COSMOS 1823 DEB, 18729
Orbit data source: Space-Track
COSMOS 1823 DEB, 18729 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.
Focus sentinelFocus sentinel
Request partner network tasking
Focus sentinelFocus sentinel
Embed this page
Focus sentinelFocus sentinel
18729 intel report (Beta)
Focus sentinelFocus sentinel
Edit Public Description
Focus sentinelFocus sentinel
Edit Sat Name
Focus sentinelFocus sentinel
Create New Watchlist
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, 0.2 m
Radar Cross Section
Medium (>0.1 m² and <1 m²)
Expand to show TLE details & historyLast TLE update: 2 days ago
TLE from 2 days ago
0 COSMOS 1823 DEB
1 18729U 87020G 26171.42914888 .00000027 00000-0 38855-3 0 9996
2 18729 73.8115 180.6572 0128543 212.2083 302.5624 12.23659564719398Epoch: 2026-06-20T10:17Z
TLE epoch observation values (Epoch: 2026-06-20T10:17:58.463Z)
Latitude
25.38923°
Longitude
-70.3609°
Altitude
1,525.092 km
Speed
7.129 km/s
True Right ascension
23h 31m 06s
True Declination
25° 16' 09"
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
01:45:28
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
1,676.75 km
Perigee altitude
1,472.298 km
Semi-major axis
7,952.661 km
Eccentricity
0.01285
Inclination
73.8115°
RAAN
180.6572°
Arg. of periapsis
212.2083°
True anomaly
301.31023°
Mean anomaly
302.5624°
Eccentric anomaly
301.93739°
Mean motion
3.06037 °/min
Orbital period
117.63 mins
BSTAR
0.00038855
Loading maneuver chart data...
Computing Atmospheric mass density...
Loading historical data...
Loading historical data...
Loading historical data...
Loading historical data...
Loading historical data...
Loading historical data...
Loading historical data...
Other satellites on launch #20 in the year 1987 (1987-02-20 UTC)
Did you know?
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
Loading observer location...
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 | 2026-06-23 00:18:45.659Z | 157.845° S | 2026-06-23 00:26:45.659Z | 100.973° ESE | 31.116° | 2026-06-23 00:34:45.659Z | 37.111° NE |
| 17 mins | 2026-06-23 02:18:45.659Z | 222.155° SW | 2026-06-23 02:26:45.659Z | 291.246° WNW | 39.147° | 2026-06-23 02:35:45.659Z | 10.977° NNE |
| 7 mins | 2026-06-23 04:26:45.659Z | 300.895° NW | 2026-06-23 04:29:45.659Z | 320.309° NNW | 13.311° | 2026-06-23 04:33:45.659Z | 346.005° N |
| 15 mins | 2026-06-23 10:39:45.659Z | 354.189° N | 2026-06-23 10:46:45.659Z | 56.278° ENE | 35.712° | 2026-06-23 10:54:45.659Z | 131.154° SE |
| 15 mins | 2026-06-23 12:39:45.659Z | 324.767° NNW | 2026-06-23 12:46:45.659Z | 267.163° W | 33.164° | 2026-06-23 12:54:45.659Z | 197.81° 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 |
|---|
CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings
Authenticating...
Click to sort rows by Secondary header in ascending order | Click to sort rows by Secondary name header in ascending order | Click to sort rows by Country header in ascending order | Click to sort rows by Owner header in ascending order | Click to sort rows by Obj. Type header in ascending order | Click to sort rows by Miss dist. header in ascending order | Click to sort rows by Rel. speed header in ascending order | Click to sort rows by Apr. angle header in ascending order | Click to sort rows by TCA header in descending order |
|---|