Activity level: mostly very low to low
X-ray background flux (1.0-8.0 A): in
the range B1.5-B8.0
Radio flux (10.7 cm): a fluctuation in the range 90-130
f.u.
Events: class C (0-10/day), class M (0-5/period), class X (0/period),
proton (0/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
_________________________________________________________________________
Geomagnetic
activity forecast for the period July 17 - 23, 2015
Next days, July 17 -
19, we expect at most quitet to unsettled conditions.
Monday, July 20, the
local geomagnetic field is expected as unsettled.
Next days, July 21-22,
active conditions are expected because of
equatorial coronal hole (a month
ago, the K-index at Budkov observatory
had reached to 7). Next week, the
addition of CME to speed solar wind is
less probable, we expected geomagnetic
activity should not exceed minor
storm level.
Last day of forecasted week,
we expect at most unsettled conditions.
Tomas Bayer
Institute of
Geophysics ASCR
Budkov Geomagnetic Observatory
(BDV)
_________________________________________________________________________
Geomagnetic
activity forecast for the period July 17 - August 11, 2015
Geomagnetic
field will be:
quiet on July 25 - 26, 28 - 29, August 4
mostly quiet on
July 23 - 24, 27, August 3, 5, 10 - 11
quiet to unsettled on July 17 - 18, 20
- 21, August 7, 9
quiet to active on July 19, 22, 30, August 2, 6
active
to disturbed on July 31, August 1, (8)
Amplifications of the solar wind
are expected on July (19,)
20 - 25, (26,) August (1 - 5, 8,) 9 -
10
Remark:
- Reliability of predictions remains reduced in pesent
phase od solar cycle.
- Parenthesis means lower probability of activity
enhancement.
F. K. Janda, OK1HH
Czech Propagation Interested
Group
(OK1HH & OK1MGW, weekly forecasts since 1978)
e-mail:
ok1hh(at)rsys.cz
