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

2 weeks 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 2 weeks ago

0 IRIDIUM 33 DEB
1 39781U 97051AAN 25105.93682025  .00010243  00000-0  42826-2 0  9992
2 39781  86.3720 356.7114 0187391 315.5337  57.5605 14.17003693688069

Epoch: 2025-04-15T22:29Z

Definitive object data (Epoch: 2025-04-15T22:29:01.269Z)

Latitude

14.8715°

Longitude

176.08543°

Altitude

767.129 km

Speed

7.508 km/s

True Right ascension

23h 50m 41s

True Declination

14° 47' 12"

Sunlit

Object was in daylight at TLE epoch

Visualization TLE readout

Latitude

-50.09129°

Longitude

-5.33839°

Altitude

763.34 km

Speed

7.519 km/s

Apparent Right ascension

11h 06m 30s

Apparent Declination

-45° 29' 31"

Sunlit

Object is in full shadow

Visualization observer readout

Local Sidereal Time

22:30:28

Azimuth

226.901° WSW

Elevation

-81.354°

Doppler factor

Orbital elements

Apogee altitude

967.612 km

Perigee altitude

697.371 km

Semi-major axis

7,210.629 km

Eccentricity

0.0187391

Inclination

86.372°

RAAN

356.7114°

Arg. of periapsis

315.5337°

True anomaly

59.3955°

Mean anomaly

57.5605°

Eccentric anomaly

58.47572°

Mean motion

3.54473 °/min

BSTAR

0.0042826

Orbital period

101.56 mins

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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.
10 mins	2025-04-27 15:49:31.409Z	164.24° S	2025-04-27 15:54:31.409Z	90.718° ESE	40.492°	2025-04-27 15:59:31.409Z	12.399° NNE
6 mins	2025-04-27 17:34:31.409Z	255.943° W	2025-04-27 17:36:31.409Z	280.072° WNW	17.917°	2025-04-27 17:40:31.409Z	325.569° NNW
6 mins	2025-04-28 02:30:31.409Z	43.05° NE	2025-04-28 02:33:31.409Z	80.665° E	19.69°	2025-04-28 02:36:31.409Z	115.3° SE
10 mins	2025-04-28 04:10:31.409Z	345.787° N	2025-04-28 04:15:31.409Z	268.283° W	39.313°	2025-04-28 04:20:31.409Z	198.484° SSW

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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