Leonids 1999 - Meteor
1999 Leonids Campaign - Spain
We observed the Leonids from Southern Spain, both from the Sierra Nevada Observatory (OSN) as well as from the Calar Alto Observatory. We used image-intesified video cameras, a fish-eye camera, a CCD still camera with wide-angle lens, and the 1.5-m-telescope of OSN with a spectrograph.
Our main science goals were:
In addition, we performed flux measurements and transmitted them in near-realtime to European Spacecraft Operations Centre (ESOC) in Darmstadt. While the automatic system did not quite meet our expectations, we transmitted numbers from visual counts via GSM telephone.
We presented some of our results at the EGS conference in Nice, some at the Leonid MAC workshop in Tel Aviv, both in April 2000. We wrote two publications which have been submitted to Earth, Moon, and Planets. As soon as these are accepted, we'll put them on the web.
Here are the visually estimated magnitude distributions from about 15 Minutes of video tape from our airplane-based video camera in the night of the maximum. We do not see any reduction in the number of small meteors in the linear plot. However, when plotting the meteor numbers in logarithmic scale this statement is not so clear any more... I guess I have to look at this in more detail after all.
The observing times are:
This page prepared by Detlef Koschny on 15 Feb 1999, last update 03 Jul 2000 - fixed lost images and links 03 Oct 2016.