Activity level: mostly low to moderate
X-ray background flux (1.0-8.0 A): in the range B2.0-B9.0
Radio flux (10.7 cm): a fluctuation in the range 100-140 f.u.
Events: class C (0-12/day), class M (0-3/day), class X (0/period),
proton (0-1/period)
Relative sunspot number (Ri): in the range 15-90
Jozef Lesko
RWC Prague, Astronomical Institute, Solar Dept., Ondrejov, Czech Republic
e-mail: sunwatch(at)asu.cas.cz
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Geomagnetic activity forecast for the period December 25 - 31, 2015
Next two days, e.g. Dec 25 and 26, we expected quiet to unsettled conditions.
Dec 27 - 28 quiet to unsettled conditions, too, with more probable
unsettled state, an isolated active event is possible.
Dec 29 - 31, we expect quiet to unsettled conditions.
Tomas Bayer
Institute of Geophysics ASCR
Budkov Geomagnetic Observatory (BDV)
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Geomagnetic activity forecast for the period Dec 25, 2015 - Jan 20, 2016
Geomagnetic field will be:
quiet on January 18 - 19
mostly quiet on December 30 - 31, January 15 - 17
quiet to unsettled on December 29, January 4, 8 - 9, 12 - 14, 20
quiet to active on December 25 - 28, January 3, 5, 7, 11
active to disturbed on January 1 - 2, 6, 10
Amplifications of the solar wind are expected on December 25 - 28,
January 1 - 3, 5 - 6, 10 - 11
Remarks:
- Reliability of predictions remains reduced in present solar cycle phase.
- Parenthesis means lower probability of activity enhancement.
Petr Kolman, OK1MGW
Czech Propagation Interested Group
(OK1HH & OK1MGW, weekly forecasts since 1978)
e-mail: kolmanp(at)razdva.cz
