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


Issued: 2017 February 16 19:30 UTC


Analysis from February 15/1700 UTC to February 16/1915 UTC:

Sunspot Regions on the Disk 16/1902 UTC (SDO Continuum): 2
The Largest Event: B1.0 at 15/2051 UTC
X-ray background flux (1.0-8.0 A) February 15: A5.9
Radio Flux 10.7 cm at 15/2300 UTC (Penticton): 75
Solar Wind Speed at 16/1900 UTC: 416.9 km/s, Density: 8.0 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 A5.0 - A8.0
Radio Flux 10.7 cm: a fluctuation in the range 71 - 79

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