COSMOS 1818 COOLANT, 50787
Orbit data source: Space-Track
COSMOS 1818 COOLANT, 50787 is space debris in LEO originally from a launch on Sun, 01 Feb 1987 UTC launched from the Tyuratam Missile And Space Complex (TTMTR). Debris objects in space refer to the collection of defunct objects orbiting the Earth. Examples of debris include non-operational satellites, rocket bodies, and fragments generated from explosions, collisions, or faulty payload assembly.
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50787 intel report (Beta)
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Identifier
Orbit
Country
CISRelated business
Manufacturer
Unknown
Mission
Spacecraft
Bus & Motor
Unknown
Mass
Unknown
Launch date (UTC)
Launch vehicle
Unknown
Launch site
Object type
Shape & HBR
Unknown shape, 0.1 m
Radar Cross Section
Small (<0.1 m²)
Expand to show TLE details & historyLast TLE update: 1 week ago
TLE from 1 week ago
0 COSMOS 1818 COOLANT
1 50787U 87011BC 26165.80710410 .00000580 00000-0 21698-3 0 9997
2 50787 65.0077 185.3979 0019991 287.5967 249.7405 14.39687094545500Epoch: 2026-06-14T19:22Z
TLE epoch observation values (Epoch: 2026-06-14T19:22:13.794Z)
Latitude
2.52464°
Longitude
170.56647°
Altitude
766.187 km
Speed
7.469 km/s
True Right ascension
00h 16m 54s
True Declination
2° 30' 34"
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
21:33:54
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
772.37 km
Perigee altitude
743.838 km
Semi-major axis
7,136.241 km
Eccentricity
0.002
Inclination
65.0077°
RAAN
185.3979°
Arg. of periapsis
287.5967°
True anomaly
249.52578°
Mean anomaly
249.7405°
Eccentric anomaly
249.63312°
Mean motion
3.6003 °/min
Orbital period
99.99 mins
BSTAR
0.00021698
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Other satellites on launch #11 in the year 1987 (1987-02-01 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 1818 COOLANT 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 | 2026-06-22 10:31:53.041Z | 315.225° NNW | 2026-06-22 10:33:53.041Z | 247.631° W | 43.482° | 2026-06-22 10:38:53.041Z | 158.573° S |
| 9 mins | 2026-06-23 01:04:53.041Z | 204.528° SW | 2026-06-23 01:08:53.041Z | 78.972° E | 44.267° | 2026-06-23 01:13:53.041Z | 33.806° NE |
| 5 mins | 2026-06-23 02:49:53.041Z | 288.134° WNW | 2026-06-23 02:51:53.041Z | 314.112° NW | 17.009° | 2026-06-23 02:54:53.041Z | 353.132° N |
| 9 mins | 2026-06-23 09:49:53.041Z | 335.126° NNW | 2026-06-23 09:53:53.041Z | 79.385° E | 43.281° | 2026-06-23 09:58:53.041Z | 141.759° SSE |
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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