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OK0NAG > SOLAR 17.12.09 13:09l 72 Lines 1984 Bytes #999 (0) @ EU
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Subj: solar & geomagnetic activity forecast
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Date: Thu, 17 Dec 2009 12:00:19 +0100 (CET)
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Subject: solar & geomagnetic activity forecast
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Solar-activity forecast for the period Dec 18 - 24, 2009
Activity level: very low to low
Radio flux (10.7 cm): a fluctuation in the range 85-75 f.u.
Flares: weak (1-10/day), middle (0-2/period)
Relative sunspot number: in the range 15-45
Astronomical Institute, Solar Dept., Ondrejov, Czech Republic
e-mail: sunwatch(at)asu.cas.cz
(RWC Prague)
_________________________________________________________________
Geomagnetic activity forecast for the period Dec 18 to Dec 24, 2009
quiet: Dec 18, 19 and 24
quiet to unsettled: Dec 21 and 22
unsettled: Dec 23
unsettled to active: Dec 20
active: 0
minor storm: 0
major storm: 0
severe storm: 0
Geomagnetic activity summary: geomagnetic field was quiet from
Dec 10 to 16.
RWC Prague, Geophysical Institute Prague, Geomagnetic Dept,
Czech Republic
e-mail: geom(at)ig.cas.cz
_________________________________________________________________
Geomagnetic field during the following solar rotation should be:
active to disturbed: Dec 19 (- 20), Jan (2 - 3)
unsettled to active: Dec 22
quiet to unsettled: Dec 18
quiet: Dec (21, 23 - 24,) 25 - 31, Jan 1, 4 - 10, (11 - 13)
Survey: quiet: Dec 7 - 13, 15 - 16
quiet to unsettled: Dec 14
Notices:
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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