mercoledì 25 aprile 2012

Fireball

Non si tratta del mitico pezzo e LP dei Deep  Purple , ma della ricerca di effetti in VLF dovuti a meteore .
Paul Nicholson , uno dei "guru"  della VLF ,assieme ad altri ,  fa un ottimo compendio in un messaggio del VLF Group su Yahoo : VLF_Group@yahoogroups.com sulle telecamere che possono segnalare e filmare questi eventi e che qui riporto :

Here is another fireball resource:

http://skysentinel.nmsu.edu/allsky/
http://skysentinel.nmsu.edu/allsky/cluster

These cameras update captures within the day though some cameras can be
slow to report.
Thomas





> Some meteor camera networks that we might use in Europe :
> IMO Video Meteor Network
> http://www.imonet.org/
> Some cameras within the area covered by our receivers.
> But many too far east for best sensitivity and accuracy.
> No access to recent events although they do seem to have an
> open data policy. I emailed enquiry but no response yet.
> Polish Fireball Network
> http://www.pkim.org/
> Recent events posted on the web. Cameras are little too far
> east for our network of receivers. We would miss weak signals.
> Worth looking at the bigger fireballs.
> European Fireball Network
> http://www.dlr.de/pf/en/desktopdefault.aspx/tabid-623/1043_read-26813/
> No web access to recent events.
> In North America,
> NASA's All Sky Fireball Network
> http://fireballs.ndc.nasa.gov/
> We can use the Polish network and NASA because they make
> sufficient data available promptly.
> Now keeping about 5 days of VLF data but a few problems with
> timestamping. The two events that I've tried to examine so
> far both coincided with timing problems or stream outages but
> things will settle down.
> North America not yet operational - only two receivers with
> timestamps.
> Paul Nicholson

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