Computer Science
Scientific paper
Aug 2006
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006pimo.conf..179f&link_type=abstract
Proceedings of the International Meteor Conference, Oostmalle, Belgium, 15-18 September, 2005 Edt.: Bastiaens, L., Verbert, J.,
Computer Science
Scientific paper
With the availability of highly sensitive CCD surveillance cameras around mid-2002, namely the Mintron 12V1C-EX, video monitoring of meteor showers has suddenly become an attractive option for ``the masses''. While not as sensitive as the image-intensified systems used in the amateur community since circa 1993, they are cheaper, easier to use and less easy to break. The question naturally arises how the rate of meteors counted in Mintron videos compares to visual rates recorded from the same location as well as to the global ZHR profile calculated by the IMO. Here preliminary results are presented from two observing runs during the maxima of the Perseids in 2004 (from Romania) and 2005 (from Germany). On average it is found that the Mintron-``Video-ZHR'', when the camera is equipped with a 6 mm f/0.8 lens and set to an integration factor of a few frames (to be able to use their shortlived wakes for a slight increase in limiting magnitude for meteors), hovers at about 1/3 of the visual ZHR on average, regardless of whether the latter is calculated globally by the IMO or by the DMS only from their own observers. But the ratio IMO/video varies widely, even for rather long intervals of thirty minutes or one hour, raising many issues.
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