Meteoroid structure from radar head echoes

Details Meteoroid structure from radar head echoes Meteoroid structure from radar head echoes

Dec 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007mnras.382.1309c&link_type=abstract

Monthly Notices of the Royal Astronomical Society, Volume 382, Issue 3, pp. 1309-1316.

Astronomy and Astrophysics

Astronomy

5

Meteors, Meteoroids

Scientific paper

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.

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