IRIDIUM 33 DEB, 34146

Orbit data source: Space-Track

IRIDIUM 33 DEB, 34146 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

34146, 1997-051DZ

Orbit

LEO

Country

Related business

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 shape, 0.1 m

Radar Cross Section

Small (<0.1 m²)

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Last TLE update: 20 hours ago

TLE from 20 hours ago

0 IRIDIUM 33 DEB
1 34146U 97051DZ  25350.00378132  .00002584  00000-0  67263-3 0  9995
2 34146  86.2834 348.3589 0025809 210.1704 203.4774 14.49072903881542

Epoch: 2025-12-16T00:05Z

TLE epoch observation values (Epoch: 2025-12-16T00:05:26.706Z)

Latitude

53.46692°

Longitude

-92.89337°

Altitude

754.365 km

Speed

7.474 km/s

True Right ascension

23h 33m 26s

True Declination

53° 18' 08"

Sunlit

Object was in daylight at epoch

Visualization orbit readout

Latitude

Unknown

Longitude

Unknown

Altitude

Unknown

Speed

Unknown

Apparent Right ascension

Unknown

Apparent Declination

Unknown

Sunlit

N/A

Visualization observer readout

Local Sidereal Time

19:12:58

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

743.958 km

Perigee altitude

707.29 km

Semi-major axis

7,103.761 km

Eccentricity

0.00258

Inclination

86.2834°

RAAN

348.3589°

Arg. of periapsis

210.1704°

True anomaly

203.35992°

Mean anomaly

203.4774°

Eccentric anomaly

203.41863°

Mean motion

3.62502 °/min

Orbital period

99.31 mins

BSTAR

0.00067263

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Other satellites on launch #51 in the year 1997 (1997-09-14 UTC)

IRIDIUM 33 DEB, 38473 (Decayed)

IRIDIUM 33 DEB, 34774 (Decayed)

IRIDIUM 30, 24949 (Decayed)

IRIDIUM 33 DEB, 39780 (Decayed)

IRIDIUM 33 DEB, 33857 (Decayed)

IRIDIUM 33 DEB, 34351 (Decayed)

IRIDIUM 33 DEB, 44995 (Decayed)

IRIDIUM 33 DEB, 33773

IRIDIUM 33 DEB, 33776

IRIDIUM 33 DEB, 33881

IRIDIUM 33 DEB, 34928

IRIDIUM 33 DEB, 35918

IRIDIUM 33 DEB, 33960

IRIDIUM 33 DEB, 35809

IRIDIUM 33 DEB, 35080

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IRIDIUM 33 DEB Visibility forecast

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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.
8 mins	2025-12-17 00:49:31.020Z	192.994° SSW	2025-12-17 00:53:31.020Z	292.636° NW	42.666°	2025-12-17 00:57:31.020Z	355.84° N
6 mins	2025-12-17 11:14:31.020Z	35.863° NE	2025-12-17 11:17:31.020Z	84.89° E	22.435°	2025-12-17 11:20:31.020Z	128.124° SE
6 mins	2025-12-17 12:54:31.020Z	321.267° NNW	2025-12-17 12:56:31.020Z	285.022° WNW	27.561°	2025-12-17 13:00:31.020Z	217.857° SW

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Co-orbital & Co-planar RSOs

Thresholds — Semi-major Axis: ±100 km, RAAN: ±3°, Inclination: ±5°
TCA is derived from TLE conjunctions

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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings

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Check out IRIDIUM 33 DEB, 34146 on other resources

View IRIDIUM 33 DEB, 34146 on Heavens-Above

View IRIDIUM 33 DEB, 34146 on Keep Track

View IRIDIUM 33 DEB, 34146 on Celestrak

View IRIDIUM 33 DEB, 34146 on Gunter's Space Page

Satcat and Kayhan Space are not affiliated with NASA, Celestrak, Heavens-Above, Keep Track, or Gunter's Space Page.

IRIDIUM 33 DEB, 34146

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 20 hours ago

TLE from 20 hours ago

TLE epoch observation values (Epoch: 2025-12-16T00:05:26.706Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

Other satellites on launch #51 in the year 1997 (1997-09-14 UTC)

IRIDIUM 33 DEB Visibility forecast

Co-orbital & Co-planar RSOs

Check out IRIDIUM 33 DEB, 34146 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 20 hours ago