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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https://www.satcat.com/sats-embedded/35620?theme=dark&initialShowStats=false

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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, 0.1 m

Radar Cross Section

Small (<0.1 m²)

Expand to show TLE details & history
Last TLE update: 14 hours ago

TLE from 14 hours ago

0 IRIDIUM 33 DEB
1 35620U 97051QS  26121.08299564  .00006713  00000-0  18440-2 0  9999
2 35620  86.3905 158.5445 0137717 157.8790 202.8433 14.41395468619715

Epoch: 2026-05-01T01:59Z

TLE epoch observation values (Epoch: 2026-05-01T01:59:30.823Z)

Latitude

-0.00006°

Longitude

-90.35428°

Altitude

847.69 km

Speed

7.381 km/s

True Right ascension

10h 34m 10s

True Declination

0° 00' 00"

Sunlit

Object was in full shadow 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

23:55:36

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

849.023 km

Perigee altitude

652.667 km

Semi-major axis

7,128.982 km

Eccentricity

0.01377

Inclination

86.3905°

RAAN

158.5445°

Arg. of periapsis

157.879°

True anomaly

202.24024°

Mean anomaly

202.8433°

Eccentric anomaly

202.54082°

Mean motion

3.6058 °/min

Orbital period

99.84 mins

BSTAR

0.001844

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

IRIDIUM 33 DEB, 33962 (Decayed)

IRIDIUM 33 DEB, 35486 (Decayed)

IRIDIUM 31, 24950 (Decayed)

IRIDIUM 33 DEB, 39783

IRIDIUM 33 DEB, 36490

IRIDIUM 33 DEB, 34529

IRIDIUM 33 DEB, 34765

IRIDIUM 33 DEB, 34691 (Decayed)

IRIDIUM 33 DEB, 34696

IRIDIUM 33 DEB, 34540

IRIDIUM 33 DEB, 34926

IRIDIUM 33 DEB, 34376

IRIDIUM 33 DEB, 34077

IRIDIUM 33 DEB, 38022

IRIDIUM 33 DEB, 40998

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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	2026-05-02 03:06:39.324Z	186.591° SSW	2026-05-02 03:10:39.324Z	319.667° NNW	44.135°	2026-05-02 03:14:39.324Z	359.406° N
4 mins	2026-05-02 13:35:39.324Z	51.7° ENE	2026-05-02 13:37:39.324Z	86.65° E	18.81°	2026-05-02 13:39:39.324Z	117.047° SE
6 mins	2026-05-02 15:14:39.324Z	328.536° NNW	2026-05-02 15:17:39.324Z	269.867° W	28.225°	2026-05-02 15:20:39.324Z	217.612° 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, 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: 14 hours ago

TLE from 14 hours ago

TLE epoch observation values (Epoch: 2026-05-01T01:59:30.823Z)

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: 14 hours ago