COSMOS 1900 DEB, 43500
Orbit data source: Space-Track
COSMOS 1900 DEB, 43500 is space debris in LEO originally from a launch on Sat, 12 Dec 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.
Focus sentinelFocus sentinel
Request partner network tasking
Focus sentinelFocus sentinel
Embed this page
Focus sentinelFocus sentinel
43500 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, 0.1 m
Radar Cross Section
Small (<0.1 m²)
Expand to show TLE details & historyLast TLE update: 6 days ago
TLE from 6 days ago
0 COSMOS 1900 DEB
1 43500U 87101E 26167.76425249 .00000520 00000-0 12807-3 0 9998
2 43500 66.0874 342.9486 0022846 79.8546 297.6345 14.60668008668513Epoch: 2026-06-16T18:20Z
TLE epoch observation values (Epoch: 2026-06-16T18:20:31.415Z)
Latitude
15.73051°
Longitude
169.92162°
Altitude
684.961 km
Speed
7.52 km/s
True Right ascension
23h 20m 20s
True Declination
15° 38' 24"
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
21:34:26
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
705.589 km
Perigee altitude
673.296 km
Semi-major axis
7,067.58 km
Eccentricity
0.00228
Inclination
66.0874°
RAAN
342.9486°
Arg. of periapsis
79.8546°
True anomaly
297.40226°
Mean anomaly
297.6345°
Eccentric anomaly
297.51841°
Mean motion
3.65289 °/min
Orbital period
98.55 mins
BSTAR
0.00012807
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 #101 in the year 1987 (1987-12-12 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 1900 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. |
|---|---|---|---|---|---|---|---|
| 4 mins | 2026-06-22 10:47:24.743Z | 137.631° SSE | 2026-06-22 10:49:24.743Z | 112.119° ESE | 14.168° | 2026-06-22 10:51:24.743Z | 84.381° E |
| 7 mins | 2026-06-22 12:27:24.743Z | 226.85° WSW | 2026-06-22 12:30:24.743Z | 290.317° WNW | 40.888° | 2026-06-22 12:34:24.743Z | 20.665° NNE |
| 8 mins | 2026-06-22 21:04:24.743Z | 332.941° NNW | 2026-06-22 21:07:24.743Z | 2.396° NNE | 44.142° | 2026-06-22 21:12:24.743Z | 148.25° SSE |
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 |
|---|