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

Issued: 2019 October 20 17:00 UTC


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

Sunspot Regions on the Disk 20/1541 UTC (SDO Continuum): 0
The Largest Event: no X-ray event
X-ray background flux (1.0-8.0 A) October 19: A6.5
Radio Flux 10.7 cm at 19/2300 UTC (Penticton): 65
Solar Wind Speed at 20/1645 UTC: 339.1 km/s, Density: 1 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 A6.0-A6.9
Radio Flux 10.7 cm: a fluctuation in the range 65-67

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