COSMOS 2251 DEB, 34400 (Decayed)
Orbit data source: Space-Track
COSMOS 2251 DEB, 34400 was 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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34400 intel report (Beta)
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Edit Public Description
Identifier
Orbit
Country
CISRelated business
Manufacturer
Unknown
Mission
Decayed 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: 2 weeks ago
TLE from 2 weeks ago
0 COSMOS 2251 DEB
1 34400U 93036QR 26021.19340091 .06892631 16699+0 77987-2 0 9995
2 34400 73.9370 293.8298 0011036 173.4328 186.7066 16.15314223905930Epoch: 2026-01-21T04:38Z
TLE epoch observation values (Epoch: 2026-01-21T04:38:29.838Z)
Latitude
0.00003°
Longitude
103.64105°
Altitude
242.37 km
Speed
7.757 km/s
True Right ascension
19h 35m 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
12:41:32
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
237.036 km
Perigee altitude
222.451 km
Semi-major axis
6,607.881 km
Eccentricity
0.0011
Inclination
73.937°
RAAN
293.8298°
Arg. of periapsis
173.4328°
True anomaly
186.69185°
Mean anomaly
186.7066°
Eccentric anomaly
186.69922°
Mean motion
4.04064 °/min
Orbital period
89.09 mins
BSTAR
0.0077987
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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 | 2026-02-06 12:28:41.417Z | 13.573° NNE | 2026-02-06 12:32:41.417Z | 100.437° ESE | 41.017° | 2026-02-06 12:37:41.417Z | 168.067° S |
| 9 mins | 2026-02-06 13:05:41.417Z | 170.765° S | 2026-02-06 13:10:41.417Z | 81.033° E | 42.84° | 2026-02-06 13:14:41.417Z | 10.613° NNE |
| 4 mins | 2026-02-06 13:25:41.417Z | 163.876° S | 2026-02-06 13:26:41.417Z | 128.1° SE | 42.934° | 2026-02-06 13:29:41.417Z | 10.771° NNE |
| 4 mins | 2026-02-06 19:43:41.417Z | 53.993° ENE | 2026-02-06 19:45:41.417Z | 336.416° NNW | 39.263° | 2026-02-06 19:47:41.417Z | 282.026° WNW |
| 36 mins | 2026-02-06 19:59:41.417Z | 72.09° E | 2026-02-06 20:30:41.417Z | 13.338° NNE | 39.717° | 2026-02-06 20:35:41.417Z | 86.83° E |
| 4 mins | 2026-02-06 20:47:41.417Z | 307.099° NW | 2026-02-06 20:49:41.417Z | 16.527° NNE | 39.96° | 2026-02-06 20:51:41.417Z | 84.371° E |
| 4 mins | 2026-02-07 02:50:41.417Z | 209.53° SW | 2026-02-07 02:51:41.417Z | 260.915° W | 43.191° | 2026-02-07 02:54:41.417Z | 347.923° N |
| 21 mins | 2026-02-07 03:09:41.417Z | 190.505° SSW | 2026-02-07 03:19:41.417Z | 234.366° WSW | 40.768° | 2026-02-07 03:30:41.417Z | 191.629° SSW |
| 5 mins | 2026-02-07 03:45:41.417Z | 340.363° N | 2026-02-07 03:47:41.417Z | 277.786° WNW | 40.603° | 2026-02-07 03:50:41.417Z | 192.6° SSW |
| 7 mins | 2026-02-07 09:42:41.417Z | 11.663° NNE | 2026-02-07 09:44:41.417Z | 49.263° ENE | 29.072° | 2026-02-07 09:49:41.417Z | 121.141° SE |
| 8 mins | 2026-02-07 10:13:41.417Z | 125.766° SE | 2026-02-07 10:17:41.417Z | 70.815° E | 32.196° | 2026-02-07 10:21:41.417Z | 357.569° 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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