Solar activity forecast for the period September 2 - 3, 2017


Issued: 2017 September 1 17:15 UTC


Analysis from August 31/1700 UTC to September 1/1700 UTC:

Sunspot Regions on the Disk 01/1623 UTC (SDO Continuum): 4
The Largest Event: C2.0 from Region 2674 at 01/1537 UTC
X-ray background flux (1.0-8.0 A) August 31: B1.8
Radio Flux 10.7 cm at 31/2300 UTC (Penticton): 92
Solar Wind Speed at 01/1645 UTC: 676.0 km/s, Density: 3.0 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 85 - 99

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