Physics
Scientific paper
Oct 2003
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003jimo...31..153m&link_type=abstract
WGN, Journal of the International Meteor Organization, vol. 31, no.5, p.153-160
Physics
Scientific paper
An analysis of results submitted to the SPA Meteor Section from the 2002 Leonid epoch, particularly on November 18/19, is presented and discussed. Visual maxima were identified on November 19 at 4h05m +- 5m UT (lambda (eq. 2000.0) = 236.61+-0.003 deg, ZHR = 3180+-80) and 10h45m+-5m UT (lambda = 236.89+-0.003 deg, ZHR = 2640+-110). Video data showed a peak coincident with the first visual maxiμm. Radio results suggested a first maxiμm in the 10-minute interval between 04h10m-04h20m UT, a close coincidence to the visual peak given the binning interval size. The second peak was less clear-cut in the 10-minute-interval radio data, with a main maxiμm sometime between 10h50m and 11h10m UT, both times +-10m. There were clear indications in the visual and radio data that the first peak was relatively rich in brighter meteors than the second. Imaging results allowed the determination of the Leonid radiant on November 18/19 near the first storm maxiμm from UK results alone (at alpha = 153+-2.5 deg, delta = +20+-3 deg) and from video data from Spain (at alpha = 152.8+-0.2 deg, delta = +21.7+-0.2 deg).
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