IRIDIUM 33 DEB, 35850

Orbit data source: Space-Track

IRIDIUM 33 DEB, 35850 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/35850?theme=dark&initialShowStats=false

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Identifier

35850, 1997-051TA

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)

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Last TLE update: 1 week ago

TLE from 1 week ago

0 IRIDIUM 33 DEB
1 35850U 97051TA  25340.31268081  .00020775  00000-0  28292-2 0  9992
2 35850  86.3487 347.1693 0008389 210.2670 149.8067 14.78601393712623

Epoch: 2025-12-06T07:30Z

TLE epoch observation values (Epoch: 2025-12-06T07:30:15.621Z)

Latitude

0.00002°

Longitude

159.26199°

Altitude

641.942 km

Speed

7.534 km/s

True Right ascension

23h 08m 40s

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

00:25:05

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

636.525 km

Perigee altitude

624.766 km

Semi-major axis

7,008.782 km

Eccentricity

0.00084

Inclination

86.3487°

RAAN

347.1693°

Arg. of periapsis

210.267°

True anomaly

149.855°

Mean anomaly

149.8067°

Eccentric anomaly

149.83086°

Mean motion

3.69896 °/min

Orbital period

97.32 mins

BSTAR

0.0028292

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

IRIDIUM 33 DEB, 35078 (Decayed)

IRIDIUM 33 DEB, 35619 (Decayed)

IRIDIUM 33 DEB, 38034 (Decayed)

IRIDIUM 33 DEB, 33949 (Decayed)

IRIDIUM 33 DEB, 36564 (Decayed)

IRIDIUM 33 DEB, 36016 (Decayed)

IRIDIUM 33 DEB, 36393 (Decayed)

IRIDIUM 33 DEB, 34528 (Decayed)

IRIDIUM 30, 24949 (Decayed)

IRIDIUM 33 DEB, 34702 (Decayed)

IRIDIUM 33 DEB, 35919 (Decayed)

IRIDIUM 33 DEB, 39780 (Decayed)

IRIDIUM 33 DEB, 34379 (Decayed)

IRIDIUM 33 DEB, 33857 (Decayed)

IRIDIUM 33 DEB, 38029 (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.
8 mins	2025-12-16 11:39:43.207Z	3.953° NNE	2025-12-16 11:43:43.207Z	60.645° ENE	41.379°	2025-12-16 11:47:43.207Z	166.585° S
7 mins	2025-12-17 00:13:43.207Z	178.949° S	2025-12-17 00:16:43.207Z	19.791° NNE	44.282°	2025-12-17 00:20:43.207Z	3.533° NNE

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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, 35850 on other resources

View IRIDIUM 33 DEB, 35850 on Heavens-Above

View IRIDIUM 33 DEB, 35850 on Keep Track

View IRIDIUM 33 DEB, 35850 on Celestrak

View IRIDIUM 33 DEB, 35850 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, 35850

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 1 week ago

TLE from 1 week ago

TLE epoch observation values (Epoch: 2025-12-06T07:30:15.621Z)

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, 35850 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 1 week ago