Solar activity forecast for the period August 21 - August 22, 2019

Issued: 2019 August 20 17:00 UTC


Analysis from August 19/1700 UTC to August 20/1700 UTC:

Sunspot Regions on the Disk 20/1629 UTC (SDO Continuum): 0
The Largest Event: no X-ray event
X-ray background flux (1.0-8.0 A) August 20: A6.5
Radio Flux 10.7 cm at 20/2300 UTC (Penticton): 68
Solar Wind Speed at 20/1645 UTC: 406.4 km/s, Density: 2.7 p/cm^3


Forecast:

activity level will be very low
Event probabilities: Class C: 01, Class M: 01, Class X: 01, Proton: 01
X-ray background flux (1.0-8.0 A): in the range A5.8 - A6.6
Radio Flux 10.7 cm: a fluctuation in the range 67 - 68

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