When conditions were very good last
week, someone mentioned to me the "moonlight"
theory of enhanced conditions, which has been
discussed here from time to time. Seems like
we have an opportunity to test this theory since
moonlight peaked on October 17, and yet the K
index has varied quite a bit over the past week.
Here's K-index data from the NOAA site:
http://www.sec.noaa.gov/ftpdir/indices/dayind/
Date K-Sum (of 3 hour indices)
11 Oct 10
12 Oct 01 <--exceptionally low!
13 Oct 08
14 Oct 05
15 Oct 03
16 Oct 15
17 Oct 20 <--full moon
18 Oct 11
I'll not draw conclusions but
simply present the data for you to view
and compare with your own log data.
One interesting thing was that we had
some very early openings to Europe
last week. On 14 Oct at 2201z, I had
a QSO with G3XGC almost 50 minutes
before my sunset, and I noticed similar
reports from many others. I heard Geoff
even earlier before signals were strong
enough to make contact.
73, Bill W4ZV
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