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: 8 hours ago
TLE from 8 hours ago
0 COSMOS 1909
1 18788U 88002A 25351.91070863 .00000038 00000-0 14955-3 0 9998
2 18788 82.6121 32.7303 0002131 49.0228 124.1466 12.62864734747920Epoch: 2025-12-17T21:51Z
TLE epoch observation values (Epoch: 2025-12-17T21:51:25.225Z)
Latitude
6.68356°
Longitude
157.23512°
Altitude
1,414.19 km
Speed
7.153 km/s
True Right ascension
14h 07m 27s
True Declination
6° 38' 50"
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
04:50:12
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
1,410.12 km
Perigee altitude
1,406.802 km
Semi-major axis
7,786.598 km
Eccentricity
0.00021
Inclination
82.6121°
RAAN
32.7303°
Arg. of periapsis
49.0228°
True anomaly
124.16681°
Mean anomaly
124.1466°
Eccentric anomaly
124.1567°
Mean motion
3.1588 °/min
Orbital period
113.97 mins
BSTAR
0.00014955
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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. |
|---|---|---|---|---|---|---|---|
| 8 mins | 2025-12-18 12:47:14.561Z | 31.585° NE | 2025-12-18 12:51:14.561Z | 62.211° ENE | 15.171° | 2025-12-18 12:55:14.561Z | 92.667° ESE |
| 15 mins | 2025-12-18 14:40:14.561Z | 354.612° N | 2025-12-18 14:47:14.561Z | 52.758° ENE | 44.66° | 2025-12-18 14:55:14.561Z | 170.589° S |
| 9 mins | 2025-12-18 16:37:14.561Z | 314.161° NW | 2025-12-18 16:41:14.561Z | 282.203° WNW | 17.729° | 2025-12-18 16:46:14.561Z | 243.458° WSW |
| 6 mins | 2025-12-19 01:38:14.561Z | 97.835° ESE | 2025-12-19 01:41:14.561Z | 74.802° E | 14.033° | 2025-12-19 01:44:14.561Z | 52.204° ENE |
| 14 mins | 2025-12-19 03:28:14.561Z | 180.85° SSW | 2025-12-19 03:34:14.561Z | 138.609° SSE | 44.617° | 2025-12-19 03:42:14.561Z | 9.336° NNE |
| 10 mins | 2025-12-19 05:26:14.561Z | 259.726° W | 2025-12-19 05:30:14.561Z | 292.207° WNW | 18.525° | 2025-12-19 05:36:14.561Z | 338.999° N |
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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