IRIDIUM 33 DEB, 39777
Orbit data source: Space-Track
IRIDIUM 33 DEB, 39777 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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39777 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 39777U 97051AAJ 25239.38704412 .00005953 00000-0 13794-2 0 9993
2 39777 85.9593 227.0033 0061712 185.9894 174.0583 14.53756031586240Epoch: 2025-08-27T09:17Z
TLE epoch observation values (Epoch: 2025-08-27T09:17:20.611Z)
Latitude
0.00003°
Longitude
111.80229°
Altitude
760.02 km
Speed
7.451 km/s
True Right ascension
15h 08m 00s
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
18:05:10
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
754.098 km
Perigee altitude
666.609 km
Semi-major axis
7,088.491 km
Eccentricity
0.00617
Inclination
85.9593°
RAAN
227.0033°
Arg. of periapsis
185.9894°
True anomaly
174.13095°
Mean anomaly
174.0583°
Eccentric anomaly
174.09468°
Mean motion
3.63674 °/min
Orbital period
98.99 mins
BSTAR
0.0013794
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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. |
|---|---|---|---|---|---|---|---|
| 7 mins | 2025-08-31 11:20:31.854Z | 345.378° N | 2025-08-31 11:23:31.854Z | 287.934° WNW | 40.536° | 2025-08-31 11:27:31.854Z | 193.52° SSW |
| 6 mins | 2025-08-31 22:27:31.854Z | 122.419° SE | 2025-08-31 22:30:31.854Z | 77.762° E | 20.545° | 2025-08-31 22:33:31.854Z | 37.177° NE |
| 7 mins | 2025-09-01 00:06:31.854Z | 222.592° SW | 2025-09-01 00:09:31.854Z | 281.613° WNW | 31.271° | 2025-09-01 00:13:31.854Z | 343.529° 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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Event ID | Pc | Md | Secondary | Secondary name | Country | Click to unsort rows by TCA header |
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Authenticating...
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