Solar activity forecast for the period October 11 - 12, 2017


Issued: 2017 October 10 17:15 UTC


Analysis from October 09/1700 UTC to October 10/1700 UTC:

Sunspot Regions on the Disk 10/1623 UTC (SDO Continuum): 0
The Largest Event: no X-ray event
X-ray background flux (1.0-8.0 A) October 9: A7.7 (inaccurate data)
Radio Flux 10.7 cm at 09/2300 UTC (Penticton): 73
Solar Wind Speed at 10/1645 UTC: 309.9 km/s, Density: 5.7 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 A4.0 - A8.0
Radio Flux 10.7 cm: a fluctuation in the range 68-78

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