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


Issued: 2017 June 16 17:15 UTC


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

Sunspot Regions on the Disk 16/1629 UTC (SDO Continuum): 2
The Largest Event: B2.9 from Region 2663 at 15/1700 UTC
X-ray background flux (1.0-8.0 A) June 15: A7.0
Radio Flux 10.7 cm at 15/2300 UTC (Penticton): 77
Solar Wind Speed at 16/1645 UTC: 524.8 km/s, Density: 7.7 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 A5.5 - A9.5
Radio Flux 10.7 cm: a fluctuation in the range 70 - 84

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