IRIDIUM 33 DEB, 35616

Orbit data source: Space-Track

IRIDIUM 33 DEB, 35616 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/35616?theme=dark&initialShowStats=false

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Identifier

35616, 1997-051QN

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: 12 hours ago

TLE from 12 hours ago

0 IRIDIUM 33 DEB
1 35616U 97051QN  26208.83890843  .00012306  00000-0  13402-2 0  9998
2 35616  86.3478 241.5032 0011658 101.4844 258.7691 14.87867179909452

Epoch: 2026-07-27T20:08Z

TLE epoch observation values (Epoch: 2026-07-27T20:08:01.688Z)

Latitude

-0.00004°

Longitude

-6.02057°

Altitude

609.322 km

Speed

7.554 km/s

True Right ascension

16h 06m 00s

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

21:17:16

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

609.628 km

Perigee altitude

593.354 km

Semi-major axis

6,979.628 km

Eccentricity

0.00117

Inclination

86.3478°

RAAN

241.5032°

Arg. of periapsis

101.4844°

True anomaly

258.6381°

Mean anomaly

258.7691°

Eccentric anomaly

258.7036°

Mean motion

3.72216 °/min

Orbital period

96.72 mins

BSTAR

0.0013402

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

IRIDIUM 33 DEB, 35747

IRIDIUM 33 DEB, 33866

IRIDIUM 33 DEB, 38028

IRIDIUM 33 DEB, 34531 (Decayed)

IRIDIUM 33 DEB, 35628

IRIDIUM 33 DEB, 38241

IRIDIUM 33 DEB, 37562

IRIDIUM 33 DEB, 35921 (Decayed)

IRIDIUM 33 DEB, 34159

IRIDIUM 33 DEB, 34097

IRIDIUM 33 DEB, 36012

IRIDIUM 33 DEB, 35680

IRIDIUM 33 DEB, 35848

IRIDIUM 33 DEB, 37548

IRIDIUM 33 DEB, 38228

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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	2026-07-28 14:26:45.008Z	355.789° N	2026-07-28 14:30:45.008Z	313.397° NW	44.582°	2026-07-28 14:34:45.008Z	181.624° SSW
7 mins	2026-07-29 02:55:45.008Z	191.889° SSW	2026-07-29 02:58:45.008Z	261.774° W	43.03°	2026-07-29 03:02:45.008Z	356.919° 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, 35616 on other resources

View IRIDIUM 33 DEB, 35616 on Heavens-Above

View IRIDIUM 33 DEB, 35616 on Keep Track

View IRIDIUM 33 DEB, 35616 on Celestrak

View IRIDIUM 33 DEB, 35616 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, 35616

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 12 hours ago

TLE from 12 hours ago

TLE epoch observation values (Epoch: 2026-07-27T20:08:01.688Z)

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, 35616 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 12 hours ago