Touchdown of the Hayabusa Spacecraft at the Muses Sea on Itokawa-Reference-Cited by-同舟云学术

Touchdown of the Hayabusa Spacecraft at the Muses Sea on Itokawa

Published:2006-06-02 Issue:5778 Volume:312 Page:1350-1353
ISSN:0036-8075
Container-title:Science
language:en
Short-container-title:Science

Author:

Yano Hajime¹²³⁴⁵,Kubota T.¹²³⁴⁵,Miyamoto H.¹²³⁴⁵,Okada T.¹²³⁴⁵,Scheeres D.¹²³⁴⁵,Takagi Y.¹²³⁴⁵,Yoshida K.¹²³⁴⁵,Abe M.¹²³⁴⁵,Abe S.¹²³⁴⁵,Barnouin-Jha O.¹²³⁴⁵,Fujiwara A.¹²³⁴⁵,Hasegawa S.¹²³⁴⁵,Hashimoto T.¹²³⁴⁵,Ishiguro M.¹²³⁴⁵,Kato M.¹²³⁴⁵,Kawaguchi J.¹²³⁴⁵,Mukai T.¹²³⁴⁵,Saito J.¹²³⁴⁵,Sasaki S.¹²³⁴⁵,Yoshikawa M.¹²³⁴⁵

Affiliation:

1. Department of Planetary Science, Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, 3-1-1 Yoshinodai, Sagamihara, Kanagawa 229-8510 Japan.

2. Department of Geosystem Engineering, University of Tokyo, Hongo, Tokyo, 113-8656 Japan.

3. University of Michigan, Ann Arbor, MI 48109–2140, USA.

4. Toho Gakuen University, 3-11 Heiwagaoka, Meito, Nagoya, 465-8515 Japan.

5. Department of Aerospace Engineering, Tohoku University, Sendai, Miyagi, 980-8579 Japan.

Abstract

After global observations of asteroid 25143 Itokawa by the Hayabusa spacecraft, we selected the smooth terrain of the Muses Sea for two touchdowns carried out on 19 and 25 November 2005 UTC for the first asteroid sample collection with an impact sampling mechanism. Here, we report initial findings about geological features, surface condition, regolith grain size, compositional variation, and constraints on the physical properties of this site by using both scientific and housekeeping data during the descent sequence of the first touchdown. Close-up images revealed the first touchdown site as a regolith field densely filled with size-sorted, millimeter- to centimeter-sized grains.

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

Reference31 articles.

1. The MUSES-C mission for the sample and return—its technology development status and readiness

2. The Rubble-Pile Asteroid Itokawa as Observed by Hayabusa

3. Detailed Images of Asteroid 25143 Itokawa from Hayabusa

4. Near-Infrared Spectral Results of Asteroid Itokawa from the Hayabusa Spacecraft

5. X-ray Fluorescence Spectrometry of Asteroid Itokawa by Hayabusa

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