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: 1 week ago
TLE from 1 week ago
0 IRIDIUM 33 DEB
1 39777U 97051AAJ 25252.67058385 .00005203 00000-0 11969-2 0 9991
2 39777 85.9601 220.5804 0064068 140.7645 219.8231 14.53971013588175Epoch: 2025-09-09T16:05Z
TLE epoch observation values (Epoch: 2025-09-09T16:05:38.444Z)
Latitude
-0.00007°
Longitude
-9.78781°
Altitude
750.799 km
Speed
7.461 km/s
True Right ascension
14h 42m 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
01:47:45
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
755.064 km
Perigee altitude
664.244 km
Semi-major axis
7,087.791 km
Eccentricity
0.00641
Inclination
85.9601°
RAAN
220.5804°
Arg. of periapsis
140.7645°
True anomaly
219.35581°
Mean anomaly
219.8231°
Eccentric anomaly
219.58917°
Mean motion
3.63728 °/min
Orbital period
98.98 mins
BSTAR
0.0011969
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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. |
|---|---|---|---|---|---|---|---|
| 5 mins | 2025-09-18 10:27:05.305Z | 311.585° NW | 2025-09-18 10:29:05.305Z | 282.917° WNW | 16.575° | 2025-09-18 10:32:05.305Z | 240.489° WSW |
| 7 mins | 2025-09-18 21:33:05.305Z | 169.739° S | 2025-09-18 21:36:05.305Z | 79.664° E | 43.292° | 2025-09-18 21:40:05.305Z | 8.629° NNE |
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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Click to sort rows by Secondary header in ascending order | Click to sort rows by Secondary name header in ascending order | Click to sort rows by Country header in ascending order | Click to sort rows by Owner header in ascending order | Click to sort rows by Obj. Type header in ascending order | Click to sort rows by Miss dist. header in ascending order | Click to sort rows by Rel. speed header in ascending order | Click to sort rows by Apr. angle header in ascending order | Click to sort rows by TCA header in ascending order |
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