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 25193.61468227  .00000910  00000-0  37142-3 0  9996
2 39781  86.3759 320.8270 0182219  36.8853 337.5695 14.17673579700483

Epoch: 2025-07-12T14:45Z

TLE epoch observation values (Epoch: 2025-07-12T14:45:08.548Z)

Latitude

13.57856°

Longitude

169.66347°

Altitude

714.385 km

Speed

7.562 km/s

True Right ascension

21h 26m 47s

True Declination

13° 29' 59"

Sunlit

Object was in full shadow at epoch

Visualization orbit readout

Latitude

20.9618°

Longitude

-13.93227°

Altitude

923.408 km

Speed

7.347 km/s

Apparent Right ascension

07h 32m 57s

Apparent Declination

-33° 35' 56"

Sunlit

Object is in daylight

Visualization observer readout

Local Sidereal Time

09:56:17

Azimuth

209.619° SW

Elevation

9.372°

Doppler factor

Orbital elements

Apogee altitude

961.568 km

Perigee altitude

698.868 km

Semi-major axis

7,208.355 km

Eccentricity

0.01822

Inclination

86.3759°

RAAN

320.827°

Arg. of periapsis

36.8853°

True anomaly

Unknown

Mean anomaly

337.5695°

Eccentric anomaly

Unknown

Mean motion

3.54641 °/min

Orbital period

101.51 mins

BSTAR

0.00037142

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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.
8 mins	2025-07-16 08:34:51.478Z	169.977° S	2025-07-16 08:38:51.478Z	102.087° ESE	42.358°	2025-07-16 08:42:51.478Z	10.126° NNE
6 mins	2025-07-16 19:13:51.478Z	44.41° NE	2025-07-16 19:15:51.478Z	71.735° E	21.3°	2025-07-16 19:19:51.478Z	122.251° SE
9 mins	2025-07-16 20:54:51.478Z	335.564° NNW	2025-07-16 20:57:51.478Z	287.012° WNW	35.376°	2025-07-16 21:03:51.478Z	202.225° 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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