IRIDIUM 33 DEB, 39781
Orbit data source: Space-Track
IRIDIUM 33 DEB, 39781 is space debris in LEO originally from a launch on Sun, 14 Sep 1997 UTC launched from the Tyuratam Missile And Space Complex (TTMTR). 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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39781 intel report (Beta)
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Edit Public Description
Identifier
Orbit
Country
USRelated business
Manufacturer
Unknown
Mission
Spacecraft
Bus & Motor
Unknown
Mass
Unknown
Launch date (UTC)
Launch vehicle
Unknown
Launch site
Object type
Shape & HBR
Unknown
Radar Cross Section
Small (<0.1 m²)
Expand to show TLE details & historyLast TLE update: 3 days ago
TLE from 3 days ago
0 IRIDIUM 33 DEB
1 39781U 97051AAN 25256.87199369 .00002559 00000-0 10541-2 0 9996
2 39781 86.3738 294.8959 0181400 194.5979 290.1602 14.18024320 68323Epoch: 2025-09-13T20:55Z
TLE epoch observation values (Epoch: 2025-09-13T20:55:40.254Z)
Latitude
57.12792°
Longitude
162.28128°
Altitude
798.73 km
Speed
7.482 km/s
True Right ascension
07h 17m 11s
True Declination
56° 58' 19"
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
12:00:19
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
959.767 km
Perigee altitude
698.291 km
Semi-major axis
7,207.166 km
Eccentricity
0.01814
Inclination
86.3738°
RAAN
294.8959°
Arg. of periapsis
194.5979°
True anomaly
288.19389°
Mean anomaly
290.1602°
Eccentric anomaly
289.17854°
Mean motion
3.54729 °/min
Orbital period
101.49 mins
BSTAR
0.0010541
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Other satellites on launch #51 in the year 1997 (1997-09-14 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.IRIDIUM 33 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. |
|---|---|---|---|---|---|---|---|
| 11 mins | 2025-09-17 02:20:50.166Z | 155.909° SSE | 2025-09-17 02:25:50.166Z | 99.433° ESE | 35.174° | 2025-09-17 02:31:50.166Z | 15.7° NNE |
| 8 mins | 2025-09-17 04:04:50.166Z | 238.084° WSW | 2025-09-17 04:07:50.166Z | 274.635° WNW | 23.004° | 2025-09-17 04:12:50.166Z | 334.723° NNW |
| 8 mins | 2025-09-17 14:41:50.166Z | 351.145° N | 2025-09-17 14:45:50.166Z | 269.082° W | 43.217° | 2025-09-17 14:49:50.166Z | 188.827° SSW |
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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