09.14.2005 07:12

Japanese Asteroid Sample-return Spacecraft Hayabusa arrives at Itokawa


Today's HAYABUSA
As of 9:00 2005/09/14(JST)

Distance from Earth : 318,928,350km
Distance from Itokawa : 20km


Source: Today's Hayabusa page at the Hayabusa Mission pages at the Japan Aerospace Exploration Agency.

Doppler velocity difference between Itokawa and Hayabusa
Doppler velocity difference between Itokawa and Hayabusa
showing relative velocity of zero as of 01:17 UTC on 12 September

Laser Altimeter measurement about two hours after the stop maneuver
Laser Altimeter measurement about two hours after the stop maneuver
Since Hayabusa is almost still to Itokawa, the range fluctuation comes from the terrain of Itokawa.


Source: The doppler and altimeter data at Hayabusa arrival.