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: 6 hours ago
TLE from 6 hours ago
0 COSMOS 1909
1 18788U 88002A 26126.78553235 .00000026 00000-0 85109-4 0 9990
2 18788 82.6087 303.7805 0002502 72.2530 299.2403 12.62869453765585Epoch: 2026-05-06T18:51Z
TLE epoch observation values (Epoch: 2026-05-06T18:51:09.995Z)
Latitude
11.32799°
Longitude
157.82958°
Altitude
1,412.153 km
Speed
7.156 km/s
True Right ascension
20h 21m 02s
True Declination
11° 16' 03"
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
09:09:27
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
1,410.39 km
Perigee altitude
1,406.494 km
Semi-major axis
7,786.579 km
Eccentricity
0.00025
Inclination
82.6087°
RAAN
303.7805°
Arg. of periapsis
72.253°
True anomaly
299.21528°
Mean anomaly
299.2403°
Eccentric anomaly
299.22779°
Mean motion
3.15881 °/min
Orbital period
113.97 mins
BSTAR
0.000085109
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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. |
|---|---|---|---|---|---|---|---|
| 10 mins | 2026-05-07 01:10:19.355Z | 313.413° NW | 2026-05-07 01:14:19.355Z | 273.424° WNW | 24.607° | 2026-05-07 01:20:19.355Z | 225.19° WSW |
| 14 mins | 2026-05-07 12:00:19.355Z | 165.57° S | 2026-05-07 12:07:19.355Z | 79.354° E | 40.798° | 2026-05-07 12:14:19.355Z | 15.859° NNE |
| 11 mins | 2026-05-07 13:57:19.355Z | 244.126° WSW | 2026-05-07 14:02:19.355Z | 290.288° WNW | 25.108° | 2026-05-07 14:08:19.355Z | 342.675° N |
| 11 mins | 2026-05-07 22:02:19.355Z | 23.401° NE | 2026-05-07 22:07:19.355Z | 65.927° ENE | 21.86° | 2026-05-07 22:13:19.355Z | 115.113° SE |
| 15 mins | 2026-05-07 23:56:19.355Z | 346.513° N | 2026-05-08 00:03:19.355Z | 256.731° W | 43.305° | 2026-05-08 00:11:19.355Z | 185.314° 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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