Stardust dynamic science at comet 81P/Wild 2 -: art. no. E12S05

被引：3

作者：

Anderson, JD

Lau, EL

Bird, MK

Asmar, SW

Clark, BC

Giampieri, G

Gilliland, KV

Pätzold, M

机构：

[1] CALTECH, Jet Prop Lab, Pasadena, CA 91109 USA

[2] Univ Bonn, Inst Radioastron, D-53121 Bonn, Germany

[3] Lockheed Martin, Denver, CO 80201 USA

[4] Univ London Imperial Coll Sci Technol & Med, Dept Math, London SW7 2BW, England

[5] Univ Cologne, Inst Geophys & Meteorol, D-50923 Cologne, Germany

来源：

JOURNAL OF GEOPHYSICAL RESEARCH-PLANETS | 2004年 / 109卷 / E12期

关键词：

Wild; 2; Stardust; dynamic science; radio science; attitude control; DSN Doppler;

D O I：

10.1029/2004JE002323

中图分类号：

P3 [地球物理学]; P59 [地球化学];

学科分类号：

0708 ; 070902 ;

摘要：

Radio Doppler data at X band (similar to8.4 GHz) and spacecraft attitude control data were obtained during the encounter with comet 81P/Wild 2. The Doppler data set an upper bound of 5 x 10(15) kg on the mass of the nucleus, about 100 times larger than theoretical estimates. The attitude control data indicate that a large dust particle with a mass in the range of 20 to 40 mg impacted the spacecraft about 15.5 s before closest approach.

引用

页码：1 / 7

页数：7

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