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: 4 days ago
TLE from 4 days ago
0 IRIDIUM 33 DEB
1 39781U 97051AAN 25239.41989668 .00002871 00000-0 11920-2 0 9995
2 39781 86.3732 302.0484 0179887 249.8539 124.1487 14.17848690 65859Epoch: 2025-08-27T10:04Z
TLE epoch observation values (Epoch: 2025-08-27T10:04:39.073Z)
Latitude
15.6315°
Longitude
175.99895°
Altitude
909.385 km
Speed
7.36 km/s
True Right ascension
20h 12m 14s
True Declination
15° 32' 40"
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
18:08:29
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
959.282 km
Perigee altitude
699.966 km
Semi-major axis
7,207.761 km
Eccentricity
0.01799
Inclination
86.3732°
RAAN
302.0484°
Arg. of periapsis
249.8539°
True anomaly
125.83312°
Mean anomaly
124.1487°
Eccentric anomaly
124.99305°
Mean motion
3.54685 °/min
Orbital period
101.5 mins
BSTAR
0.001192
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Other satellites on launch #51 in the year 1997 (1997-09-14 UTC)
IRIDIUM 33 DEB Visibility forecast
Observer location: undefined°, undefined°
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. |
|---|---|---|---|---|---|---|---|
| 10 mins | 2025-08-31 03:52:50.413Z | 152.787° SSE | 2025-08-31 03:57:50.413Z | 89.267° E | 34.589° | 2025-08-31 04:02:50.413Z | 19.385° NNE |
| 8 mins | 2025-08-31 05:36:50.413Z | 239.714° WSW | 2025-08-31 05:39:50.413Z | 279.742° WNW | 24.629° | 2025-08-31 05:44:50.413Z | 337.433° NNW |
| 9 mins | 2025-08-31 16:13:50.413Z | 352.848° N | 2025-08-31 16:17:50.413Z | 311.727° NW | 43.335° | 2025-08-31 16:22:50.413Z | 186.504° 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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Event ID | Pc | Md | Secondary | Secondary name | Country | Click to unsort rows by TCA header |
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Authenticating...
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