[meteorite-list] Hayabusa Takes Aim At Asteroid For Second Try

From: Ron Baalke <baalke_at_meteoritecentral.com>
Date: Mon Nov 21 16:24:43 2005
Message-ID: <200511212123.jALLNEd19188_at_zagami.jpl.nasa.gov>

http://msnbc.msn.com/id/10142288/

Probe takes aim at asteroid for second try

Japan's Hayabusa spacecraft heads back after initial failure to land
Associated Press
November 21, 2005

TOKYO - A Japanese space probe is heading back toward an asteroid for a
second landing attempt after failing to touch down over the weekend,
space agency officials said Monday.

Communications between the Hayabusa probe and the Japanese Aerospace
Exploration Agency, or JAXA, have returned to normal after the vessel
inexplicably stopped just yards from the asteroid Itokawa on Sunday.

The probe, which also botched a rehearsal earlier this month, is on a
mission to land on the asteroid briefly, collect material, then bring
that material back to Earth.

Officials will analyze data from the probe Tuesday to find out what went
wrong in Sunday's attempt. A second landing attempt is planned for as
early as Friday, according to JAXA spokesman Toshihisa Horiguchi.

On Sunday, Hayabusa dropped a small object as a touchdown target from
130 feet (40 meters) above the asteroid and then descended to 56 feet
(17 meters), according to JAXA.

At that point, ground control lost contact with the probe for about
three hours, JAXA officials said.

The probe switched to auto-control, storing data about itself and later
transmitting it to ground control to be analyzed.

"We're not so discouraged ...The fact that the probe went so close in
itself is a major achievement, and it also showed we've overcome the
past problems, " JAXA Associate Executive Director Yasunori Matogawa said.

The probe's current distance from the asteroid was not immediately
known, Horiguchi said. Officials earlier said the probe was believed to
have retreated as far as 60 miles (100 kilometers) from the asteroid.

The mission has been troubled by a series of glitches.

The rehearsal earlier this month was aborted when the probe had trouble
finding a landing spot, and a small robotic lander deployed from the
probe was lost. Hayabusa also suffered a problem with one of its three
gyroscopes, but it has since been repaired.

Hayabusa was launched in May 2003 and has until early December before it
must leave orbit and begin its 180 million-mile (288 million-kilometer)
journey home. It is expected to return to Earth and land in the
Australian Outback in June 2007.
Received on Mon 21 Nov 2005 04:23:14 PM PST