Statistics of meteor-head echo observations using the Jicamarca 50 MHz radar

Details Statistics of meteor-head echo observations using the Jicamarca 50 MHz radar Statistics of meteor-head echo observations using the Jicamarca 50 MHz radar

Dec 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003agufmsa51b0510c&link_type=abstract

American Geophysical Union, Fall Meeting 2003, abstract #SA51B-0510

Statistics

0340 Middle Atmosphere: Composition And Chemistry, 2129 Interplanetary Dust, 5405 Atmospheres: Composition And Chemistry, 6213 Dust, 6245 Meteors

Scientific paper

We present the statistical results of recent observations of meteor-head echoes obtained with the high power-aperture Jicamarca 50 MHz radar. Our observations were concentrated at the beginning on Leonids events, specifically 2001 and 2002, nonetheless we have recently started observations at different seasons in 2003. Statistics are presented for most of the meteor parameters we are able to estimate, including among other the absolute velocities, azimuth and elevation of velocity vectors, and decelerations. So far we have not seen any evidence of Leonids signatures. Moreover, the velocity distribution of the meteors with respect to the Earth's frame of reference is clustered around the Apex, within +/- 10o transverse to the Ecliptic and no more than a few degrees in heliocentric longitude in the Ecliptic plane. Preliminary estimates of meteor fluxes, based on the meteor decelerations, are compared to the Arecibo estimates and those obtained with optical instruments.

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