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OK0NAG > SOLAR 16.04.09 11:47l 82 Lines 2521 Bytes #999 (0) @ EU
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Subj: solar & geomagnetic activity forecast
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Date: Thu, 16 Apr 2009 12:40:09 +0200 (CEST)
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Subject: solar & geomagnetic activity forecast
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Solar-activity forecast for the period Apr 17 - 23, 2009
Activity level: very low
Radio flux (10.7 cm): a fluctuation in the range 68-72 f.u.
Flares: weak (0-2/period)
Relative sunspot number: in the range 0-25
Astronomical Institute, Solar Dept., Ondrejov, Czech Republic
e-mail: sunwatch(at)asu.cas.cz
(RWC Prague)
_____________________________________________________________________
Geomagnetic activity forecast for the period Apr 17 to Apr 23, 2009
quiet: Apr 18, 19, 20, 22 and 23
quiet to unsettled: Apr 21
unsettled: Apr 17
active: 0
minor storm: 0
major storm: 0
severe storm: 0
Geomagnetic activity summary: geomagnetic field was quiet from
Apr 12 to 15, unsettled on Apr 9, 10 and 11.
RWC Prague, Geophysical Institute Prague, Geomagnetic Dept,
Czech Republic
e-mail: geom(at)ig.cas.cz
_____________________________________________________________________
Geomagnetic activity forecast for the period of one solar rotation
unsettled to active: Apr 17, (18, 21,) 24, (26, 28,) May 5, 8-9
active to disturbed: Apr (20, 23,) May 6-7
quiet: Apr 19, 22, 25, 27, 29-30, May 1-4, (10,) 11-12, (13)
Survey: quiet: Apr 14-15
mostly quiet: Apr 8, 13
quiet to unsettled: Apr 9, 11-12
quiet to active: Apr 10
quiet to disturbed -
mostly unsettled -
unsettled to active -
unsettled to disturbed -
mostly active -
active to disturbed -
disturbed -
Notices:
Mainly quiet period before the enhancement of solar activity,
therefore all forecasts are less reliable than usually.
Days in brackets refer to a lower probability
of possible activity enhancements depending
on previous development on the sun.
F. K. Janda, OK1HH, Czech Propagation Interested Group
e-mail: franta.janda(at)quick.cz
_____________________________________________________________________
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