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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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: 11 hours ago
TLE from 11 hours ago
0 COSMOS 1909
1 18788U 88002A 26036.66375356 .00000025 00000-0 78243-4 0 9993
2 18788 82.6145 1.0838 0000456 272.9404 260.3698 12.62866184754209Epoch: 2026-02-05T15:55Z
TLE epoch observation values (Epoch: 2026-02-05T15:55:48.307Z)
Latitude
6.56846°
Longitude
165.46882°
Altitude
1,413.318 km
Speed
7.154 km/s
True Right ascension
12h 00m 55s
True Declination
6° 31' 58"
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
04:39:37
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
1,408.81 km
Perigee altitude
1,408.1 km
Semi-major axis
7,786.592 km
Eccentricity
0.00005
Inclination
82.6145°
RAAN
1.0838°
Arg. of periapsis
272.9404°
True anomaly
260.36465°
Mean anomaly
260.3698°
Eccentric anomaly
260.36722°
Mean motion
3.1588 °/min
Orbital period
113.97 mins
BSTAR
0.000078243
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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 | 2026-02-06 08:44:06.173Z | 3.117° NNE | 2026-02-06 08:51:06.173Z | 68.102° E | 38.284° | 2026-02-06 08:59:06.173Z | 151.444° SSE |
| 12 mins | 2026-02-06 10:40:06.173Z | 328.734° NNW | 2026-02-06 10:46:06.173Z | 274.463° WNW | 27.563° | 2026-02-06 10:52:06.173Z | 221.718° SW |
| 14 mins | 2026-02-06 21:32:06.173Z | 160.302° S | 2026-02-06 21:39:06.173Z | 84.2° E | 38.47° | 2026-02-06 21:46:06.173Z | 18.499° NNE |
| 13 mins | 2026-02-06 23:28:06.173Z | 234.001° WSW | 2026-02-06 23:34:06.173Z | 289.107° WNW | 27.871° | 2026-02-06 23:41:06.173Z | 348.875° N |
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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