MST radar observations of Perseid meteor shower 2004

Details MST radar observations of Perseid meteor shower 2004 MST radar observations of Perseid meteor shower 2004

Sep 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006basi...34..281v&link_type=abstract

Bulletin of the Astronomical Society of India, vol. 34, Issue 3, p.281

Astronomy and Astrophysics

Astronomy

Meteor Shower, Perseids, Radar, Activity

Scientific paper

There was a special attention for Perseid meteor shower observations in view of the predictions of an intense activity on 11th August 2004 caused by a filament of dust drifting across the Earth's orbit. Results of a systematic study of Perseid meteor shower observations, carried out during 12-15 August 2004 using Indian MST radar are presented. Based on over 27 hours of observing time, we detected 2260 meteor echoes occurring between 80 km and 120 km with a mean height of 103 km. For our observations, the peak activity of the shower occured on 12/13 August, corresponding to solar longitude lambdao = 140.565± 0.16 with an average rate of 250 meteor echoes per hour. The SNR distribution of the echoes observed during the shower indicates that the smaller size meteoroids are more compared to larger size meteoroids in the perseid meteor stream. The three distinct peaks observed in the shower activity is presented and discussed.

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