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OK0NAG > SOLAR 15.09.11 15:07l 97 Lines 3429 Bytes #999 (0) @ EU
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_____________________________________________________________________
Solar-activity forecast for the period Sep 16 - 22, 2011
Activity level: low to moderate
Radio flux (10.7 cm): a fluctuation in the range 115-155 f.u.
Flares: weak (numerous), middle (1-4/pariod)
Relative sunspot number: in the range 130-180
Astronomical Institute, Solar Dept., Ondrejov, Czech Republic
e-mail: sunwatch(at)asu.cas.cz
(RWC Prague)
_____________________________________________________________________
Geomagnetic activity forecast for the period Sep 16 to Sep 22, 2011
quiet: Sep 16, 17, 21 and 22
quiet to unsettled: Sep 18 and 20
unsettled: 0
active: Sep 19
minor storm: 0
major storm: 0
severe storm: 0
Geomagnetic activity summary:
geomagnetic field was quiet on Sep 8 and 14, unsettled
on Sep 11 and 13, active on Sep 9, 10 and 12.
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:
quiet: Sep 25 - 27, Oct 3, 9 - 11
mostly quiet: Sep 20 - 21
quiet to unsettled: Sep 16, 19, 22 - 24, 28 - 29
quiet to active: Oct 2
quiet to minor storm: Sep 30, Oct 4
quiet to major storm: Oct 1
mostly unsettled: Oct 6 - 8
unsettled to active: Sep 17 - 18
unsettled to minor storm: Oct 5
minor to major storm: -
Survey: quiet: Sep 8, 14
mostly quiet: -
quiet to unsettled: Sep 7
quiet to active: -
quiet to minor storm: Sep 11, 13
quiet to major storm: Sep 9 - 10
mostly unsettled: -
unsettled to active: -
unsettled to minor storm: Sep 12
minor to major storm: Sep 10
Notices:
High probability of changes in solar wind which may caused
changes in magnetosphere and ionosphere is expected about
Sep 18 - 19, 23 - 24, 29, Oct 1 - 2, 5 - 6.
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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