COSMOS 2251 DEB, 35587
Orbit data source: Space-Track
COSMOS 2251 DEB, 35587 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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35587 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 35587U 93036AME 26059.24803793 .00001466 00000-0 22219-3 0 9993
2 35587 74.0013 267.4326 0099796 75.2926 285.9281 14.71790283674864Epoch: 2026-02-28T05:57Z
TLE epoch observation values (Epoch: 2026-02-28T05:57:10.477Z)
Latitude
0°
Longitude
20.06606°
Altitude
639.396 km
Speed
7.549 km/s
True Right ascension
17h 49m 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
10:45:08
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
723.113 km
Perigee altitude
582.778 km
Semi-major axis
7,031.083 km
Eccentricity
0.00998
Inclination
74.0013°
RAAN
267.4326°
Arg. of periapsis
75.2926°
True anomaly
284.82472°
Mean anomaly
285.9281°
Eccentric anomaly
285.37678°
Mean motion
3.68137 °/min
Orbital period
97.79 mins
BSTAR
0.00022219
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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 | 2026-03-01 14:42:10.929Z | 187.251° SSW | 2026-03-01 14:46:10.929Z | 73.34° E | 41.713° | 2026-03-01 14:49:10.929Z | 26.255° NE |
| 7 mins | 2026-03-02 00:56:10.929Z | 343.418° N | 2026-03-02 00:59:10.929Z | 131.721° SE | 44.554° | 2026-03-02 01:03:10.929Z | 160.353° 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 descending order |
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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings
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