Thursday, July 21, 2005
July 19 and 20 - no thunderstorms
Tuesday, July 19, 2005
First night - FIRST SPRITE!
A careful re-analysis of the images we collected last night showed that we indeed caught a sprite, far away over northern Italy!
Here below, the image of the sprite after reprocessing it.
There is in fact a coincidence with a lightning +CG flash occurred just after 00:45 UCT as shown on the map (medium sized cross at 45.3N and 10E - just off Milan). There may have been more sprites in that region but the thickness of the atmosphere over that distance (more than 700 Km) has made them hardly observable. [click on the images to enlarge them]
First night of observation
The picture on the left shows lightning flashes detected around 2:00 am. The two stars over France show the location of the two cameras, the one at Puy du Dome (centre) still not operational. Most of the activity has been on Northern Italy, too far for the Pic du Midi camera.
Only a few lightning flashes triggered the event-detection software, resulting in no-sprite images.