IRIDIUM 33 DEB, 39777

Orbit data source: Space-Track

IRIDIUM 33 DEB, 39777 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/39777?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

39777, 1997-051AAJ

Orbit

LEO

Last TLE update

2 weeks 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 2 weeks ago

0 IRIDIUM 33 DEB
1 39777U 97051AAJ 25106.94227801  .00073460  00000-0  17827-1 0  9998
2 39777  85.9576 290.9813 0063334 272.7268  86.6688 14.51254662594141

Epoch: 2025-04-16T22:36Z

Definitive object data (Epoch: 2025-04-16T22:36:52.82Z)

Latitude

-0.00004°

Longitude

106.43992°

Altitude

722.293 km

Speed

7.495 km/s

True Right ascension

19h 23m 55s

True Declination

0° 00' 00"

Sunlit

Object was in daylight at TLE epoch

Visualization TLE readout

Latitude

56.96055°

Longitude

107.48497°

Altitude

770.397 km

Speed

7.451 km/s

Apparent Right ascension

14h 04m 43s

Apparent Declination

27° 31' 39"

Sunlit

Object is in daylight

Visualization observer readout

Local Sidereal Time

22:37:02

Azimuth

315.302° NNW

Elevation

-7.062°

Doppler factor

Orbital elements

Apogee altitude

763.449 km

Perigee altitude

673.557 km

Semi-major axis

7,096.64 km

Eccentricity

0.0063334

Inclination

85.9576°

RAAN

290.9813°

Arg. of periapsis

272.7268°

True anomaly

87.39364°

Mean anomaly

86.6688°

Eccentric anomaly

87.03119°

Mean motion

3.63048 °/min

BSTAR

0.017827

Orbital period

99.16 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, 39778

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	2025-04-27 22:10:04.441Z	34.497° NE	2025-04-27 22:13:04.441Z	72.826° E	16.827°	2025-04-27 22:16:04.441Z	113.464° SE
7 mins	2025-04-27 23:50:04.441Z	334.947° NNW	2025-04-27 23:53:04.441Z	269.194° W	35.591°	2025-04-27 23:57:04.441Z	202.561° SW
6 mins	2025-04-28 10:57:04.441Z	127.057° SE	2025-04-28 10:59:04.441Z	93.782° ESE	25.798°	2025-04-28 11:03:04.441Z	30.827° NE
7 mins	2025-04-28 12:36:04.441Z	233.001° WSW	2025-04-28 12:39:04.441Z	284.053° WNW	26.009°	2025-04-28 12:43:04.441Z	339.066° N

Authenticating...

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Check out IRIDIUM 33 DEB, 39777 on other resources

View IRIDIUM 33 DEB, 39777 on Heavens-Above

View IRIDIUM 33 DEB, 39777 on Keep Track

View IRIDIUM 33 DEB, 39777 on Celestrak

View IRIDIUM 33 DEB, 39777 on Gunter's Space Page

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