Solar activity forecast for the period October 2 - 3, 2017


Issued: 2017 October 1 17:15 UTC


Analysis from September 30/1700 UTC to October 01/1700 UTC:

Sunspot Regions on the Disk 01/1623 UTC (SDO Continuum): 3
The Largest Event: B3.5 from Region 2682 at 30/1711 UTC
X-ray background flux (1.0-8.0 A) September 30: invalid data
Radio Flux 10.7 cm at 30/2300 UTC (Penticton): 88
Solar Wind Speed at 01/1645 UTC: 449.7 km/s, Density: 1.9 p/cm^3


Forecast:
 
activity level will be very low to low
Event probabilities: Class C: 25, Class M: 01, Class X: 01, Proton: 01
X-ray background flux (1.0-8.0 A): in the range A8.5 - B4.5
Radio Flux 10.7 cm: a fluctuation in the range 80-96

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