(meteorobs) IMO Shower Circ.: 2nd Perseid profile

RainerArlt rarlt at aip.de
Fri Aug 13 16:12:39 EDT 2004


David and all,

> I am still analyzing my data from Wed. night and Thursday morning so
> will get back to you with my numbers later.  I can say it was the best
> Perseid shower I have seen since the 90's. 

Excellent, thanks for the note. It's definitely still worth
sending in data. I am continuously adding records to the
global picture. Especially data from American longitudes
are most helpful as we still have no real clue to the
traditional maximum.

As to the weakness in video records: Concerning European
video data, the peak may be screened by the low radiant
in the beginning of the night (~30deg).As the radiant
moves up quickly, dropping rates may be compensated by 
geometric number increase. The peak wasn't prominent in
western-European visual observers' impressions either.

Sirko Molau is currently looking through his video records
and give  N/sin(h) values for the night 11/12. Problem is
cloud moving through...

Best wishes,
Rainer


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