IRIDIUM 33 DEB, 36012

Orbit data source: Space-Track

IRIDIUM 33 DEB, 36012 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

36012, 1997-051UT

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 day ago

TLE from 1 day ago

0 IRIDIUM 33 DEB
1 36012U 97051UT  25348.63123516  .00012304  00000-0  46999-2 0  9992
2 36012  86.4403 306.7711 0211555 257.0975 100.6509 14.19089098655116

Epoch: 2025-12-14T15:08Z

TLE epoch observation values (Epoch: 2025-12-14T15:08:58.717Z)

Latitude

-0.00001°

Longitude

-4.01494°

Altitude

862.746 km

Speed

7.405 km/s

True Right ascension

20h 27m 05s

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

23:41:41

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

977.813 km

Perigee altitude

673.023 km

Semi-major axis

7,203.555 km

Eccentricity

0.02116

Inclination

86.4403°

RAAN

306.7711°

Arg. of periapsis

257.0975°

True anomaly

103.02111°

Mean anomaly

100.6509°

Eccentric anomaly

101.83724°

Mean motion

3.54996 °/min

Orbital period

101.41 mins

BSTAR

0.0046999

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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, 35622

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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	2025-12-16 08:21:26.253Z	23.501° NE	2025-12-16 08:26:26.253Z	82.371° E	22.49°	2025-12-16 08:30:26.253Z	129.321° SE
8 mins	2025-12-16 10:04:26.253Z	335.262° NNW	2025-12-16 10:08:26.253Z	263.985° W	34.006°	2025-12-16 10:12:26.253Z	208.929° SW
10 mins	2025-12-16 21:25:26.253Z	160.594° S	2025-12-16 21:29:26.253Z	98.336° ESE	40.437°	2025-12-16 21:35:26.253Z	10.945° NNE
6 mins	2025-12-16 23:09:26.253Z	255.41° W	2025-12-16 23:11:26.253Z	279.389° WNW	19.319°	2025-12-16 23:15:26.253Z	324.959° 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, 36012 on other resources

View IRIDIUM 33 DEB, 36012 on Heavens-Above

View IRIDIUM 33 DEB, 36012 on Keep Track

View IRIDIUM 33 DEB, 36012 on Celestrak

View IRIDIUM 33 DEB, 36012 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, 36012

Orbit data source: Space-Track

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

TLE from 1 day ago

TLE epoch observation values (Epoch: 2025-12-14T15:08:58.717Z)

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, 36012 on other resources

Documentation

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