COSMOS 252 DEB, 3555
Orbit data source: Space-Track
COSMOS 252 DEB, 3555 is space debris in LEO originally from a launch on Fri, 01 Nov 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
Embed this page
Focus sentinelFocus sentinel
3555 intel report (Beta)
Focus sentinelFocus sentinel
Create New Watchlist
Focus sentinelFocus sentinel
Edit Public Description
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: 16 hours ago
TLE from 16 hours ago
0 COSMOS 252 DEB
1 3555U 68097H 25304.80548072 .00000852 00000-0 32244-3 0 9999
2 3555 62.3109 132.2092 0917884 125.9212 243.0547 13.08258098706922Epoch: 2025-10-31T19:19Z
TLE epoch observation values (Epoch: 2025-10-31T19:19:53.534Z)
Latitude
-0.00003°
Longitude
161.89148°
Altitude
1,595.799 km
Speed
6.901 km/s
True Right ascension
08h 48m 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
07:19:47
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
1,927.113 km
Perigee altitude
530.641 km
Semi-major axis
7,607.014 km
Eccentricity
0.09179
Inclination
62.3109°
RAAN
132.2092°
Arg. of periapsis
125.9212°
True anomaly
234.17801°
Mean anomaly
243.0547°
Eccentric anomaly
238.56736°
Mean motion
3.27131 °/min
Orbital period
110.05 mins
BSTAR
0.00032244
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 #97 in the year 1968 (1968-11-01 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 252 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. |
|---|---|---|---|---|---|---|---|
| 13 mins | 2025-11-01 13:46:13.151Z | 189.341° SSW | 2025-11-01 13:53:13.151Z | 129.901° SE | 35.785° | 2025-11-01 13:59:13.151Z | 49.471° ENE |
| 10 mins | 2025-11-01 15:42:13.151Z | 253.078° W | 2025-11-01 15:47:13.151Z | 308.294° NW | 29.893° | 2025-11-01 15:52:13.151Z | 17.398° NNE |
| 5 mins | 2025-11-01 23:27:13.151Z | 303.916° NW | 2025-11-01 23:29:13.151Z | 234.384° WSW | 38.324° | 2025-11-01 23:32:13.151Z | 164.9° S |
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 |
|---|