sabato 11 luglio 2015

Propagation outlook from PIG

Solar activity forecast for the period July 10 - 16, 2015

Activity level: mostly low
X-ray background flux (1.0-8.0 A): in the range B2.5-B9.0
Radio flux (10.7 cm): a fluctuation in the range 95-135 f.u.
Events: class C (0-12/day), class M (0-6/period), class X (0/period),
        proton (0/period)
Relative sunspot number (Ri): in the range 20-95

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 July 10 - 16, 2015

At the Friday, July 10, we expect at most unsettled conditions. Next day,
Saturday, July 11, active episode is expected (geomagnetic conditions can
reach minor storm level but for Budkov observatory, K-index = 4 is more
probable).
At the July 12-13, unsettled conditions are most probable. Tuesday, July
14, we expect at most unsettled conditions with possible active period.
The last days of forecasted week, quiet to unsettled conditions are probable.

Tomas Bayer
Institute of Geophysics ASCR
Budkov Geomagnetic Observatory (BDV)
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Geomagnetic activity forecast for the period July 10 - Aug 5, 2015

Geomagnetic field will be:
quiet on July 15
mostly quiet on July 16 - 17, 26 - 29, Aug 3 - 5
quiet to unsettled on July 10, 13 - 14, 18, 22 - 25, Aug 1 - 2
quiet to active on July 11 - 12, 19 - 21, 30 - 31
active to disturbed on July (11)

Amplifications of the solar wind are expected on July 10 - 12, 30 - 31

Remark:
- Reliability of predictions remains more reduced than before.

Petr Kolman, OK1MGW, Czech Propagation Interest Group
(OK1HH & OK1MGW, weekly forecasts since 1978)
e-mail: kolmanp(at)razdva.cz