Solar activity forecast for the period October 10 - 11, 2017


Issued: 2017 October 9 17:15 UTC


Analysis from October 08/1700 UTC to October 09/1700 UTC:

Sunspot Regions on the Disk 09/1623 UTC (SDO Continuum): 0
The Largest Event: B1.4  from Region 2683 at 09/0324 UTC
X-ray background flux (1.0-8.0 A) October 8: A8.7 (inaccurate data)
Radio Flux 10.7 cm at 08/2300 UTC (Penticton): 75
Solar Wind Speed at 09/1645 UTC: 351.5 km/s, Density: 4.4 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 A6.5 - A9.5
Radio Flux 10.7 cm: a fluctuation in the range 70-82

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