Solar activity forecast for the period September 29 - September 30, 2020

Issued: 2020 September 28 17:00 UTC


Analysis from September 27/1700 UTC to September 28/1700 UTC:

Sunspot Regions on the Disk 28/1629 UTC (SDO Continuum): 1
The Largest Event: no X-ray event
X-ray background flux (1.0-8.0 A) September 27: A5.0
Radio Flux 10.7 cm at 27/2300 UTC (Penticton): 72
Solar Wind Speed at 28/1645 UTC: 607.5 km/s, Density: 0.9 p/cm^3


Forecast:

activity level will be very low
Event probabilities: Class C: 05, Class M: 01, Class X: 01, Proton: 01
X-ray background flux (1.0-8.0 A): in the range A4.0-A5.0
Radio Flux 10.7 cm: a fluctuation in the range 72-73

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