GRAVITATIONAL COEFFICIENTS AND INTERNAL STRUCTURES OF THE ICY GALILEAN SATELLITES - AN ASSESSMENT OF THE GALILEO ORBITER MISSION

被引：23

作者：

SCHUBERT, G ^{[1
]}

LIMONADI, D ^{[1
]}

ANDERSON, JD ^{[1
]}

CAMPBELL, JK ^{[1
]}

GIAMPIERI, G ^{[1
]}

机构：

[1] CALTECH,JET PROP LAB,PASADENA,CA 91109

来源：

ICARUS | 1994年 / 111卷 / 02期

关键词：

D O I：

10.1006/icar.1994.1154

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Simulated radio tracking data from one flyby of Europa, two flybys of Ganymede, and two flybys of Callisto by the Galileo Orbiter yield estimates of the standard errors in the gravitational coefficient J(2) of 44, 8.5, and 12 (in units of 10(-6)) for Europa, Ganymede, and Callisto, respectively; errors in C-22 (in units of 10(-6)) are 12, 1.7, and 2.1. These errors are sufficiently small that the values of J(2) and C-22 to be measured by Galileo should suffice to determine if the ice and rock in the satellite interiors are uniformly mixed or separated, so long as the bodies are in hydrostatic equilibrium. (C) 1994 Academic Press, Inc.

引用

页码：433 / 440

页数：8

共 10 条

[1]

ANDERSON JD, 1992, SPACE SCI REV, V60, P591, DOI 10.1007/BF00216869

[2]

CAMPBELL JK, 1984, B AM ASTRON SOC, V16, P705

[3] TIDAL DISSIPATION IN THE SOLID CORES OF THE MAJOR PLANETS [J].