Asteroid, Meteor, Meteorite - PowerPoint PPT Presentation

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Asteroid, Meteor, Meteorite

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* Image: This illustration shows a possible story of the origin of the Almahata Sitta meteorites, adapted from the LPSC presentation by Jason Herrin ... – PowerPoint PPT presentation

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Title: Asteroid, Meteor, Meteorite


1
Asteroid, Meteor, Meteorite
In the early morning of October 6, 2008 an
asteroid close to Earth was detected by a
Catalina Sky Survey (CSS) telescope at Mount
Lemmon, Arizona. It entered and broke up in
Earth's atmosphere 19 hours later leaving behind
a luminous train of clouds in the sky and
meteorites on the desert floor.
Train station sign in the Nubian Desert
CSS telescope discovery images of asteroid TC3
2
Asteroid, Meteor, Meteorite
Almahata Sitta is an anomalous polymict ureilite
A spectacular mixture of lithologies giving new
clues to the mineralogy, density, thermal
history, magnetism, and geologic evolution of its
parent body.
280 meteorite fragments (weighing 3.95 kilograms)
have been found.
3
Asteroid, Meteor, Meteorite
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