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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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 (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)

Expand to show TLE details & history
Last TLE update: 3 days ago

TLE from 3 days ago

0 IRIDIUM 33 DEB
1 35616U 97051QN  26035.23725939  .00016153  00000-0  19449-2 0  9994
2 35616  86.3557 321.3185 0010572  10.2459 349.8978 14.83757518883675

Epoch: 2026-02-04T05:41Z

TLE epoch observation values (Epoch: 2026-02-04T05:41:39.211Z)

Latitude

0.00004°

Longitude

101.4984°

Altitude

613.326 km

Speed

7.556 km/s

True Right ascension

21h 25m 16s

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

12:54:46

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

621.777 km

Perigee altitude

606.992 km

Semi-major axis

6,992.521 km

Eccentricity

0.00106

Inclination

86.3557°

RAAN

321.3185°

Arg. of periapsis

10.2459°

True anomaly

349.87652°

Mean anomaly

349.8978°

Eccentric anomaly

349.88716°

Mean motion

3.71187 °/min

Orbital period

96.99 mins

BSTAR

0.0019449

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

IRIDIUM 33 DEB, 34645 (Decayed)

IRIDIUM 33 DEB, 39783

IRIDIUM 33 DEB, 34929 (Decayed)

IRIDIUM 33 DEB, 33868 (Decayed)

IRIDIUM 32, 24945 (Decayed)

IRIDIUM 33 DEB, 46961 (Decayed)

IRIDIUM 33 DEB, 33959 (Decayed)

IRIDIUM 33 DEB, 34768 (Decayed)

IRIDIUM 33 DEB, 34372 (Decayed)

IRIDIUM 33 DEB, 34076 (Decayed)

IRIDIUM 33 DEB, 35296 (Decayed)

IRIDIUM 33 DEB, 34928 (Decayed)

IRIDIUM 33 DEB, 35735 (Decayed)

IRIDIUM 33 DEB, 34644 (Decayed)

IRIDIUM 33 DEB, 35847 (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.
6 mins	2026-02-07 19:36:57.642Z	207.539° SW	2026-02-07 19:38:57.642Z	254.159° W	37.666°	2026-02-07 19:42:57.642Z	350.13° N
4 mins	2026-02-08 05:46:57.642Z	52.516° ENE	2026-02-08 05:48:57.642Z	85.936° E	16.584°	2026-02-08 05:50:57.642Z	115.179° SE
6 mins	2026-02-08 07:23:57.642Z	322.776° NNW	2026-02-08 07:25:57.642Z	274.142° WNW	30.72°	2026-02-08 07:29:57.642Z	207.231° 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, 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: 3 days ago

TLE from 3 days ago

TLE epoch observation values (Epoch: 2026-02-04T05:41:39.211Z)

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: 3 days ago