COSMOS 1823 DEB, 39811
Orbit data source: Space-Track
COSMOS 1823 DEB, 39811 is space debris in LEO originally from a launch on Fri, 20 Feb 1987 UTC launched from the Plesetsk Missile And Space Complex (PKMTR). 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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39811 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 1823 DEB
1 39811U 87020EK 26165.20386667 .00000171 00000-0 12934-2 0 9997
2 39811 73.6300 349.1601 0039690 109.7846 11.2026 12.46433480 22347Epoch: 2026-06-14T04:53Z
TLE epoch observation values (Epoch: 2026-06-14T04:53:34.080Z)
Latitude
55.36131°
Longitude
168.22938°
Altitude
1,457.623 km
Speed
7.153 km/s
True Right ascension
09h 36m 31s
True Declination
55° 12' 53"
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
23:08:11
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
1,508.497 km
Perigee altitude
1,446.141 km
Semi-major axis
7,855.456 km
Eccentricity
0.00397
Inclination
73.63°
RAAN
349.1601°
Arg. of periapsis
109.7846°
True anomaly
11.29139°
Mean anomaly
11.2026°
Eccentric anomaly
11.24695°
Mean motion
3.11735 °/min
Orbital period
115.48 mins
BSTAR
0.0012934
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Other satellites on launch #20 in the year 1987 (1987-02-20 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 1823 DEB 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. |
|---|---|---|---|---|---|---|---|
| 16 mins | 2026-06-22 12:39:54.743Z | 209.294° SW | 2026-06-22 12:47:54.743Z | 300.344° NW | 43.188° | 2026-06-22 12:55:54.743Z | 15.23° NNE |
| 8 mins | 2026-06-22 14:43:54.743Z | 288.113° WNW | 2026-06-22 14:47:54.743Z | 318.537° NNW | 15.448° | 2026-06-22 14:51:54.743Z | 347.707° N |
| 13 mins | 2026-06-22 20:51:54.743Z | 4.597° NNE | 2026-06-22 20:57:54.743Z | 58.645° ENE | 26.296° | 2026-06-22 21:04:54.743Z | 113.583° SE |
| 15 mins | 2026-06-22 22:48:54.743Z | 332.978° NNW | 2026-06-22 22:55:54.743Z | 265.938° W | 41.944° | 2026-06-22 23:03:54.743Z | 178.532° S |
| 15 mins | 2026-06-23 11:46:54.743Z | 182.517° SSW | 2026-06-23 11:53:54.743Z | 94.175° ESE | 42.807° | 2026-06-23 12:01:54.743Z | 24.769° NE |
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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