Solar activity forecast for the period August 8 - 9, 2017


Issued: 2017 August 7 17:15 UTC


Analysis from August 06/1700 UTC to August 07/1700 UTC:

Sunspot Regions on the Disk 07/1623 UTC (SDO Continuum): 1
The Largest Event: no X-ray event
X-ray background flux (1.0-8.0 A) August 6: A5.3
Radio Flux 10.7 cm at 06/2300 UTC (Penticton): 73
Solar Wind Speed at 07/1645 UTC: 470.6 km/s, Density: 0.3 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 - A9.0
Radio Flux 10.7 cm: a fluctuation in the range 68 - 78

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