RADAR IMAGES OF ASTEROID-4179 TOUTATIS

被引：77

作者：

OSTRO, SJ

HUDSON, RS

JURGENS, RF

ROSEMA, KD

CAMPBELL, DB

YEOMANS, DK

CHANDLER, JF

GIORGINI, JD

WINKLER, R

ROSE, R

HOWARD, SD

SLADE, MA

PERILLAT, P

SHAPIRO, II

机构：

[1] WASHINGTON STATE UNIV, SCH ELECT ENGN & COMP SCI, PULLMAN, WA 99164 USA

[2] CORNELL UNIV, NATL ASTRON & IONOSPHERE CTR, ITHACA, NY 14853 USA

[3] CTR ASTROPHYS, CAMBRIDGE, MA 02138 USA

[4] ARECIBO OBSERV, ARECIBO, PR 00613 USA

来源：

SCIENCE | 1995年 / 270卷 / 5233期

关键词：

D O I：

10.1126/science.270.5233.80

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Delay-Doppler images of the Earth-crossing asteroid 4179 Toutatis achieve resolutions as fine as 125 nanoseconds (19 meters in range) and 8.3 millihertz (0.15 millimeter per second in radial velocity) and place hundreds to thousands of pixels on the asteroid, which appears to be several kilometers long, topographically bifurcated, and heavily cratered. The image sequence reveals Toutatis to be in an extremely slow, non-principal axis rotation state.

引用

页码：80 / 83

页数：4

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