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OK0NAG > SOLAR 16.09.10 10:35l 75 Lines 2169 Bytes #999 (0) @ EU
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Subj: solar & geomagnetic activity forecast
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Date: Thu, 16 Sep 2010 11:31:01 +0200 (CEST)
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To: solar@eu
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Subject: solar & geomagnetic activity forecast
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Od: sunwatch <sunwatch@asu.cas.cz>
Predmet:
Datum: Thursday, September 16, 2010 11:28 AM
Solar-activity forecast for the period Sep 17 - 23, 2010
Activity level: predominantly very low to low
Radio flux (10.7 cm): a fluctuation in the range 75-85 f.u.
Flares: weak (0-10/day), middle (0-1/period)
Relative sunspot number: in the range 22-50
Astronomical Institute, Solar Dept., Ondrejov, Czech Republic
e-mail: sunwatch(at)asu.cas.cz
(RWC Prague)
_________________________________________________________________
Geomagnetic activity forecast for the period Sep 17 to Sep 23, 2010
quiet: Sep 18 and 19
quiet to unsettled: Sep 17 and 20
unsettled: Sep 21, 22 and 23
active: 0
minor storm: 0
major storm: 0
severe storm: 0
Geomagnetic activity summary: geomagnetic field was quiet from
Sep 9 to 13 and 15, quiet to unsettled on Sep 14.
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
Geomagnetic field during the following solar rotation should be:
active to disturbed: Sep 21, (24,)
unsettled to active: Oct 5 - 6, 12
quiet to unsettled: Sep 22 - 23, 30, Oct 4, 7
quiet: Sep 17 - 19, (20, 25,) 26 - 29, Oct 1 - 3, 8 - 11, (13)
Survey: quiet: Sep 10 - 13
quiet to unsettled: Sep 9, 14 - 15
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: ok1hh(at)rsys.cz
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