首页 | 本学科首页   官方微博 | 高级检索  
     检索      


Meteoroid structure from radar head echoes
Authors:M D Campbell-Brown  S Close
Institution:University of Western Ontario, London, ON N6A 3K7, Canada;Los Alamos National Laboratory, Mail Stop: D436, Los Alamos, NM 87545, USA
Abstract:The Advanced Research Project Agency (ARPA) Long Range Tracking and Instrumentation Radar has recorded thousands of head echoes from small meteoroids, which include detailed trajectory information as well as ionization measurements. In total, 25 complete ionization curves have been matched using a detailed model of meteoroid ablation, though the solutions are not necessarily unique. While measurements of the spread along the trajectory of the echoes indicate that most meteors in this size range do not have large separations among fragments, the ionization curves are consistent with fragmenting bodies in the most cases. Very precise radar measurements of meteors can be a valuable source of data on the chemical and physical properties of small meteoroids.
Keywords:meteors  meteoroids
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号