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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https://www.satcat.com/sats-embedded/39781?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

39781, 1997-051AAN

Orbit

LEO

Last TLE update

3 days ago

Origin

Iridium Communications Inc. (US)

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 3 days ago

0 IRIDIUM 33 DEB
1 39781U 97051AAN 25172.18907891  .00002743  00000-0  11302-2 0  9995
2 39781  86.3742 329.5949 0185550 103.8043  72.5283 14.17624942 56327

Epoch: 2025-06-21T04:32Z

TLE epoch observation values (Epoch: 2025-06-21T04:32:16.417Z)

Latitude

1.51284°

Longitude

171.79949°

Altitude

798.336 km

Speed

7.474 km/s

True Right ascension

09h 57m 59s

True Declination

1° 30' 14"

Sunlit

Object was in daylight at epoch

Visualization orbit readout

Latitude

-4.43874°

Longitude

-9.78781°

Altitude

851.452 km

Speed

7.419 km/s

Apparent Right ascension

19h 05m 07s

Apparent Declination

-35° 46' 41"

Sunlit

Object is in full shadow

Visualization observer readout

Local Sidereal Time

01:53:49

Azimuth

246.878° WSW

Elevation

-30.423°

Doppler factor

Orbital elements

Apogee altitude

964.137 km

Perigee altitude

696.629 km

Semi-major axis

7,208.52 km

Eccentricity

0.01856

Inclination

86.3742°

RAAN

329.5949°

Arg. of periapsis

103.8043°

True anomaly

Unknown

Mean anomaly

72.5283°

Eccentric anomaly

Unknown

Mean motion

3.54629 °/min

Orbital period

101.51 mins

BSTAR

0.0011302

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Other satellites on launch #51 in the year 1997 (1997-09-14 UTC)

IRIDIUM 29, 24944

IRIDIUM 33 DEB, 33857 (Decayed)

IRIDIUM 33 DEB, 38473 (Decayed)

IRIDIUM 33 DEB, 38474

IRIDIUM 33 DEB, 38475 (Decayed)

IRIDIUM 33 DEB, 38476 (Decayed)

IRIDIUM 33 DEB, 38477

IRIDIUM 33 DEB, 39593 (Decayed)

IRIDIUM 33 DEB, 39594

IRIDIUM 33 DEB, 39595 (Decayed)

IRIDIUM 33 DEB, 39777

IRIDIUM 33 DEB, 39778

IRIDIUM 33 DEB, 39779

IRIDIUM 33 DEB, 39780 (Decayed)

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.
9 mins	2025-06-24 22:04:16.636Z	7.503° NNE	2025-06-24 22:08:16.636Z	73.662° E	40.258°	2025-06-24 22:13:16.636Z	164.523° S
4 mins	2025-06-25 09:31:16.636Z	102.847° ESE	2025-06-25 09:33:16.636Z	75.442° E	15.412°	2025-06-25 09:35:16.636Z	49.499° ENE
7 mins	2025-06-25 11:11:16.636Z	208.637° SW	2025-06-25 11:14:16.636Z	269.819° W	37.252°	2025-06-25 11:18:16.636Z	347.467° N

Authenticating...

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Check out IRIDIUM 33 DEB, 39781 on other resources

View IRIDIUM 33 DEB, 39781 on Heavens-Above

View IRIDIUM 33 DEB, 39781 on Keep Track

View IRIDIUM 33 DEB, 39781 on Celestrak

View IRIDIUM 33 DEB, 39781 on Gunter's Space Page

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