COSMOS 252 DEB *, 3901
Orbit data source: Space-Track
COSMOS 252 DEB *, 3901 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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3901 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, 0.1 m
Radar Cross Section
Medium (>0.1 m² and <1 m²)
Expand to show TLE details & historyLast TLE update: 1 day ago
TLE from 1 day ago
0 COSMOS 252 DEB *
1 03901U 68097BN 26234.71650209 .00000451 00000-0 41421-3 0 9995
2 03901 61.2831 354.0968 0806057 273.5875 77.3362 12.96039774686167Epoch: 2026-08-22T17:11Z
TLE epoch observation values (Epoch: 2026-08-22T17:11:45.780Z)
Latitude
-0.00003°
Longitude
125.13312°
Altitude
1,192.342 km
Speed
7.299 km/s
True Right ascension
23h 36m 23s
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
13:58:41
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
1,893.786 km
Perigee altitude
659.73 km
Semi-major axis
7,654.895 km
Eccentricity
0.08061
Inclination
61.2831°
RAAN
354.0968°
Arg. of periapsis
273.5875°
True anomaly
86.51212°
Mean anomaly
77.3362°
Eccentric anomaly
81.90859°
Mean motion
3.24067 °/min
Orbital period
111.09 mins
BSTAR
0.00041421
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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 | 2026-08-24 08:11:12.309Z | 155.953° SSE | 2026-08-24 08:17:12.309Z | 106.687° ESE | 25.655° | 2026-08-24 08:25:12.309Z | 54.687° ENE |
| 18 mins | 2026-08-24 10:04:12.309Z | 222.405° SW | 2026-08-24 10:11:12.309Z | 280.096° WNW | 44.442° | 2026-08-24 10:22:12.309Z | 36.253° NE |
| 16 mins | 2026-08-24 12:02:12.309Z | 280.568° WNW | 2026-08-24 12:09:12.309Z | 334.844° NNW | 28.764° | 2026-08-24 12:18:12.309Z | 31.927° NE |
| 14 mins | 2026-08-24 14:02:12.309Z | 319.875° NNW | 2026-08-24 14:08:12.309Z | 357.424° N | 21.818° | 2026-08-24 14:16:12.309Z | 46.403° ENE |
| 17 mins | 2026-08-24 16:00:12.309Z | 332.635° NNW | 2026-08-24 16:08:12.309Z | 27.542° NE | 29.727° | 2026-08-24 16:17:12.309Z | 89.705° E |
| 18 mins | 2026-08-24 17:56:12.309Z | 323.989° NNW | 2026-08-24 18:05:12.309Z | 11.522° NNE | 44.684° | 2026-08-24 18:14:12.309Z | 140.876° SSE |
| 14 mins | 2026-08-24 19:53:12.309Z | 299.96° NW | 2026-08-24 20:00:12.309Z | 252.088° W | 25.176° | 2026-08-24 20:07:12.309Z | 200.996° SSW |
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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