Solar activity forecast for the period October 28 - 29, 2017


Issued: 2017 October 27 17:15 UTC


Analysis from October 26/1700 UTC to October 27/1700 UTC:

Sunspot Regions on the Disk 27/1623 UTC (SDO Continuum): 2
The Largest Event: B1.8 from Region 2686 at 27/0044 UTC
X-ray background flux (1.0-8.0 A) October 26: A7.5
Radio Flux 10.7 cm at 26/2300 UTC (Penticton): 77
Solar Wind Speed at 27/1645 UTC: 440.7 km/s, Density: 4.0 p/cm^3


Forecast:
 
activity level will be very low
Event probabilities: Class C: 15, Class M: 01, Class X: 01, Proton: 01
X-ray background flux (1.0-8.0 A): in the range A5.5 - A9.5
Radio Flux 10.7 cm: a fluctuation in the range 72-83

Martina Exnerova
RWC Prague, Astronomical Institute, Solar Dept., Ondrejov, Czech Republic
e-mail: sunwatch(at)asu.cas.cz