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, 0.9 m
Radar Cross Section
1.257 m², Large (>1 m²)
Expand to show TLE details & historyLast TLE update: 9 hours ago
TLE from 9 hours ago
0 COSMOS 1909
1 18788U 88002A 26306.79620301 .00000011 00000-0 20292-5 0 9997
2 18788 82.6139 189.3057 0002366 31.8533 40.4026 12.62873512788305Epoch: 2026-11-02T19:06Z
TLE epoch observation values (Epoch: 2026-11-02T19:06:31.940Z)
Latitude
70.91006°
Longitude
-117.5123°
Altitude
1,421.934 km
Speed
7.157 km/s
True Right ascension
14h 04m 45s
True Declination
70° 48' 45"
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
00:24:01
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
1,410.267 km
Perigee altitude
1,406.583 km
Semi-major axis
7,786.562 km
Eccentricity
0.00024
Inclination
82.6139°
RAAN
189.3057°
Arg. of periapsis
31.8533°
True anomaly
40.42018°
Mean anomaly
40.4026°
Eccentric anomaly
40.41139°
Mean motion
3.15882 °/min
Orbital period
113.97 mins
BSTAR
0.0000020292
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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. |
|---|---|---|---|---|---|---|---|
| 15 mins | 2026-11-03 04:50:40.308Z | 343.345° N | 2026-11-03 04:58:40.308Z | 264.097° W | 55.055° | 2026-11-03 05:05:40.308Z | 196.827° SSW |
| 12 mins | 2026-11-03 15:45:40.308Z | 134.412° SE | 2026-11-03 15:51:40.308Z | 79.147° E | 30.027° | 2026-11-03 15:57:40.308Z | 29.621° NE |
| 15 mins | 2026-11-03 17:38:40.308Z | 208.225° SW | 2026-11-03 17:45:40.308Z | 280.43° WNW | 54.736° | 2026-11-03 17:53:40.308Z | 358.834° N |
| 14 mins | 2026-11-04 03:40:40.308Z | 2.582° NNE | 2026-11-04 03:46:40.308Z | 66.437° ENE | 61.408° | 2026-11-04 03:54:40.308Z | 158.102° S |
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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