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Re: (meteorobs) Leonids video wanted
Hi Geoff Wolfe
Here are some that were posted to APML
Doug Schmutz
http://www.infowest.com/personal/s/schmutz/
----- Original Message -----
From: "Sirko Molau (via Lew Gramer)" <molau@informatik.rwth-aachendot de>
To: "Meteor Observing Mailing List" <meteorobs@atmob.org>
Sent: Tuesday, December 04, 2001 3:49 PM
Subject: (meteorobs) My first Leonid animations
> 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 *
> **************************************************************************
>
>
> The archive and Web site for our list is at http://www.meteorobs.org
> If you are interested in complete links on the 2001 LEONIDS, see:
> http://www.meteorobs.org/storms.html
> To stop getting email from the 'meteorobs' list, use the Web form at:
> http://www.meteorobs.org/subscribe.html
>
The archive and Web site for our list is at http://www.meteorobs.org
If you are interested in complete links on the 2001 LEONIDS, see:
http://www.meteorobs.org/storms.html
To stop getting email from the 'meteorobs' list, use the Web form at:
http://www.meteorobs.org/subscribe.html
References: