Solar activity forecast for the period September 1 - 2, 2017


Issued: 2017 August 31 17:15 UTC


Analysis from August 30/1700 UTC to August 31/1700 UTC:

Sunspot Regions on the Disk 31/1623 UTC (SDO Continuum): 4
The Largest Event: C5.2 from Region 2674 at 30/1845 UTC
X-ray background flux (1.0-8.0 A) August 30: B1.9
Radio Flux 10.7 cm at 30/2300 UTC (Penticton): 88
Solar Wind Speed at 31/1645 UTC: 595.2 km/s, Density: 2.6 p/cm^3


Forecast:
 
activity level will be low  
Event probabilities: Class C: 60, Class M: 10, Class X: 01, Proton: 01
X-ray background flux (1.0-8.0 A): in the range B1.0 - B5.5
Radio Flux 10.7 cm: a fluctuation in the range 78 - 94

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