Top| Outline | Mission | Topics | Archives @@Japanese

Hayabusa has finished an exciting excursion around Itokawa. The figure below indicates the
spacecraft position during the latter half of October. The definition of HP coordinates was
described in previous articles.



After reaching the sub-solar point, Hayabusa started to travel out of the ecliptic plane to
observe the polar regions of Itokawa. The image below shows the southern hemisphere
of Itokawa.



Due to the low altitude and solar elevation angles, we can see detailed topography in the
high-latitude regions. There are even some boulders on Muses-Sea, which looked very
smooth in previous observations. Imagine one of these boulders flying in space. If it came
to the Earth's vicinity, we would observe it as a tiny independent near-Earth asteroid. It
has long been conjectured that meteorites are fragments of asteroids delivered to the
Earth's surface, but it remains to be proven. The samples of Itokawa collected and returned
by Hayabusa could provide the first direct evidence of the link between asteroids and

yNoticezWeb Data Citation Policy | E-mail