COSMOS 1818 COOLANT, 50777
Orbit data source: Space-Track
COSMOS 1818 COOLANT, 50777 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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50777 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: 5 days ago
TLE from 5 days ago
0 COSMOS 1818 COOLANT
1 50777U 87011AS 26168.24520412 .00000702 00000-0 25060-3 0 9991
2 50777 65.0072 153.8923 0019550 276.4988 83.3876 14.40711443108107Epoch: 2026-06-17T05:53Z
TLE epoch observation values (Epoch: 2026-06-17T05:53:05.635Z)
Latitude
0.00003°
Longitude
160.11318°
Altitude
756.551 km
Speed
7.478 km/s
True Right ascension
10h 15m 34s
True Declination
0° 00' 00"
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
21:34:08
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
768.664 km
Perigee altitude
740.775 km
Semi-major axis
7,132.857 km
Eccentricity
0.00196
Inclination
65.0072°
RAAN
153.8923°
Arg. of periapsis
276.4988°
True anomaly
83.6102°
Mean anomaly
83.3876°
Eccentric anomaly
83.49889°
Mean motion
3.60286 °/min
Orbital period
99.92 mins
BSTAR
0.0002506
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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. |
|---|---|---|---|---|---|---|---|
| 8 mins | 2026-06-22 22:37:07.157Z | 164.515° S | 2026-06-22 22:41:07.157Z | 103.734° ESE | 25.592° | 2026-06-22 22:45:07.157Z | 53.745° ENE |
| 8 mins | 2026-06-23 00:20:07.157Z | 249.092° W | 2026-06-23 00:23:07.157Z | 299.155° NW | 31.956° | 2026-06-23 00:28:07.157Z | 16.61° NNE |
| 7 mins | 2026-06-23 07:22:07.157Z | 2.506° NNE | 2026-06-23 07:25:07.157Z | 53.188° ENE | 25.805° | 2026-06-23 07:29:07.157Z | 106.026° ESE |
| 8 mins | 2026-06-23 09:04:07.157Z | 308.913° NW | 2026-06-23 09:08:07.157Z | 237.532° WSW | 33.401° | 2026-06-23 09:12:07.157Z | 179.161° 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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