AN ANALYTIC MODEL FOR THE PHOBOS SURFACE

被引：30

作者：

DUXBURY, TC ^{[1
]}

机构：

[1] CALTECH,JET PROP LAB,4800 OAK GROVE DR,PASADENA,CA 91109

来源：

PLANETARY AND SPACE SCIENCE | 1991年 / 39卷 / 1-2期

基金：

美国国家航空航天局;

关键词：

D O I：

10.1016/0032-0633(91)90157-6

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Analytic expressions are derived to model the surface topography and the normal to the surface of Phobos. The analytic expressions are comprised of a spherical harmonic expansion for the global figure of Phobos, augmented by addition terms for the large crater Stickney and other craters. Over 300 craters were measured in more than 100 Viking Orbiter images to produce the model. In general, the largest craters were measured since they have a significant effect on topography. The topographic model derived has a global spatial and topographic accuracy ranging from about 100 m in areas having the highest resolution and convergent, stereo coverage, up to 500 m in the poorest areas.

引用

页码：355 / 376

页数：22

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