[A-DX] Funkprognose 23.-29. April

[Wolf Harranth <harranth@xxxxxxxx>]

_____________________________________________________________________

Solar-activity forecast for the period Apr 23 - 29, 2004

Activity level: mostly very low to low
Radio flux (10.7 cm): a fluctuation in the range 90-125 f.u.
Flares: weak (1-15/day), middle (0-2/period)
Relative sunspot number: in the range 50-100

Astronomical Institute, Solar Dept., Ondrejov, Czech Republic
e-mail: sunwatch@xxxxxxxxxx
(RWC Prague)
_____________________________________________________________________

Geomagnetic activity forecast for the period Apr 23 to Apr 29, 2004

quiet: 0
quiet to unsettled: Apr 28 and 29
unsettled: Apr 23, 24, 26 and 27
unsettled to active: Apr 25
active: 0
minor storm: 0
major storm: 0
severe storm: 0

Geomagnetic activity summary: geomagnetic field was quiet on
Apr 17, 19, 20 and 21, quiet to unsettled on Apr 15 and 18,
unsettled on Apr 16.

RWC Prague, Geophysical Institute Prague, Geomagnetic Dept,
Czech Republic
e-mail: geom@xxxxxxxxx
_____________________________________________________________________

Geomagnetic activity forecast for the period of one solar rotation


active:     Apr 23-27, 30, May 1, 3-10, 12-14, (15-17)
disturbed:  Apr 24-25, (27,) 30, May 3-4, (5, 8-10, 12), 13,
            (14-17)
quiet:      Apr 28-29, May 2, 11

Survey:   mostly quiet: Apr 14, 19-20
          quiet to unsettled: Apr 15, 17-18, 21
          quiet to active: Apr 16

Remarks: Days in brackets () => lower probability of activity
         (or lower accuracy of) forecast, depending on previous
         development on the Sun.


Frantisek K. Janda, OK1HH, Czech Propagation Interested Group
e-mail: franta.janda@xxxxxxxx
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