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

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 39778U 97051AAK 25119.31888078  .00005248  00000-0  12883-2 0  9990
2 39778  86.3778 141.7601 0010703  75.3778 284.8614 14.52197377573906

Epoch: 2025-04-29T07:39Z

Definitive object data (Epoch: 2025-04-29T07:39:11.299Z)

Latitude

0°

Longitude

169.44276°

Altitude

719.616 km

Speed

7.497 km/s

True Right ascension

09h 27m 02s

True Declination

0° 00' 00"

Sunlit

Object was in daylight at TLE epoch

Visualization TLE readout

Latitude

-3.1012°

Longitude

168.02557°

Altitude

719.169 km

Speed

7.497 km/s

Apparent Right ascension

06h 45m 37s

Apparent Declination

-52° 02' 40"

Sunlit

Object is in daylight

Visualization observer readout

Local Sidereal Time

11:07:12

Azimuth

216.023° SW

Elevation

-18.033°

Doppler factor

Orbital elements

Apogee altitude

723.012 km

Perigee altitude

707.828 km

Semi-major axis

7,093.557 km

Eccentricity

0.0010703

Inclination

86.3778°

RAAN

141.7601°

Arg. of periapsis

75.3778°

True anomaly

284.74281°

Mean anomaly

284.8614°

Eccentric anomaly

284.80211°

Mean motion

3.63285 °/min

BSTAR

0.0012883

Orbital period

99.1 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.
6 mins	2025-05-02 12:18:28.277Z	35.371° NE	2025-05-02 12:21:28.277Z	77.286° E	18.796°	2025-05-02 12:24:28.277Z	119.344° SE
7 mins	2025-05-02 13:58:28.277Z	329.193° NNW	2025-05-02 14:01:28.277Z	262.368° W	32.111°	2025-05-02 14:05:28.277Z	206.397° SW
7 mins	2025-05-03 01:05:28.277Z	137.782° SSE	2025-05-03 01:08:28.277Z	78.873° E	29.274°	2025-05-03 01:12:28.277Z	21.864° NNE
6 mins	2025-05-03 02:45:28.277Z	244.665° WSW	2025-05-03 02:47:28.277Z	276.098° WNW	20.818°	2025-05-03 02:51:28.277Z	332.528° 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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