IRIDIUM 33 DEB, 33775

Orbit data source: Space-Track

IRIDIUM 33 DEB, 33775 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/33775?theme=dark&initialShowStats=false

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Identifier

33775, 1997-051N

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, 0.3 m

Radar Cross Section

Medium (>0.1 m² and <1 m²)

Expand to show TLE details & history
Last TLE update: 10 hours ago

TLE from 10 hours ago

0 IRIDIUM 33 DEB
1 33775U 97051N   25355.17822061  .00000727  00000-0  21779-3 0  9999
2 33775  86.3627  45.9507 0015071 129.3749 284.9532 14.41484651882625

Epoch: 2025-12-21T04:16Z

TLE epoch observation values (Epoch: 2025-12-21T04:16:38.260Z)

Latitude

54.10081°

Longitude

-103.19194°

Altitude

759.832 km

Speed

7.481 km/s

True Right ascension

03h 23m 50s

True Declination

53° 56' 14"

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

13:03:48

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

761.296 km

Perigee altitude

739.809 km

Semi-major axis

7,128.689 km

Eccentricity

0.00151

Inclination

86.3627°

RAAN

45.9507°

Arg. of periapsis

129.3749°

True anomaly

284.78627°

Mean anomaly

284.9532°

Eccentric anomaly

284.86974°

Mean motion

3.60602 °/min

Orbital period

99.83 mins

BSTAR

0.00021779

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

IRIDIUM 33 DEB, 35081 (Decayed)

IRIDIUM 33 DEB, 34707 (Decayed)

IRIDIUM 33 DEB, 34508

IRIDIUM 33 DEB, 35846

IRIDIUM 33 DEB, 34492

IRIDIUM 33 DEB, 34538

IRIDIUM 33 DEB, 33850

IRIDIUM 33 DEB, 36080

IRIDIUM 33 DEB, 35631

IRIDIUM 33 DEB, 33887

IRIDIUM 33 DEB, 46734

IRIDIUM 33 DEB, 46965

IRIDIUM 33 DEB, 46979

IRIDIUM 33 DEB, 37550

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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	2025-12-21 14:36:41.542Z	36.686° NE	2025-12-21 14:39:41.542Z	76.818° E	17.929°	2025-12-21 14:42:41.542Z	116.879° SE
8 mins	2025-12-21 16:16:41.542Z	337.524° N	2025-12-21 16:19:41.542Z	287.674° WNW	34.241°	2025-12-21 16:24:41.542Z	203.017° SW
8 mins	2025-12-22 03:28:41.542Z	145.051° SSE	2025-12-22 03:32:41.542Z	72.306° E	30.478°	2025-12-22 03:36:41.542Z	20.272° NNE
6 mins	2025-12-22 05:09:41.542Z	240.312° WSW	2025-12-22 05:12:41.542Z	285.074° WNW	21.071°	2025-12-22 05:15:41.542Z	327.044° 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, 33775 on other resources

View IRIDIUM 33 DEB, 33775 on Heavens-Above

View IRIDIUM 33 DEB, 33775 on Keep Track

View IRIDIUM 33 DEB, 33775 on Celestrak

View IRIDIUM 33 DEB, 33775 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, 33775

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 10 hours ago

TLE from 10 hours ago

TLE epoch observation values (Epoch: 2025-12-21T04:16:38.260Z)

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, 33775 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 10 hours ago