[A-DX] Funkprognose 24.-30. Dezember

[Wolf Harranth <harranth@xxxxxxxx>]

Solar-activity forecast for the period Dec 24 - 30, 2004

Activity level: mostly very low to low
Radio flux (10.7 cm): a fluctuation in the range 85-135 f.u.
Flares: weak (1-15/day), middle (0-1/period)
Relative sunspot number: in the range 25-85

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

Geomagnetic activity forecast for the period Dec 24 to Dec 30, 2004

quiet: Dec 29 and 30
quiet to unsettled: Dec 28
unsettled: Dec 24 to 27
active: 0
minor storm: 0
major storm: 0
severe storm: 0

Geomagnetic activity summary: geomagnetic field was quiet on
Dec 19 and 20, unsettled on Dec 16, 17, 18, 21 and 22.

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

Geomagnetic activity forecast for the period of one solar rotation

active:    Dec 24-27, Jan 2-4, (5-10), 13-14, (17)
disturbed: Dec (24,) 26, Jan (2-4,) 13-14
quiet:     Dec 28-31, Jan 1, 11(-12), 15(-16)

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

Remarks: Days in brackets () => lower probability of activity
         (or lower accuracy of) forecast, depending on previous
         development on the Sun. In addition especially at this
         time of the solar cycle, space weather conditions are
         frequently determined by short timescale events, usually
         not able to be forecasted.

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