COSMOS 2251 DEB, 33973
Orbit data source: Space-Track
COSMOS 2251 DEB, 33973 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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33973 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: 8 hours ago
TLE from 8 hours ago
0 COSMOS 2251 DEB
1 33973U 93036FG 26264.79664416 .00000182 00000-0 58518-4 0 9991
2 33973 74.0070 294.2782 0045119 43.4849 71.8489 14.45614390926901Epoch: 2026-09-21T19:07Z
TLE epoch observation values (Epoch: 2026-09-21T19:07:10.055Z)
Latitude
60.02111°
Longitude
157.19847°
Altitude
739.988 km
Speed
7.496 km/s
True Right ascension
05h 38m 38s
True Declination
59° 52' 18"
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
19:59:52
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
769.73 km
Perigee altitude
705.519 km
Semi-major axis
7,115.761 km
Eccentricity
0.00451
Inclination
74.007°
RAAN
294.2782°
Arg. of periapsis
43.4849°
True anomaly
72.34106°
Mean anomaly
71.8489°
Eccentric anomaly
72.09489°
Mean motion
3.61586 °/min
Orbital period
99.56 mins
BSTAR
0.000058518
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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 | 2026-09-22 03:00:22.215Z | 180.418° SSW | 2026-09-22 03:04:22.215Z | 123.74° SE | 53.603° | 2026-09-22 03:09:22.215Z | 28.349° NE |
| 4 mins | 2026-09-22 04:45:22.215Z | 284.958° WNW | 2026-09-22 04:46:22.215Z | 299.528° NW | 16.857° | 2026-09-22 04:49:22.215Z | 339.279° N |
| 8 mins | 2026-09-22 13:26:22.215Z | 342.458° N | 2026-09-22 13:29:22.215Z | 9.776° NNE | 84.714° | 2026-09-22 13:34:22.215Z | 161.521° S |
| 6 mins | 2026-09-23 02:17:22.215Z | 136.048° SSE | 2026-09-23 02:19:22.215Z | 101.795° ESE | 25.355° | 2026-09-23 02:23:22.215Z | 45.502° ENE |
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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