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THe K7RA Solar Update

ARRL

Well-Known Member
Nov 15, 2008
10,994
54
58
No sunspots this week. The pattern persists, and this surprises me. But Spaceweather.com reported a couple of weak, barely emerging spots, never numbered, and by their magnetic polarity were from new Cycle 25.

We rely on NOAA for official sunspot numbers, and the most recent one reported was 11 on June 15. See ftp://ftp.swpc.noaa.gov/pub/indices/DSD.txt.

Average daily solar flux over the recent r...

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