Solar activity forecast for the period October 9 - 10, 2017


Issued: 2017 October 8 17:15 UTC


Analysis from October 07/1700 UTC to October 08/1700 UTC:

Sunspot Regions on the Disk 08/1623 UTC (SDO Continuum): 0
The Largest Event: B5.0 at 08/0647 UTC
X-ray background flux (1.0-8.0 A) October 7: A7.5 (inaccurate data)
Radio Flux 10.7 cm at 07/2300 UTC (Penticton): 80
Solar Wind Speed at 08/1600 UTC: 413.3 km/s, Density: 2.7 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 A7.5 - B1.5
Radio Flux 10.7 cm: a fluctuation in the range 75-85

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