IRIDIUM 33 DEB, 39778

Orbit data source: Space-Track

IRIDIUM 33 DEB, 39778 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/39778?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

39778, 1997-051AAK

Orbit

LEO

Last TLE update

14 hours 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 14 hours ago

0 IRIDIUM 33 DEB
1 39778U 97051AAK 25191.51783181  .00001909  00000-0  46085-3 0  9993
2 39778  86.3791 110.5291 0007145 163.5909 196.5530 14.52696253611627

Epoch: 2025-07-10T12:25Z

TLE epoch observation values (Epoch: 2025-07-10T12:25:40.668Z)

Latitude

0.00001°

Longitude

-4.57332°

Altitude

724.793 km

Speed

7.49 km/s

True Right ascension

07h 22m 06s

True Declination

0° 00' 00"

Sunlit

Object was in daylight at epoch

Visualization orbit readout

Latitude

-86.1041°

Longitude

-72.39049°

Altitude

747.319 km

Speed

7.479 km/s

Apparent Right ascension

03h 08m 47s

Apparent Declination

-64° 14' 53"

Sunlit

Object is in daylight

Visualization observer readout

Local Sidereal Time

15:10:34

Azimuth

179.531° S

Elevation

-65.667°

Doppler factor

Orbital elements

Apogee altitude

718.862 km

Perigee altitude

708.727 km

Semi-major axis

7,091.932 km

Eccentricity

0.00071

Inclination

86.3791°

RAAN

110.5291°

Arg. of periapsis

163.5909°

True anomaly

Unknown

Mean anomaly

196.553°

Eccentric anomaly

Unknown

Mean motion

3.6341 °/min

Orbital period

99.06 mins

BSTAR

0.00046085

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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, 39779

IRIDIUM 33 DEB, 39780 (Decayed)

IRIDIUM 33 DEB, 39781

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.
5 mins	2025-07-11 05:32:56.386Z	41.613° NE	2025-07-11 05:35:56.386Z	81.398° E	15.01°	2025-07-11 05:37:56.386Z	107.422° ESE
8 mins	2025-07-11 07:11:56.386Z	341.236° N	2025-07-11 07:14:56.386Z	287.913° WNW	37.186°	2025-07-11 07:19:56.386Z	197.635° SSW
6 mins	2025-07-11 18:19:56.386Z	123.855° SE	2025-07-11 18:21:56.386Z	89.235° E	24.514°	2025-07-11 18:25:56.386Z	29.085° NE
6 mins	2025-07-11 19:58:56.386Z	233.741° WSW	2025-07-11 20:01:56.386Z	288.486° WNW	25.359°	2025-07-11 20:04:56.386Z	333.475° NNW

Authenticating...

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Check out IRIDIUM 33 DEB, 39778 on other resources

View IRIDIUM 33 DEB, 39778 on Heavens-Above

View IRIDIUM 33 DEB, 39778 on Keep Track

View IRIDIUM 33 DEB, 39778 on Celestrak

View IRIDIUM 33 DEB, 39778 on Gunter's Space Page

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