[AZ-Observing] Re: Sunspot numbers
- From: "Bob Erdmann at ngcic.org" <bobe@xxxxxxxxx>
- To: <az-observing@xxxxxxxxxxxxx>
- Date: Sun, 30 Jun 2002 08:29:31 -0700
Joe,
The wrap-around point is 10,000. Therefore, 10,024 would be reported as
0024. The ARRL publishes these numbers as it is a good indication of the
reflectivity of the ionisphere which is how short wave radio works.
Hope that helps,
/Bob
Ex amateur radio: K9TQJ, W9JVM, KR6DD, W5RDX, W0NGA
----- Original Message -----
From: "Joe Macke" <jmacke@xxxxxxxxxxx>
To: <az-observing@xxxxxxxxxxxxx>
Sent: Friday, June 28, 2002 5:39 AM
Subject: [AZ-Observing] Sunspot numbers
>
> How do sunspot numbers get assigned? and why did the numbers
> start over this week?
>
> Wondering...
> Joe
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This message is from the AZ-Observing mailing list. See this message's
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This is a discussion list. Please send personal inquiries directly to
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