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Re: (meteorobs) My first Leonid animations
Sirko,
Please allow me to say.. Excellent work!.. I want to let you know that
your hard work in video meteor science is very much appreciated.
Thank you... or shall I say .. danke schoen
Prost!
Joseph Assmus
San Diego, CA
>From: Sirko Molau (via Lew Gramer) <molau@informatik.rwth-aachendot de>
>Reply-To: meteorobs@atmob.org
>To: Meteor Observing Mailing List <meteorobs@atmob.org>
>Subject: (meteorobs) My first Leonid animations
>Date: Tue, 04 Dec 2001 17:49:07 -0500
>
>
> >To: imo-news@yahoogroups.com, akm-mitglieder@egroups.com,
>leo2001@egroups.com
> >Date: Tue, 4 Dec 2001 13:34:29 +0100 (MET)
>
>Folks,
>
>in 1999 I was somewhat disappointed by my video records of the Leonids
>storm.
>I had choosen a small field of view with good limiting magnitude but
>recorded
>just a few hundred Leonids. In fact, even during the storm Taurids and
>other meteors made up about 20% of all detected meteors.
>
>So this year I decided for the opposite choice. I operated AVIS with a
>16mm f/2.8 fish-eye lens which gave me a 95 deg field of view and a
>limiting magnitude of close to 5 mag. It turned out that this was a good
>choice, especially since the percentage of bright meteors was much higher
>than in 1999. A first run of the meteor detection software MetRec revealed
>more than 2000 meteors, among them a number of fireballs, in 8 hours of
>effective observing time. There are up to 20 recorded meteors per minute
>which is about half of what I saw with my own eyes. Hence, the video gives
>a good account of the visual impression of the storm.
>
>The analysis will be refined in the following days, but to have already
>something picturesque I created a first animation of the 2001 Leonid
>storm last night. It covers the time 17:00-21:00 UT on November 18. Each
>of the 240 image of the sequence was made of 1500 video frames, i.e.
>one minute of recordings.
>
>The animation is not yet perfect, but I guess it's a good start.
>
>There are two versions available:
> - half PAL resolution (388x284 pixel, 18 MB!!!)
>
>http://www-i6.informatik.rwth-aachendot de/Colleagues/molau/leo01/leo01an1.gif
> - quarter PAL resolution (192x144, pixel, 4.3 MB)
>
>http://www-i6.informatik.rwth-aachendot de/Colleagues/molau/leo01/leo01an2.gif
>
>I hope you enjoy it.
>
>Cheers,
>Sirko Molau
>
> --
>**************************************************************************
>* Dipl.-Inform. Sirko Molau * *
>* RWTH Aachen, Lehrstuhl fuer Informatik VI * __ *
>* Ahornstr. 55, D-52056 Aachen, Germany * " 2B v 2B " *
>* * *
>* phone: +49-241-8021615 * Shakespeare *
>* fax : +49-241-8022219 * *
>* email: molau@informatik.rwth-aachendot de * *
>**************************************************************************
>* www : http://www-i6.informatik.rwth-aachendot de/Colleagues/molau *
>**************************************************************************
>
>
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>If you are interested in complete links on the 2001 LEONIDS, see:
>http://www.meteorobs.org/storms.html
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