[DX] A-indeksi tuntematon
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[DX] A-indeksi tuntematon



Muistaako kukaan koskaan nähneensä/kuulleensa ennen 
tämäntyyppistä Boulderin ilmoitusta?

:Product: Geophysical Alert Message wwv.txt
:Issued: 2004 Nov 12 2110 UTC
# Prepared by the US Dept. of Commerce, NOAA, Space Environment Center
#
#          Geophysical Alert Message
#
Solar-terrestrial indices for 12 November follow.
Solar flux 97 and estimated mid-latitude A-Index ???.
The mid-latitude K-index at 2100 UTC on 12 November was 2 (19 nT).

Space weather for the past 24 hours has been moderate.
Geomagnetic storms reaching the G1 level occurred.
Solar radiation storms reaching the S2 level occurred.

Space weather for the next 24 hours is expected to be minor.
Solar radiation storms reaching the S1 level are expected.

(gopher://solar.sec.noaa.gov/00/latest/wwv.txt)

A-indeksiä ei osata määritellä? Tai ei haluta? Tai se on vain 
unohtunut? Poikkeuksellista.

73's JLN



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