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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Identifier

39778, 1997-051AAK

Orbit

LEO

Last TLE update

4 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 4 days ago

0 IRIDIUM 33 DEB
1 39778U 97051AAK 25106.36395520  .00007070  00000-0  17426-2 0  9999
2 39778  86.3804 147.3594 0011016 108.4112 251.8292 14.52038566599264

Epoch: 2025-04-16T08:44Z

Definitive object data (Epoch: 2025-04-16T08:44:05.729Z)

Latitude

-0.00005°

Longitude

171.58425°

Altitude

724.521 km

Speed

7.492 km/s

True Right ascension

09h 49m 26s

True Declination

0° 00' 00"

Sunlit

Object was in full shadow at TLE epoch

Visualization TLE readout

Latitude

15.83447°

Longitude

-11.03009°

Altitude

718.298 km

Speed

7.499 km/s

Apparent Right ascension

20h 58m 26s

Apparent Declination

-10° 35' 42"

Sunlit

Object is in daylight

Visualization observer readout

Local Sidereal Time

08:01:37

Azimuth

332.861° NNW

Elevation

-58.087°

Doppler factor

Orbital elements

Apogee altitude

723.753 km

Perigee altitude

708.123 km

Semi-major axis

7,094.075 km

Eccentricity

0.0011016

Inclination

86.3804°

RAAN

147.3594°

Arg. of periapsis

108.4112°

True anomaly

251.70931°

Mean anomaly

251.8292°

Eccentric anomaly

251.76925°

Mean motion

3.63245 °/min

BSTAR

0.0017426

Orbital period

99.11 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, 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.
7 mins	2025-04-20 02:10:34.614Z	135.469° SSE	2025-04-20 02:13:34.614Z	88.052° E	25.614°	2025-04-20 02:17:34.614Z	27.497° NE
6 mins	2025-04-20 03:50:34.614Z	235.684° WSW	2025-04-20 03:53:34.614Z	288.601° WNW	24.08°	2025-04-20 03:56:34.614Z	332.567° NNW
7 mins	2025-04-20 14:12:34.614Z	12.22° NNE	2025-04-20 14:15:34.614Z	76.866° E	39.967°	2025-04-20 14:19:34.614Z	161.43° S

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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