(meteorobs) IMO METEOR SUMMARY REPORT: 11/12 Aug 2004, Lew Gramer (GRALE)

[GeoZay at aol.com]

>>Second, while entering my report I'd noticed that my Perseid  rates were
noticeably increasing as the night neared its end, DESPITE the  moonrise,
and the fact that my LM was steadily declining, and the PER  radiant was
already well up in the sky by the time my first period  began.

I really began to wonder why this would be - I had not thought  that the
PERs were known for sudden, rapid increases in rates during their  (back
ground) peak night! So I asked myself what the effect of "sampling  bias"
(i.e., choice of periods to sum and average over) might be on my  rates?<<
It appears that your sporadics also increased? Maybe you became more alert  
as the morning evolved? Or perhaps activity increased as you neared 6 am local  
where the earth will then be heading straight into debris in it's orbit 
around  the sun?  Or both? 
 
I informally observed the Perseids for a half hour (between 3am to 3:30  
Local) from the S. Fork of the Yuba River in Northern California on Aug 11/12.  
Saw 14 perseids with perhaps 25% blockage(Trees). This is near Nevada City,  
California. Been gold prospecting all summer at this location....done pretty  
good so far...(9 oz). 
George Zay





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