IRIDIUM 33 DEB, 35620

Orbit data source: Space-Track

IRIDIUM 33 DEB, 35620 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

35620, 1997-051QS

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, 0.087 m

Radar Cross Section

Medium (>0.1 m² and <1 m²)

Expand to show TLE details & history
Last TLE update: 2 days ago

TLE from 2 days ago

0 IRIDIUM 33 DEB
1 35620U 97051QS  26266.28748121  .00005893  00000-0  15768-2 0  9997
2 35620  86.3824  96.8730 0128940  42.0849 319.0166 14.43271776640641

Epoch: 2026-09-23T06:53Z

TLE epoch observation values (Epoch: 2026-09-23T06:53:58.376Z)

Latitude

-0.0001°

Longitude

-8.76101°

Altitude

681.914 km

Speed

7.552 km/s

True Right ascension

06h 27m 29s

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

07:06:27

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

836.502 km

Perigee altitude

652.819 km

Semi-major axis

7,122.797 km

Eccentricity

0.01289

Inclination

86.3824°

RAAN

96.873°

Arg. of periapsis

42.0849°

True anomaly

318.03569°

Mean anomaly

319.0166°

Eccentric anomaly

318.52734°

Mean motion

3.6105 °/min

Orbital period

99.71 mins

BSTAR

0.0015768

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

IRIDIUM 33 DEB, 33963 (Decayed)

IRIDIUM 33 DEB, 35300 (Decayed)

IRIDIUM 33 DEB, 34144 (Decayed)

IRIDIUM 33 DEB, 34655 (Decayed)

IRIDIUM 33 DEB, 34499 (Decayed)

IRIDIUM 33 DEB, 34162 (Decayed)

IRIDIUM 33 DEB, 34152 (Decayed)

IRIDIUM 33 DEB, 34080 (Decayed)

IRIDIUM 33 DEB, 34103 (Decayed)

IRIDIUM 33 DEB, 34520 (Decayed)

IRIDIUM 33 DEB, 33958 (Decayed)

IRIDIUM 33 DEB, 35080 (Decayed)

IRIDIUM 33 DEB, 34693 (Decayed)

IRIDIUM 33 DEB, 34892 (Decayed)

IRIDIUM 33 DEB, 34089 (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.
7 mins	2026-09-25 13:56:20.234Z	221.532° SW	2026-09-25 13:59:20.234Z	274.552° WNW	31.944°	2026-09-25 14:03:20.234Z	340.759° N
8 mins	2026-09-26 00:22:20.234Z	16.42° NNE	2026-09-26 00:25:20.234Z	72.549° E	49.536°	2026-09-26 00:30:20.234Z	158.568° S
5 mins	2026-09-26 02:03:20.234Z	306.446° NW	2026-09-26 02:05:20.234Z	279.103° WNW	17.802°	2026-09-26 02:08:20.234Z	242.041° WSW
7 mins	2026-09-26 13:14:20.234Z	186.38° SSW	2026-09-26 13:17:20.234Z	333.925° NNW	73.615°	2026-09-26 13:21:20.234Z	0.53° NNE

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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, 35620 on other resources

View IRIDIUM 33 DEB, 35620 on Heavens-Above

View IRIDIUM 33 DEB, 35620 on Keep Track

View IRIDIUM 33 DEB, 35620 on Celestrak

View IRIDIUM 33 DEB, 35620 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, 35620

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 2 days ago

TLE from 2 days ago

TLE epoch observation values (Epoch: 2026-09-23T06:53:58.376Z)

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, 35620 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 2 days ago