COSMOS 2251 DEB, 35284
Orbit data source: Space-Track
COSMOS 2251 DEB, 35284 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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35284 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: 1 day ago
TLE from 1 day ago
0 COSMOS 2251 DEB
1 35284U 93036AJN 26237.22000744 .00000254 00000-0 91612-4 0 9996
2 35284 74.0497 153.9262 0016544 175.8167 335.3793 14.38544595691993Epoch: 2026-08-25T05:16Z
TLE epoch observation values (Epoch: 2026-08-25T05:16:48.642Z)
Latitude
27.72162°
Longitude
-87.35839°
Altitude
755.663 km
Speed
7.485 km/s
True Right ascension
21h 41m 20s
True Declination
27° 34' 49"
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
01:14:05
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
772.742 km
Perigee altitude
749.12 km
Semi-major axis
7,139.068 km
Eccentricity
0.00165
Inclination
74.0497°
RAAN
153.9262°
Arg. of periapsis
175.8167°
True anomaly
335.30017°
Mean anomaly
335.3793°
Eccentric anomaly
335.33975°
Mean motion
3.59816 °/min
Orbital period
100.05 mins
BSTAR
0.000091612
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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. |
|---|---|---|---|---|---|---|---|
| 9 mins | 2026-08-26 19:04:54.227Z | 173.318° S | 2026-08-26 19:08:54.227Z | 115.847° SE | 35.861° | 2026-08-26 19:13:54.227Z | 32.029° NE |
| 6 mins | 2026-08-26 20:48:54.227Z | 264.221° W | 2026-08-26 20:51:54.227Z | 308.105° NW | 19.901° | 2026-08-26 20:54:54.227Z | 346.126° N |
| 8 mins | 2026-08-27 05:33:54.227Z | 346.295° N | 2026-08-27 05:36:54.227Z | 31.529° NE | 44° | 2026-08-27 05:41:54.227Z | 157.277° SSE |
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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