Other
Scientific paper
Aug 2002
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002jimo...30..120o&link_type=abstract
WGN, Journal of the International Meteor Organization, vol. 30, no. 4, p. 120-126
Other
1
Scientific paper
On November 18, 2001, the Leonid meteor storm appeared over Japan. To measure the Leonid activity in 2001, radio meteor observations of 77 sites in Japan started the monitoring campaign on November 1. On November 15 and 17 in the UT evening, many long echoes were observed. On November 18 in the UT evening, we caught the Leonid meteor storm activity by radio. Around the peak time, however, it became impossible to count the number of echoes because the number of long echoes increased. Therefore, we estimated the Leonid activity by analyzing a "reflection time" of meteor echoes. As a result, we found a clear main peak (18h20m -18h30m UT on November 18i) and sub-peak (21h20m-21h30m UT) of the storm. This main peak is due to the components of the 9-revolution (1699) and 4-revolution (1866) dust trail, and the sub peak is probably due to components not computed. And we also found that the fireball activity was nearly constant in time around the storm. Therefore, this fireball component is probably another com component different from those which produced the main and sub-peak.
Amikura S.
Asahina T.
Maegawa Kazutoshi
Miyao K.
Ogawa Hideo
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