaly
112.6752°
Eccentric anomaly
112.68698°
Mean motion
3.15881 °/min
Orbital period
113.97 mins
BSTAR
0.000019999
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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 1909 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. |
|---|---|---|---|---|---|---|---|
| 7 mins | 2026-05-19 09:16:51.338Z | 100.087° ESE | 2026-05-19 09:19:51.338Z | 77.308° E | 14.149° | 2026-05-19 09:23:51.338Z | 47.644° ENE |
| 15 mins | 2026-05-19 11:06:51.338Z | 181.271° SSW | 2026-05-19 11:13:51.338Z | 54.762° ENE | 44.697° | 2026-05-19 11:21:51.338Z | 9.132° NNE |
| 9 mins | 2026-05-19 13:05:51.338Z | 264.569° W | 2026-05-19 13:09:51.338Z | 298.515° NW | 18.417° | 2026-05-19 13:14:51.338Z | 337.151° NNW |
| 12 mins | 2026-05-19 21:08:51.338Z | 16.902° NNE | 2026-05-19 21:14:51.338Z | 76.105° E | 28.866° | 2026-05-19 21:20:51.338Z | 129.503° SE |
| 14 mins | 2026-05-19 23:02:51.338Z | 339.558° N | 2026-05-19 23:09:51.338Z | 266.835° W | 37.473° | 2026-05-19 23:16:51.338Z | 200.628° SSW |
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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