COSMOS 1275 DEB, 39938
Orbit data source: Space-Track
COSMOS 1275 DEB, 39938 is space debris in LEO originally from a launch on Thu, 04 Jun 1981 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
Embed this page
Focus sentinelFocus sentinel
39938 intel report (Beta)
Focus sentinelFocus sentinel
Create New Watchlist
Focus sentinelFocus sentinel
Edit Public Description
Expand to show TLE details & historyLast TLE update: 2 days ago
TLE from 2 days ago
0 COSMOS 1275 DEB
1 39938U 81053MY 25302.66100918 .00001492 00000-0 16261-2 0 9996
2 39938 83.0665 280.2105 0129887 248.4809 110.2457 13.68543977567708Epoch: 2025-10-29T15:51Z
TLE epoch observation values (Epoch: 2025-10-29T15:51:51.193Z)
Latitude
0.00003°
Longitude
4.01625°
Altitude
1,041.976 km
Speed
7.314 km/s
True Right ascension
18h 40m 50s
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
22:09:02
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
1,097.813 km
Perigee altitude
906.098 km
Semi-major axis
7,380.092 km
Eccentricity
0.01299
Inclination
83.0665°
RAAN
280.2105°
Arg. of periapsis
248.4809°
True anomaly
111.6342°
Mean anomaly
110.2457°
Eccentric anomaly
110.94074°
Mean motion
3.42334 °/min
Orbital period
105.16 mins
BSTAR
0.0016261
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 #53 in the year 1981 (1981-06-04 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 1275 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. |
|---|---|---|---|---|---|---|---|
| 10 mins | 2025-11-01 09:22:57.617Z | 14.077° NNE | 2025-11-01 09:27:57.617Z | 68.947° E | 28.323° | 2025-11-01 09:32:57.617Z | 131.556° SE |
| 9 mins | 2025-11-01 11:09:57.617Z | 329.51° NNW | 2025-11-01 11:13:57.617Z | 278.112° WNW | 31.501° | 2025-11-01 11:18:57.617Z | 211.717° SW |
| 12 mins | 2025-11-01 22:55:57.617Z | 179.255° S | 2025-11-01 23:00:57.617Z | 140.577° SSE | 44.099° | 2025-11-01 23:07:57.617Z | 9.427° NNE |
| 6 mins | 2025-11-02 00:45:57.617Z | 270.355° WNW | 2025-11-02 00:47:57.617Z | 290.551° WNW | 16.521° | 2025-11-02 00:51:57.617Z | 328.515° NNW |
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 ascending 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 ascending order |
|---|