Solar activity forecast for the period June 11 - 12, 2017


Issued: 2017 June 10 17:15 UTC


Analysis from June 09/1700 UTC to June 10/1700 UTC:

Sunspot Regions on the Disk 10/1623 UTC (SDO Continuum): 0
The Largest Event: B1.7 at 10/1023 UTC
X-ray background flux (1.0-8.0 A) June 9: A5.8
Radio Flux 10.7 cm at 09/2300 UTC (Penticton): 73
Solar Wind Speed at 10/1645 UTC: 273.8 km/s, Density: 3.1 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 A4.5 - A6.5
Radio Flux 10.7 cm: a fluctuation in the range 66 - 80

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