COSMOS 249 DEB, 3506
Orbit data source: Space-Track
COSMOS 249 DEB, 3506 is space debris in LEO originally from a launch on Sun, 20 Oct 1968 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
3506 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, 0.6 m
Radar Cross Section
Medium (>0.1 m² and <1 m²)
Expand to show TLE details & historyLast TLE update: 11 hours ago
TLE from 11 hours ago
0 COSMOS 249 DEB
1 03506U 68091C 26253.76816988 -.00000026 00000-0 35907-4 0 9996
2 03506 62.3716 49.0454 0940451 281.6625 68.0427 12.91134418717534Epoch: 2026-09-10T18:26Z
TLE epoch observation values (Epoch: 2026-09-10T18:26:09.877Z)
Latitude
-0.00006°
Longitude
142.70308°
Altitude
1,090.061 km
Speed
7.406 km/s
True Right ascension
03h 16m 10s
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
22:05:58
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
2,017.713 km
Perigee altitude
574.283 km
Semi-major axis
7,674.135 km
Eccentricity
0.09405
Inclination
62.3716°
RAAN
49.0454°
Arg. of periapsis
281.6625°
True anomaly
78.43877°
Mean anomaly
68.0427°
Eccentric anomaly
73.20114°
Mean motion
3.22849 °/min
Orbital period
111.51 mins
BSTAR
0.000035907
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 #91 in the year 1968 (1968-10-20 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 249 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. |
|---|---|---|---|---|---|---|---|
| 17 mins | 2026-09-11 11:15:23.389Z | 175.84° S | 2026-09-11 11:22:23.389Z | 113.805° SE | 42.823° | 2026-09-11 11:32:23.389Z | 45.125° ENE |
| 19 mins | 2026-09-11 13:10:23.389Z | 238.029° WSW | 2026-09-11 13:18:23.389Z | 320.022° NNW | 59.392° | 2026-09-11 13:29:23.389Z | 32.731° NE |
| 17 mins | 2026-09-11 15:09:23.389Z | 290.567° WNW | 2026-09-11 15:17:23.389Z | 344.652° N | 27.459° | 2026-09-11 15:26:23.389Z | 34.27° NE |
| 16 mins | 2026-09-11 17:10:23.389Z | 326.743° NNW | 2026-09-11 17:17:23.389Z | 8.235° NNE | 23.968° | 2026-09-11 17:26:23.389Z | 58.108° ENE |
| 20 mins | 2026-09-11 19:07:23.389Z | 331.184° NNW | 2026-09-11 19:17:23.389Z | 35.875° NE | 41.611° | 2026-09-11 19:27:23.389Z | 103.038° ESE |
| 20 mins | 2026-09-11 21:04:23.389Z | 322.073° NNW | 2026-09-11 21:14:23.389Z | 250.944° W | 78.988° | 2026-09-11 21:24:23.389Z | 154.788° SSE |
| 12 mins | 2026-09-11 23:02:23.389Z | 296.28° NW | 2026-09-11 23:08:23.389Z | 261.641° W | 20.951° | 2026-09-11 23:14:23.389Z | 222.1° SW |
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 |
|---|