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.
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3555 intel report (Beta)
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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 252 DEB
1 3555U 68097H 26137.82573352 .00000158 00000-0 98523-4 0 9997
2 3555 62.3203 349.4304 0902752 167.6740 194.8053 13.08471767732836Epoch: 2026-05-17T19:49Z
TLE epoch observation values (Epoch: 2026-05-17T19:49:03.376Z)
Latitude
0.00001°
Longitude
176.64356°
Altitude
1,898.311 km
Speed
6.63 km/s
True Right ascension
23h 17m 43s
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
15:06:51
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
1,914.698 km
Perigee altitude
541.398 km
Semi-major axis
7,606.185 km
Eccentricity
0.09028
Inclination
62.3203°
RAAN
349.4304°
Arg. of periapsis
167.674°
True anomaly
192.42341°
Mean anomaly
194.8053°
Eccentric anomaly
193.58994°
Mean motion
3.27185 °/min
Orbital period
110.03 mins
BSTAR
0.000098523
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Other satellites on launch #97 in the year 1968 (1968-11-01 UTC)
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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
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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. |
|---|---|---|---|---|---|---|---|
| 14 mins | 2026-05-18 14:14:29.896Z | 161.045° S | 2026-05-18 14:22:29.896Z | 110.165° ESE | 24.547° | 2026-05-18 14:28:29.896Z | 63.91° ENE |
| 17 mins | 2026-05-18 16:06:29.896Z | 216.528° SW | 2026-05-18 16:16:29.896Z | 349.36° N | 44.66° | 2026-05-18 16:23:29.896Z | 34.043° NE |
| 12 mins | 2026-05-18 18:04:29.896Z | 273.151° WNW | 2026-05-18 18:10:29.896Z | 317.146° NNW | 23.971° | 2026-05-18 18:16:29.896Z | 14.444° NNE |
| 7 mins | 2026-05-18 23:56:29.896Z | 337.993° N | 2026-05-19 00:00:29.896Z | 51.533° ENE | 35.329° | 2026-05-19 00:03:29.896Z | 115.392° SE |
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 |
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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings
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