Solar activity forecast for the period June 27 - 28, 2017


Issued: 2017 June 26 17:15 UTC


Analysis from June 25/1700 UTC to June 26/1700 UTC:

Sunspot Regions on the Disk 26/1623 UTC (SDO Continuum): 1
The Largest Event: B1.3 from Region 2664 at 26/0728 UTC
X-ray background flux (1.0-8.0 A) June 25: A4.6
Radio Flux 10.7 cm at 25/2300 UTC (Penticton): 74
Solar Wind Speed at 26/1645 UTC: 544.6 km/s, Density: 1.7 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 A4.0 - A6.5
Radio Flux 10.7 cm: a fluctuation in the range 67 - 81

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