(meteorobs) Delayed Perseid Peak?

[Chris Peterson]

Anthony-

I didn't observe a later peak. My video data shows a broad peak on 8/12 
around UT 10:00, when I was recording over 50 meteors per hour brighter than 
mag 1. On 8/13 I had a fairly uniform rate, increasing slightly over the 
evening because of the radiant position. Except for a very brief spike at UT 
10:15 (10 events in 15 minutes), the general level in the early morning 
hours was around 20 meteors per hour.

While the brightest fireballs I recorded were on 8/13, the fireball rate 
wasn't substantially different between the two nights: on 8/12 I recorded 
152 meteors, of which 23 were brighter than mag -4 (15%); on 8/13 I recorded 
117 meteors, of which 12 were brighter than mag -4 (10%).

While solidly locating the peak of such a broad shower is tricky, I'd say my 
data puts it within an hour or two of the predicted time. My 8/12 data seems 
to show more structure in the frequency: the rate rose and fell with about a 
30-minute cycle. On 8/13, the rate was much more uniform.

Chris

*****************************************
Chris L Peterson
Cloudbait Observatory
http://www.cloudbait.com


----- Original Message ----- 
From: <GLDSKTR at aol.com>
To: <meteorobs at meteorobs.org>
Sent: Friday, August 15, 2008 5:16 AM
Subject: (meteorobs) Delayed Perseid Peak?


> It seems that the Perseid peak arrived a day LATER than originally
> calculated, according to most reports. Many more fireballs reported also. 
> I  noticed
> an increase in fireballs as the morning of 8/12 approached.
> Could this have been just a total miscalculation, or a possible part  of 
> the
> stream that just dispersed over time, and was a complete  surprise?