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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Identifier
39781, 1997-051AAN
Orbit
LEO
Last TLE update
1 week ago
Origin
Manufacturer
Unknown
Mission
Spacecraft
Bus & Motor
Unknown
Mass
Unknown
Launch date (UTC)
1997-09-14 (28 years ago)
Launch vehicle
Unknown
Launch site
Tyuratam Missile And Space Complex (TTMTR)
Object type
Payload
Rocket body
Debris
Shape & HBR
Unknown
Radar Cross Section
Small (<0.1 m²)

Expand to show TLE details & history

TLE from 1 week ago
0 IRIDIUM 33 DEB
1 39781U 97051AAN 25179.16649484  .00001782  00000-0  73232-3 0  9994
2 39781  86.3772 326.7444 0184505  82.3940  40.6991 14.17638565 57313
Epoch: 2025-06-28T03:59Z
TLE epoch observation values (Epoch: 2025-06-28T03:59:45.154Z)
Latitude
55.43681°
Longitude
165.05249°
Altitude
742.804 km
Speed
7.54 km/s
True Right ascension
09h 25m 59s
True Declination
55° 16' 32"
Sunlit
Object was in daylight at epoch
Visualization orbit readout
Latitude
-57.24938°
Longitude
171.97894°
Altitude
987.932 km
Speed
7.289 km/s
Apparent Right ascension
15h 22m 57s
Apparent Declination
-71° 31' 41"
Sunlit
Object is in daylight
Visualization observer readout
Local Sidereal Time
06:58:29
Azimuth
157.158° SSE
Elevation
-48.751°
Doppler factor
1
Orbital elements
Apogee altitude
963.337 km
Perigee altitude
697.337 km
Semi-major axis
7,208.474 km
Eccentricity
0.01845
Inclination
86.3772°
RAAN
326.7444°
Arg. of periapsis
82.394°
True anomaly
Unknown
Mean anomaly
40.6991°
Eccentric anomaly
Unknown
Mean motion
3.54632 °/min
Orbital period
101.51 mins
BSTAR
0.00073232
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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 mins2025-07-07 20:04:59.421Z35.704° NE2025-07-07 20:07:59.421Z75.996° E20.736°2025-07-07 20:11:59.421Z125.858° SE
8 mins2025-07-07 21:46:59.421Z332.766° NNW2025-07-07 21:49:59.421Z278.107° WNW34.013°2025-07-07 21:54:59.421Z205.545° SW
7 mins2025-07-08 09:10:59.421Z157.353° SSE2025-07-08 09:13:59.421Z93.801° ESE38.249°2025-07-08 09:17:59.421Z15.215° NNE
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