| タイトル | Sampling Strategy and Curation Plan of "Hayabusa" Asteroid Sample Return Mission |
| 著者（英） | Hasegawa, S.; Yano, H.; Fujiwara, A.; Abe, M.; Zolensky, M. E.; Kushiro, I. |
| 著者所属（英） | NASA Johnson Space Center |
| 発行日 | 2004-01-01
2004 |
| 言語 | eng |
| 内容記述 | On the 9th May 2003 JST, Japanese spacecraft MUSES-C was successfully launched from Uchinoura. The spacecraft was directly inserted to interplanetary trajectory and renamed as Hayabusa , or "Falcon" to be the world s first sample return spacecraft to a near Earth asteroid (NEA). The NEA (25143)Itokawa (formerly known as "1998SF36") is its mission target. Its orbital and physical characteristics were well observed; the size is (490 +/- 100)x (250 +/- 55)x(180 +/- 50) m with about 12-hour rotation period. It has a red-sloped S(IV)-type spectrum with strong 1- and 2-micron absorption bands, analogous to ordinary LL chondrites with space weathering effect. Assuming its bulk density, the surface gravity level of Itokawa is in the order of 10 micro-G with its escape velocity = approx. 20 cm/s. |
| NASA分類 | Lunar and Planetary Science and Exploration |
| レポートNO | JSC-CN-8370 |
| 権利 | Copyright, Distribution under U.S. Government purpose rights |
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