Solar activity forecast for the period August 25 - August 31,
2017
Activity level: mostly low
X-ray background flux (1.0-8.0 A):
in the range A8.0-B4.5
Radio flux (10.7 cm): a fluctuation in the range 75-95
f.u.
Events: class C (0-5/day), class M (0-4/period), class X (0/period),
proton (0/period)
Relative sunspot number (Ri): in the range
11-80
Martina Exnerova
RWC Prague, Astronomical Institute, Solar
Dept., Ondrejov, Czech Republic
e-mail:
sunwatch(at)asu.cas.cz
Geomagnetic activity forecast for the period
August 24 - August 31, 2017
Quiet: Aug 26 - 29
Unsettled: Aug 24 -
25, 30 - 31
Active: Aug possible Aug 31
Minor storm: 0
Major storm:
0
Severe storm: 0
Geomagnetic activity summary:
Currently, an
active episode has been recorded. At the Budkov observatory,
the local
K-index didi not exceed level 4.
Thursday, August 24, we expect at most
unsettled conditions. Next day,
Friday, August 25, we expect geomagnetic
activity decrease to quiet to
unsettled level.
Quiet to unsettled
conditions are predicted for the rest of forecasted
period. Only, at the end
of August, active episode is possible about
August 31.
Tomas
Bayer
RWC Prague
Institute of Geophysics of the ASCR, Prague
Department
of Geomagnetism
Budkov observatory (BDV)
Geomagnetic activity forecast
for the period August 25 - September 21, 2017
A next our Geomagnetic
activity forecast will be issued on
August 31, because of the author's
participation on the expedition.
Contrary to the ancient times when our
publishing began, there
are other relatively reliable and usable resources
today.
F. K. Janda, OK1HH
Czech Propagation Interested Group
OK1HH compiling weekly forecasts since January 1978
e-mail:
ok1hh(at)rsys.cz
