Solar activity forecast for the period February 18 - 19, 2017


Issued: 2017 February 17 19:30 UTC


Analysis from February 16/1700 UTC to February 17/1915 UTC:

Sunspot Regions on the Disk 17/1852 UTC (SDO Continuum): 1
The Largest Event: B1.6 at 17/0932 UTC
X-ray background flux (1.0-8.0 A) February 16: A5.7
Radio Flux 10.7 cm at 16/2300 UTC (Penticton): 74
Solar Wind Speed at 17/1900 UTC: 501.5 km/s, Density: 3.7 p/cm^3


Forecast:
 
activity level will be very low 
Event probabilities: Class C: 10, Class M: 01, Class X: 01, Proton: 01
X-ray background flux (1.0-8.0 A): in the range A5.5 - A8.5
Radio Flux 10.7 cm: a fluctuation in the range 70 - 78

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