COSMOS 2251 DEB, 34761
Orbit data source: Space-Track
COSMOS 2251 DEB, 34761 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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34761 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 34761U 93036AAF 26263.50785180 .00000806 00000-0 26791-3 0 9997
2 34761 74.0279 203.0813 0037502 175.4802 184.6699 14.38940655917019Epoch: 2026-09-20T12:11Z
TLE epoch observation values (Epoch: 2026-09-20T12:11:18.395Z)
Latitude
-0.00002°
Longitude
20.85362°
Altitude
791.308 km
Speed
7.444 km/s
True Right ascension
13h 32m 19s
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
12:57:43
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
786.39 km
Perigee altitude
732.854 km
Semi-major axis
7,137.759 km
Eccentricity
0.00375
Inclination
74.0279°
RAAN
203.0813°
Arg. of periapsis
175.4802°
True anomaly
184.63508°
Mean anomaly
184.6699°
Eccentric anomaly
184.65247°
Mean motion
3.59915 °/min
Orbital period
100.02 mins
BSTAR
0.00026791
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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 | 2026-09-20 20:38:18.328Z | 165.371° S | 2026-09-20 20:43:18.328Z | 92.248° ESE | 35.547° | 2026-09-20 20:47:18.328Z | 38.512° NE |
| 7 mins | 2026-09-20 22:22:18.328Z | 255.865° W | 2026-09-20 22:25:18.328Z | 305.903° NW | 27.432° | 2026-09-20 22:29:18.328Z | 355.974° N |
| 8 mins | 2026-09-21 07:07:18.328Z | 354.711° N | 2026-09-21 07:10:18.328Z | 49.384° ENE | 56.855° | 2026-09-21 07:15:18.328Z | 147.153° SSE |
| 4 mins | 2026-09-21 08:50:18.328Z | 286.918° WNW | 2026-09-21 08:52:18.328Z | 260.877° W | 14.833° | 2026-09-21 08:54:18.328Z | 236.206° WSW |
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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