IRIDIUM 33 DEB, 39778
Orbit data source: Space-Track
IRIDIUM 33 DEB, 39778 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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39778 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 shape, 0.1 m
Radar Cross Section
Small (<0.1 m²)
Expand to show TLE details & historyLast TLE update: 2 days ago
TLE from 2 days ago
0 IRIDIUM 33 DEB
1 39778U 97051AAK 25311.05931108 .00005916 00000-0 14038-2 0 9994
2 39778 86.3790 58.7050 0009062 139.9114 220.2763 14.53814381601747Epoch: 2025-11-07T01:25Z
TLE epoch observation values (Epoch: 2025-11-07T01:25:24.477Z)
Latitude
-0.00001°
Longitude
-9.1557°
Altitude
721.202 km
Speed
7.492 km/s
True Right ascension
03h 54m 49s
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
18:55:06
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
716.578 km
Perigee altitude
703.731 km
Semi-major axis
7,088.292 km
Eccentricity
0.00091
Inclination
86.379°
RAAN
58.705°
Arg. of periapsis
139.9114°
True anomaly
220.20923°
Mean anomaly
220.2763°
Eccentric anomaly
220.24276°
Mean motion
3.6369 °/min
Orbital period
98.99 mins
BSTAR
0.0014038
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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. |
|---|---|---|---|---|---|---|---|
| 4 mins | 2025-11-09 06:26:06.953Z | 106.834° ESE | 2025-11-09 06:28:06.953Z | 81.992° E | 13.281° | 2025-11-09 06:30:06.953Z | 55.944° ENE |
| 7 mins | 2025-11-09 08:04:06.953Z | 201.974° SSW | 2025-11-09 08:07:06.953Z | 271.373° WNW | 40.198° | 2025-11-09 08:11:06.953Z | 351.591° N |
| 6 mins | 2025-11-09 18:26:06.953Z | 32.807° NE | 2025-11-09 18:29:06.953Z | 82.411° E | 23.647° | 2025-11-09 18:32:06.953Z | 129.121° SE |
| 6 mins | 2025-11-09 20:06:06.953Z | 317.341° NNW | 2025-11-09 20:08:06.953Z | 280.109° WNW | 25.963° | 2025-11-09 20:12:06.953Z | 218.661° SW |
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 ascending order |
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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings
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