COSMOS 2251 DEB, 33984
Orbit data source: Space-Track
COSMOS 2251 DEB, 33984 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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33984 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, 0.2 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 2251 DEB
1 33984U 93036FT 26206.28946277 .00002896 00000-0 50559-3 0 9991
2 33984 74.0074 272.7582 0022755 44.1275 22.5520 14.68270577923601Epoch: 2026-07-25T06:56Z
TLE epoch observation values (Epoch: 2026-07-25T06:56:49.583Z)
Latitude
62.16355°
Longitude
-101.78051°
Altitude
662.094 km
Speed
7.54 km/s
True Right ascension
20h 21m 43s
True Declination
62° 01' 10"
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
00:11:12
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
680.21 km
Perigee altitude
648.161 km
Semi-major axis
7,042.322 km
Eccentricity
0.00228
Inclination
74.0074°
RAAN
272.7582°
Arg. of periapsis
44.1275°
True anomaly
22.65227°
Mean anomaly
22.552°
Eccentric anomaly
22.60211°
Mean motion
3.67256 °/min
Orbital period
98.02 mins
BSTAR
0.00050559
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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. |
|---|---|---|---|---|---|---|---|
| 8 mins | 2026-07-26 15:55:04.383Z | 334.716° NNW | 2026-07-26 15:59:04.383Z | 218.038° SW | 42.499° | 2026-07-26 16:03:04.383Z | 170.933° S |
| 6 mins | 2026-07-27 04:34:04.383Z | 140.968° SSE | 2026-07-27 04:37:04.383Z | 89.46° E | 21.136° | 2026-07-27 04:40:04.383Z | 48.209° ENE |
| 6 mins | 2026-07-27 06:14:04.383Z | 249.647° W | 2026-07-27 06:16:04.383Z | 290.763° WNW | 27.695° | 2026-07-27 06:20:04.383Z | 357.491° 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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