IRIDIUM 33 DEB, 33850

Orbit data source: Space-Track

IRIDIUM 33 DEB, 33850 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

33850, 1997-051T

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, 0.5 m

Radar Cross Section

Medium (>0.1 m² and <1 m²)

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Last TLE update: 5 hours ago

TLE from 5 hours ago

0 IRIDIUM 33 DEB
1 33850U 97051T   26169.62841740  .00000687  00000-0  20068-3 0  9997
2 33850  86.3406 309.3677 0009168 267.3768 103.8754 14.42684182908618

Epoch: 2026-06-18T15:04Z

TLE epoch observation values (Epoch: 2026-06-18T15:04:55.263Z)

Latitude

11.28139°

Longitude

176.99552°

Altitude

753.519 km

Speed

7.478 km/s

True Right ascension

20h 40m 22s

True Declination

11° 12' 56"

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

07:10:04

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

753.129 km

Perigee altitude

740.065 km

Semi-major axis

7,124.734 km

Eccentricity

0.00092

Inclination

86.3406°

RAAN

309.3677°

Arg. of periapsis

267.3768°

True anomaly

103.97736°

Mean anomaly

103.8754°

Eccentric anomaly

103.92638°

Mean motion

3.60903 °/min

Orbital period

99.75 mins

BSTAR

0.00020068

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

IRIDIUM 33 DEB, 34531 (Decayed)

IRIDIUM 33 DEB, 33849 (Decayed)

IRIDIUM 33 DEB, 34513 (Decayed)

IRIDIUM 33 DEB, 34085 (Decayed)

IRIDIUM 33 DEB, 34161 (Decayed)

IRIDIUM 33 DEB, 46963 (Decayed)

IRIDIUM 33 DEB, 35735 (Decayed)

IRIDIUM 33 DEB, 34081 (Decayed)

IRIDIUM 33 DEB, 40997 (Decayed)

IRIDIUM 33 DEB, 46971

IRIDIUM 33 DEB, 38034 (Decayed)

IRIDIUM 33 DEB, 36489 (Decayed)

IRIDIUM 33 DEB, 34073 (Decayed)

IRIDIUM 33 DEB, 38235 (Decayed)

IRIDIUM 33 DEB, 34987 (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	2026-06-18 20:36:12.185Z	26.559° NE	2026-06-18 20:40:12.185Z	83.749° E	23.011°	2026-06-18 20:43:12.185Z	127.072° SE
7 mins	2026-06-18 22:17:12.185Z	326.57° NNW	2026-06-18 22:20:12.185Z	272.688° WNW	28.679°	2026-06-18 22:24:12.185Z	214.67° SW
8 mins	2026-06-19 09:28:12.185Z	154.12° SSE	2026-06-19 09:31:12.185Z	100.804° ESE	36.531°	2026-06-19 09:36:12.185Z	14.786° NNE
5 mins	2026-06-19 11:10:12.185Z	259.343° W	2026-06-19 11:12:12.185Z	287.687° WNW	16.8°	2026-06-19 11:15:12.185Z	324.809° NNW

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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, 33850 on other resources

View IRIDIUM 33 DEB, 33850 on Heavens-Above

View IRIDIUM 33 DEB, 33850 on Keep Track

View IRIDIUM 33 DEB, 33850 on Celestrak

View IRIDIUM 33 DEB, 33850 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, 33850

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 5 hours ago

TLE from 5 hours ago

TLE epoch observation values (Epoch: 2026-06-18T15:04:55.263Z)

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, 33850 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 5 hours ago