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OK0NAG > SOLAR 31.03.11 13:53l 101 Lines 3522 Bytes #999 (0) @ EU
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_____________________________________________________________________
Solar-activity forecast for the period Apr 1 - 7, 2011
Activity level: very low to low
Radio flux (10.7 cm): a decrease in the range 120-90 f.u.
Flares: weak (3-15/day)
Relative sunspot number: in the range 90-50
Astronomical Institute, Solar Dept., Ondrejov, Czech Republic
e-mail: sunwatch(at)asu.cas.cz
(RWC Prague)
_____________________________________________________________________
Geomagnetic activity forecast for the period Apr 1 to Apr 7, 2011
quiet: Apr 2, 3 and 4
quiet to unsettled: Apr 1 and 5
unsettled: Apr 6 and 7
active: 0
minor storm: 0
major storm: 0
severe storm: 0
Geomagnetic activity summary:
geomagnetic field was quiet from Mar 24 to 30.
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: Apr 10 - 13, 15, 22 - 23, 27
mostly quiet: Apr 5 - 6, 9, 14, 20 - 21, 24
quiet to unsettled: Apr 1 - 3, 16
quiet to active: -
quiet to minor storm: Apr 4, 17 - 19
quiet to major storm: Apr 7 - 8, 25 - 26
mostly unsettled: -
unsettled to active: -
unsettled to minor storm: -
active to minor storm: -
active to major storm: -
minor to major storm: -
Survey: quiet: Mar 24 - 28
mostly quiet: -
quiet to unsettled: Mar 29 - 30
quiet to active: Mar 23
quiet to minor storm: -
quiet to major storm: -
mostly unsettled: -
unsettled to active: -
unsettled to minor storm: -
active to minor storm: -
active to major storm: -
minor to major storm: -
Notices:
We are entering to slightly calmer period.
High probability of changes in solar wind which may caused
changes in magnetosphere and ionosphere is expected for
April (6,) 7 - 8, (21 - 22,) 23.
Days in brackets refer to a lower probability of possible
activity enhancements depending on previous development
on the Sun. Present forecasts are less reliable.
F. K. Janda (OK1HH), Czech Propagation Interested Group
e-mail: ok1hh(at)rsys.cz
_____________________________________________________________________
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