Solar activity forecast for the period October 17 - 18, 2017


Issued: 2017 October 16 17:15 UTC


Analysis from October 15/1700 UTC to October 16/1700 UTC:

Sunspot Regions on the Disk 16/1623 UTC (SDO Continuum): 1
The Largest Event: no X-ray event
X-ray background flux (1.0-8.0 A) October 15: A2.5
Radio Flux 10.7 cm at 15/2300 UTC (Penticton): 71
Solar Wind Speed at 16/1645 UTC: 542.3 km/s, Density: 1.7 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 A2.5 - A5.5
Radio Flux 10.7 cm: a fluctuation in the range 69-75

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