Solar activity forecast for the period February 16 - 17, 2017


Issued: 2017 February 15 19:30 UTC


Analysis from February 14/1700 UTC to February 15/1915 UTC:

Sunspot Regions on the Disk 15/1902 UTC (SDO Continuum): 2
The Largest Event: B2.3 at 15/1243 UTC
X-ray background flux (1.0-8.0 A) February 14: A6.2
Radio Flux 10.7 cm at 14/2300 UTC (Penticton): 74
Solar Wind Speed at 15/1800 UTC: 305.6 km/s, Density: 5.6 p/cm^3


Forecast:
 
activity level will be very low to low
Event probabilities: Class C: 15, Class M: 01, Class X: 01, Proton: 01
X-ray background flux (1.0-8.0 A): in the range A5.0 - A8.0
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