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

17 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 17 hours ago

0 IRIDIUM 33 DEB
1 39777U 97051AAJ 25121.41964489  .00020805  00000-0  50231-2 0  9999
2 39777  85.9580 283.9969 0064117 223.3567 136.2585 14.51786446569111

Epoch: 2025-05-01T10:04Z

Definitive object data (Epoch: 2025-05-01T10:04:17.318Z)

Latitude

0°

Longitude

-86.66613°

Altitude

755.914 km

Speed

7.459 km/s

True Right ascension

18h 55m 59s

True Declination

0° 00' 00"

Sunlit

Object was in daylight at TLE epoch

Visualization TLE readout

Latitude

23.55836°

Longitude

91.23077°

Altitude

702.934 km

Speed

7.517 km/s

Apparent Right ascension

03h 45m 24s

Apparent Declination

-11° 34' 34"

Sunlit

Object is in daylight

Visualization observer readout

Local Sidereal Time

11:00:55

Azimuth

273.057° WNW

Elevation

-21.833°

Doppler factor

Orbital elements

Apogee altitude

762.259 km

Perigee altitude

671.278 km

Semi-major axis

7,094.906 km

Eccentricity

0.0064117

Inclination

85.958°

RAAN

283.9969°

Arg. of periapsis

223.3567°

True anomaly

136.76356°

Mean anomaly

136.2585°

Eccentric anomaly

136.51132°

Mean motion

3.63181 °/min

BSTAR

0.0050231

Orbital period

99.12 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.
9 mins	2025-05-02 10:59:12.100Z	165.558° S	2025-05-02 11:04:12.100Z	87.438° E	39.574°	2025-05-02 11:08:12.100Z	14.976° NNE
4 mins	2025-05-02 12:42:12.100Z	260.542° W	2025-05-02 12:44:12.100Z	286.965° WNW	15.52°	2025-05-02 12:46:12.100Z	312.822° NW
8 mins	2025-05-02 23:03:12.100Z	349.48° N	2025-05-02 23:06:12.100Z	308.56° NW	41.993°	2025-05-02 23:11:12.100Z	187.396° SSW

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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