IRIDIUM 33 DEB, 33853

Orbit data source: Space-Track

IRIDIUM 33 DEB, 33853 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/33853?theme=dark&initialShowStats=false

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Identifier

33853, 1997-051W

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

Medium (>0.1 m² and <1 m²)

Expand to show TLE details & history
Last TLE update: 2 days ago

TLE from 2 days ago

0 IRIDIUM 33 DEB
1 33853U 97051W   26153.30179334  .00001281  00000-0  71197-3 0  9991
2 33853  85.9977 274.5254 0209596  70.5595 353.7924 13.99834105877457

Epoch: 2026-06-02T07:14Z

TLE epoch observation values (Epoch: 2026-06-02T07:14:34.944Z)

Latitude

63.8883°

Longitude

-76.73443°

Altitude

753.911 km

Speed

7.561 km/s

True Right ascension

18h 50m 45s

True Declination

63° 45' 07"

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

00:13:11

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

1,043.756 km

Perigee altitude

739.023 km

Semi-major axis

7,269.526 km

Eccentricity

0.02096

Inclination

85.9977°

RAAN

274.5254°

Arg. of periapsis

70.5595°

True anomaly

353.52575°

Mean anomaly

353.7924°

Eccentric anomaly

353.65978°

Mean motion

3.50174 °/min

Orbital period

102.81 mins

BSTAR

0.00071197

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

IRIDIUM 33 DEB, 40996

IRIDIUM 33 DEB, 35680

IRIDIUM 33 DEB, 34159

IRIDIUM 33 DEB, 33874 (Decayed)

IRIDIUM 33 DEB, 35628

IRIDIUM 33 DEB, 40998

IRIDIUM 33 DEB, 38469 (Decayed)

IRIDIUM 33 DEB, 35482 (Decayed)

IRIDIUM 33 DEB, 34109 (Decayed)

IRIDIUM 29, 24944

IRIDIUM 33 DEB, 36081 (Decayed)

IRIDIUM 33 DEB, 35081 (Decayed)

IRIDIUM 33 DEB, 33873 (Decayed)

IRIDIUM 33 DEB, 34532 (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.
10 mins	2026-06-04 19:33:30.509Z	11.335° NNE	2026-06-04 19:38:30.509Z	99.966° ESE	36.557°	2026-06-04 19:43:30.509Z	158.022° S
6 mins	2026-06-04 21:18:30.509Z	310.154° NW	2026-06-04 21:20:30.509Z	284.211° WNW	18.702°	2026-06-04 21:24:30.509Z	236.675° WSW
8 mins	2026-06-05 08:50:30.509Z	203.808° SW	2026-06-05 08:54:30.509Z	298.038° NW	38.039°	2026-06-05 08:58:30.509Z	352.159° 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, 33853 on other resources

View IRIDIUM 33 DEB, 33853 on Heavens-Above

View IRIDIUM 33 DEB, 33853 on Keep Track

View IRIDIUM 33 DEB, 33853 on Celestrak

View IRIDIUM 33 DEB, 33853 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, 33853

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 2 days ago

TLE from 2 days ago

TLE epoch observation values (Epoch: 2026-06-02T07:14:34.944Z)

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, 33853 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 2 days ago