HIGH-RESOLUTION IMAGES OF VESTA AT 1.65 MU-M

被引：17

作者：

MCCARTHY, DW ^{[1
]}

FREEMAN, JD ^{[1
]}

DRUMMOND, JD ^{[1
]}

机构：

[1] PHILLIPS LAB,KIRTLAND AFB,NM 87117

来源：

ICARUS | 1994年 / 108卷 / 02期

关键词：

D O I：

10.1006/icar.1994.1063

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

A series of high spatial resolution (approximate 140 km) images of the asteroid 4 Vesta has been obtained in reflected light at 1.65 mum during the solar oppositions of 1990 and 1992. Full longitudinal coverage has provided a solution for the triaxial dimensions and rotational pole orientation. Although resolvable surface features are indicated from other techniques, they are not imaged here and must have low contrast relative to the overall background of reflected light. However, in all 48 images, a nonmoving ''spot,'' a possible glint(s), does appear near the sub-Sun point contributing approximately 10-18% of the total flux. This feature does not appear in similar observations of the asteroid 1 Ceres. (C) 1994 Academic Press, Inc.

引用

页码：285 / 297

页数：13

共 37 条

[1] CHIPS OFF OF ASTEROID-4 VESTA - EVIDENCE FOR THE PARENT BODY OF BASALTIC ACHONDRITE METEORITES [J].