IRIDIUM 33 DEB, 33866

Orbit data source: Space-Track

IRIDIUM 33 DEB, 33866 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

33866, 1997-051AK

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, 0.2 m

Radar Cross Section

Medium (>0.1 m² and <1 m²)

Expand to show TLE details & history
Last TLE update: 17 hours ago

TLE from 17 hours ago

0 IRIDIUM 33 DEB
1 33866U 97051AK  26266.15924817  .00001371  00000-0  52450-3 0  9998
2 33866  86.3052 332.5660 0109197 326.9674  61.2488 14.26812535908644

Epoch: 2026-09-23T03:49Z

TLE epoch observation values (Epoch: 2026-09-23T03:49:19.041Z)

Latitude

29.30099°

Longitude

-84.71196°

Altitude

769.106 km

Speed

7.491 km/s

True Right ascension

22h 18m 31s

True Declination

29° 09' 17"

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

13:43:01

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

877.758 km

Perigee altitude

721.005 km

Semi-major axis

7,177.518 km

Eccentricity

0.01092

Inclination

86.3052°

RAAN

332.566°

Arg. of periapsis

326.9674°

True anomaly

62.35302°

Mean anomaly

61.2488°

Eccentric anomaly

61.80019°

Mean motion

3.56929 °/min

Orbital period

100.86 mins

BSTAR

0.0005245

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

IRIDIUM 33 DEB, 33868 (Decayed)

IRIDIUM 33 DEB, 36564 (Decayed)

IRIDIUM 33 DEB, 35483 (Decayed)

IRIDIUM 33 DEB, 34703 (Decayed)

IRIDIUM 33 DEB, 33857 (Decayed)

IRIDIUM 33 DEB, 34102 (Decayed)

IRIDIUM 33 DEB, 34536 (Decayed)

IRIDIUM 33 DEB, 34151 (Decayed)

IRIDIUM 33 DEB, 38243 (Decayed)

IRIDIUM 33 DEB, 34089 (Decayed)

IRIDIUM 33 DEB, 36565 (Decayed)

IRIDIUM 33 DEB, 34778 (Decayed)

IRIDIUM 33 DEB, 34483 (Decayed)

IRIDIUM 33 DEB, 34353 (Decayed)

IRIDIUM 33 DEB, 34514 (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	2026-09-24 05:02:41.587Z	179.441° S	2026-09-24 05:06:41.587Z	165.704° S	77.326°	2026-09-24 05:11:41.587Z	3.517° NNE
8 mins	2026-09-24 15:37:41.587Z	32.313° NE	2026-09-24 15:40:41.587Z	72.579° E	26.871°	2026-09-24 15:45:41.587Z	134.358° SE
8 mins	2026-09-24 17:18:41.587Z	333.24° NNW	2026-09-24 17:22:41.587Z	266.027° W	39.17°	2026-09-24 17:26:41.587Z	212.158° 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, 33866 on other resources

View IRIDIUM 33 DEB, 33866 on Heavens-Above

View IRIDIUM 33 DEB, 33866 on Keep Track

View IRIDIUM 33 DEB, 33866 on Celestrak

View IRIDIUM 33 DEB, 33866 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, 33866

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 17 hours ago

TLE from 17 hours ago

TLE epoch observation values (Epoch: 2026-09-23T03:49:19.041Z)

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, 33866 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 17 hours ago