Solar activity forecast for the period January 27 - February 2,
2017
Activity level: mostly very low to low
X-ray background flux
(1.0-8.0 A): in the range A6.5-B2.5
Radio flux (10.7 cm): a fluctuation in
the range 70-90 f.u.
Events: class C (0-3/day), class M (0-1/period), class X
(0/period), proton (0/period)
Relative sunspot number (Ri): in the range
11-80
Tomas Blaha
RWC Prague, Astronomical Institute, Solar Dept.,
Ondrejov, Czech Republic
e-mail: sunwatch(at)asu.cas.cz
Geomagnetic
activity forecast for the period January 27 - February 2, 2017
Quiet:
Jan 26, 29 - 30
Unsettled: Jan 31 - Feb 2
Active: possible Jan 30, Feb
2
Minor storm: possible but unlikely Feb 2
Major storm: 0
Severe
storm: 0
Geomagnetic activity summary:
Generally, we expect at most
unsettled conditions with isolated active
episode. The active episode is most
probable at the end of forecasted
preiod about February 2. The active episode
is also possible Jan 27 - 28,
we expect an isolated event.
The other days,
we expect quiet to unsettled conditions.
Tomas Bayer
RWC
Prague
Institute of Geophysics of the ASCR, Prague
Department of
Geomagnetism
Budkov observatory (BDV)
Geomagnetic activity forecast
for the period January 27 - February 22, 2017
Geomagnetic field will
be:
quiet on January 27, February 1, 11 - 12, 14, 22
mostly quiet on
January 30, February 9 - 10, 20 - 21
quiet to unsettled on January 31,
February 13, 19
quiet to active on January 28 - 29, February 3 - 5, 15,
17
active to disturbed on February 2, 6 - 7 (8, 16, 18)
Amplifications
of the solar wind from coronal holes are expected
on January 26, (31,)
February (1 - 5,) 9, (15)
Remark:
- Parenthesis means lower
probability of activity enhancement.
- Third week observed indicia of
upcoming enhancement in solar activity.
Therefore, the current forecast is
less reliable.
F. K. Janda, OK1HH
Czech Propagation Interested
Group
OK1HH compiling weekly forecasts since 1978
e-mail:
ok1hh(at)rsys.cz
