Solar activity forecast for the period August 5 - 6, 2017


Issued: 2017 August 4 17:15 UTC


Analysis from August 03/1700 UTC to August 04/1700 UTC:

Sunspot Regions on the Disk 04/1629 UTC (SDO Continuum): 1
The Largest Event: B2.3 from Region 2670 at 03/1823 UTC
X-ray background flux (1.0-8.0 A) August 3: A6.1
Radio Flux 10.7 cm at 03/2300 UTC (Penticton): 75
Solar Wind Speed at 04/1645 UTC: 676.7 km/s, Density: 2.6 p/cm^3


Forecast:
 
activity level will be very low to 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 A4.5 - B1.5
Radio Flux 10.7 cm: a fluctuation in the range 70 - 81

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