COSMOS 1823 DEB, 39821
Orbit data source: Space-Track
COSMOS 1823 DEB, 39821 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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39821 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: 4 days ago
TLE from 4 days ago
0 COSMOS 1823 DEB
1 39821U 87020EV 26170.17223213 .00000145 00000-0 83332-3 0 9999
2 39821 73.2336 131.4222 0096205 48.7195 312.2097 12.68734233557639Epoch: 2026-06-19T04:08Z
TLE epoch observation values (Epoch: 2026-06-19T04:08:00.856Z)
Latitude
0.00004°
Longitude
162.01362°
Altitude
1,339.662 km
Speed
7.211 km/s
True Right ascension
08h 45m 41s
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
06:36:54
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
1,459.662 km
Perigee altitude
1,310.292 km
Semi-major axis
7,763.114 km
Eccentricity
0.00962
Inclination
73.2336°
RAAN
131.4222°
Arg. of periapsis
48.7195°
True anomaly
311.38652°
Mean anomaly
312.2097°
Eccentric anomaly
311.79878°
Mean motion
3.17314 °/min
Orbital period
113.45 mins
BSTAR
0.00083332
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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. |
|---|---|---|---|---|---|---|---|
| 13 mins | 2026-06-22 21:09:23.713Z | 161.775° S | 2026-06-22 21:16:23.713Z | 96.861° ESE | 31.151° | 2026-06-22 21:22:23.713Z | 39.145° NE |
| 13 mins | 2026-06-22 23:06:23.713Z | 234.237° WSW | 2026-06-22 23:12:23.713Z | 306.334° NW | 34.807° | 2026-06-22 23:19:23.713Z | 8.994° NNE |
| 13 mins | 2026-06-23 07:07:23.713Z | 0.285° NNE | 2026-06-23 07:13:23.713Z | 65.277° ENE | 32.55° | 2026-06-23 07:20:23.713Z | 126.194° SE |
| 14 mins | 2026-06-23 09:02:23.713Z | 324.949° NNW | 2026-06-23 09:09:23.713Z | 252.638° W | 35.36° | 2026-06-23 09:16:23.713Z | 191.633° SSW |
Co-orbital & Co-planar RSOs
Thresholds — Semi-major Axis: ±100 km, RAAN: ±3°, Inclination: ±5°
TCA is derived from TLE conjunctions
Click to sort rows by RSO header in ascending order | Click to sort rows by Country header in ascending order | Click to sort rows by Type header in ascending order | Click to sort rows by Inclination Δ header in ascending order | Click to sort rows by RAAN Δ header in ascending order | Click to sort rows by Coplanar Angle header in ascending order | Click to sort rows by SMA Δ header in ascending order | Click to sort rows by Orbital period header in ascending order | Click to sort rows by <5km Md TCA header in descending order |
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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings
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