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(meteorobs) NAMN flash July shower analysis Part 2
I'm Baaaack,
Here is the July NAMN data on the Perseids and Sporadics.
Remember, these are raw, uncorrected counts.
Date PER/H Spor/H
5/6 ///// 2.6
6/7 ///// 2.9
8/9 ///// 6.3
10/11 ///// 4.8
11/12 ///// 5.6
13/14 1.5 6.4
14/15 2.6 5.0
15/16 3.2 5.8
16/17 1.3
16/17* 3.1 11.4
17/18 1.2
17/18* 2.7 6.8
18/19 0.8 8.5
19/20 1.1 5.7
20/21 1.4 11.0 see notes
23/24 1.3 4.2
27/28 0.0 0.9 see notes
Perseid hot spots:
July 13/14 5.0/hr 0700-0817
July 14/15 6.7/hr 0830-0930
July 15/16 5.4/hr 0730-0830
July 15/16 4.0/hr 0930-1030
July 16/17 4.0/hr 0650-0756,1011-1136
Of note is the fact that Perseid rates, including these mini-peaks all
occurred between the 13/14 (when observations started)and 16/17. Since then
single observer rates did not exceed 2/hr through the 27/28th.
Dates above with an asterisk (*) are times when Lunsford and Zay were
observing together.
I have not yet discussed with them how their fields of view were arranged,
so some double observer duplication may have occurred, which would lower
the actual rate.
Two comments regarding the sporadic rates.The peak on July 20/21 is
from Lew Gramer, who had a limiting magnitude of 6.74!! I'd like to meet
you there some time Lew, after a cold front goes through.
As a result he logged 25 sporadics in 1.63 hours.At the opposite end of the
spectrum, Penner had to contend with a 4.82 limiting magnitude and only
logged 2 sporadics in 2.26 hours on the 27/28th.
Well this should all give you some reading material between daytime
naps this weekend.
May the East coast Cold front pass offshore, clearing out the Southeast and
Northeast. and may the monsoon move to the east, leaving southern
California high and dry. The midwest looks pretty good.
Hope Neil gets an unexpected surprise of dry air, and since there are so
few serious observers, may each and every throughout the world get at least
some clear skies, and the Perseids put on a great show for all.
Wayne
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