COSMOS 2251 DEB, 35442
Orbit data source: Space-Track
COSMOS 2251 DEB, 35442 is space debris in LEO originally from a launch on Wed, 16 Jun 1993 UTC launched from the Plesetsk Missile And Space Complex (PKMTR). The debris from Iridium 33, an American commercial communications satellite, has been tracked extensively since its accidental collision with the defunct Russian satellite Cosmos 2251 in 2009. This event, occurring at high speed in low Earth orbit (LEO), generated thousands of pieces of space debris, significantly increasing the risk of further collisions. The Iridium 33 debris cloud has impacted space traffic management and orbital debris mitigation strategies, making it a subject of ongoing study in space situational awareness.
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35442 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
Small (<0.1 m²)
Expand to show TLE details & historyLast TLE update: 10 hours ago
TLE from 10 hours ago
0 COSMOS 2251 DEB
1 35442U 93036AKL 26112.23314030 .00012993 00000-0 13244-2 0 9997
2 35442 74.0238 198.8446 0003370 242.6989 117.3850 14.90715348892935Epoch: 2026-04-22T05:35Z
TLE epoch observation values (Epoch: 2026-04-22T05:35:43.321Z)
Latitude
-0.00005°
Longitude
-95.38343°
Altitude
599.462 km
Speed
7.56 km/s
True Right ascension
13h 15m 22s
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
22:51:45
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
595.618 km
Perigee altitude
590.919 km
Semi-major axis
6,971.406 km
Eccentricity
0.00034
Inclination
74.0238°
RAAN
198.8446°
Arg. of periapsis
242.6989°
True anomaly
117.41928°
Mean anomaly
117.385°
Eccentric anomaly
117.40214°
Mean motion
3.72874 °/min
Orbital period
96.55 mins
BSTAR
0.0013244
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Other satellites on launch #36 in the year 1993 (1993-06-16 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 2251 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. |
|---|---|---|---|---|---|---|---|
| 7 mins | 2026-04-22 17:26:21.535Z | 329.913° NNW | 2026-04-22 17:29:21.535Z | 264.484° W | 40.48° | 2026-04-22 17:33:21.535Z | 176.307° S |
| 4 mins | 2026-04-23 05:54:21.535Z | 122.808° SE | 2026-04-23 05:55:21.535Z | 105.877° ESE | 17.31° | 2026-04-23 05:58:21.535Z | 58.43° ENE |
| 6 mins | 2026-04-23 07:31:21.535Z | 239.327° WSW | 2026-04-23 07:33:21.535Z | 279.378° WNW | 29.345° | 2026-04-23 07:37:21.535Z | 358.761° N |
Co-orbital & Co-planar RSOs
Thresholds — Semi-major Axis: ±100 km, RAAN: ±3°, Inclination: ±5°
TCA is derived from TLE conjunctions
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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings
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