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2002
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2002 At4




(also written ''' 2002 AT4 ''') is an as yet unnamed and un-numbered Near-Earth Asteroid . It is approximately 160-370 metres in diameter. It has an Eccentric Orbit that brings it sometimes close to Earth's orbit, and sometimes halfway between Mars and Jupiter . It is a D-type Asteroid which means that it may be reddish in colour.

is one of two asteroid under consideration by the European Space Agency as a candidate target for the Don Quijote mission to study the effects of impacting a spacecraft into an asteroid.