IRIDIUM 33 DEB, 34521

Orbit data source: Space-Track

IRIDIUM 33 DEB, 34521 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/34521?theme=dark&initialShowStats=false

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Identifier

34521, 1997-051HN

Orbit

LEO

Country

Related business

Iridium Communications Inc. (US)

Manufacturer

Unknown

Mission

Spacecraft

Bus & Motor

Unknown

Mass

Unknown

Launch date (UTC)

1997-09-14 (29 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)

Expand to show TLE details & history
Last TLE update: 8 hours ago

TLE from 8 hours ago

0 IRIDIUM 33 DEB
1 34521U 97051HN  26140.44100317  .00003737  00000-0  68666-3 0  9995
2 34521  86.3768 320.5628 0005481  87.5114 272.6726 14.65448471907951

Epoch: 2026-05-20T10:35Z

TLE epoch observation values (Epoch: 2026-05-20T10:35:02.673Z)

Latitude

-0.0001°

Longitude

-76.29886°

Altitude

678.553 km

Speed

7.517 km/s

True Right ascension

21h 22m 15s

True Declination

0° 00' 00"

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

03:17:36

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

676.421 km

Perigee altitude

668.692 km

Semi-major axis

7,050.694 km

Eccentricity

0.00055

Inclination

86.3768°

RAAN

320.5628°

Arg. of periapsis

87.5114°

True anomaly

272.60986°

Mean anomaly

272.6726°

Eccentric anomaly

272.64123°

Mean motion

3.66602 °/min

Orbital period

98.2 mins

BSTAR

0.00068666

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

IRIDIUM 33 DEB, 34090 (Decayed)

IRIDIUM 33 DEB, 37556 (Decayed)

IRIDIUM 33 DEB, 39595 (Decayed)

IRIDIUM 33 DEB, 34156 (Decayed)

IRIDIUM 33 DEB, 34894 (Decayed)

IRIDIUM 33 DEB, 33864 (Decayed)

IRIDIUM 33 DEB, 34356 (Decayed)

IRIDIUM 33 DEB, 34151 (Decayed)

IRIDIUM 33 DEB, 34373 (Decayed)

IRIDIUM 33 DEB, 33953

IRIDIUM 33 DEB, 36083

IRIDIUM 33 DEB, 35913 (Decayed)

IRIDIUM 33 DEB, 33870

IRIDIUM 33 DEB, 38234 (Decayed)

IRIDIUM 33 DEB, 33965 (Decayed)

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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.
9 mins	2026-05-21 00:15:23.891Z	355.056° N	2026-05-21 00:19:23.891Z	328.77° NNW	43.414°	2026-05-21 00:24:23.891Z	182.856° SSW
7 mins	2026-05-21 12:56:23.891Z	207.776° SW	2026-05-21 12:59:23.891Z	282.73° WNW	37.493°	2026-05-21 13:03:23.891Z	350.324° N

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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, 34521 on other resources

View IRIDIUM 33 DEB, 34521 on Heavens-Above

View IRIDIUM 33 DEB, 34521 on Keep Track

View IRIDIUM 33 DEB, 34521 on Celestrak

View IRIDIUM 33 DEB, 34521 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, 34521

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 8 hours ago

TLE from 8 hours ago

TLE epoch observation values (Epoch: 2026-05-20T10:35:02.673Z)

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, 34521 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 8 hours ago