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

1 day 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 1 day ago

0 IRIDIUM 33 DEB
1 39781U 97051AAN 25120.90638922  .00005373  00000-0  22587-2 0  9993
2 39781  86.3738 350.5818 0181261 267.6796 107.8614 14.17241476 49060

Epoch: 2025-04-30T21:45Z

Definitive object data (Epoch: 2025-04-30T21:45:12.028Z)

Latitude

17.455°

Longitude

166.33251°

Altitude

879.369 km

Speed

7.392 km/s

True Right ascension

23h 26m 52s

True Declination

17° 21' 31"

Sunlit

Object was in daylight at TLE epoch

Visualization TLE readout

Latitude

-7.31002°

Longitude

-14.84527°

Altitude

806.388 km

Speed

7.466 km/s

Apparent Right ascension

12h 02m 45s

Apparent Declination

-65° 23' 55"

Sunlit

Object is in full shadow

Visualization observer readout

Local Sidereal Time

11:03:20

Azimuth

173.626° S

Elevation

-15.95°

Doppler factor

Orbital elements

Apogee altitude

962.37 km

Perigee altitude

700.999 km

Semi-major axis

7,209.822 km

Eccentricity

0.0181261

Inclination

86.3738°

RAAN

350.5818°

Arg. of periapsis

267.6796°

True anomaly

109.82435°

Mean anomaly

107.8614°

Eccentric anomaly

108.84428°

Mean motion

3.54533 °/min

BSTAR

0.0022587

Orbital period

101.54 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.
6 mins	2025-05-02 04:47:36.236Z	314.11° NW	2025-05-02 04:50:36.236Z	280.131° WNW	16.617°	2025-05-02 04:53:36.236Z	247.092° WSW
6 mins	2025-05-02 14:29:36.236Z	109.696° ESE	2025-05-02 14:32:36.236Z	72.363° E	19.086°	2025-05-02 14:35:36.236Z	39.455° NE
9 mins	2025-05-02 16:09:36.236Z	204.014° SW	2025-05-02 16:13:36.236Z	279.406° WNW	39.775°	2025-05-02 16:18:36.236Z	351.686° N
9 mins	2025-05-03 02:48:36.236Z	15.609° NNE	2025-05-03 02:52:36.236Z	88.867° E	37.601°	2025-05-03 02:57:36.236Z	157.482° SSE

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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