Solar activity forecast for the period October 12 - 13, 2017


Issued: 2017 October 11 17:15 UTC


Analysis from October 10/1700 UTC to October 11/1700 UTC:

Sunspot Regions on the Disk 11/1600 UTC (SDO Continuum): 0
The Largest Event: no X-ray event
X-ray background flux (1.0-8.0 A) October 10: A2.1 (inaccurate data)
Radio Flux 10.7 cm at 10/2300 UTC (Penticton): 71
Solar Wind Speed at 11/1650 UTC: 472.1 km/s, Density: 6.6 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 A2.0 - A6.0
Radio Flux 10.7 cm: a fluctuation in the range 67-74

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