Solar activity forecast for the period August 28 - 29, 2017


Issued: 2017 August 27 17:15 UTC


Analysis from August 26/1700 UTC to August 27/1700 UTC:

Sunspot Regions on the Disk 27/1623 UTC (SDO Continuum): 2
The Largest Event: C6.3 from Region 2671 at 27/1516 UTC
X-ray background flux (1.0-8.0 A) August 26: B1.1
Radio Flux 10.7 cm at 26/2300 UTC (Penticton): 79
Solar Wind Speed at 27/1650 UTC: 343.6 km/s, Density: 2.6 p/cm^3


Forecast:
 
activity level will be low 
Event probabilities: Class C: 70, Class M: 15, Class X: 01, Proton: 01
X-ray background flux (1.0-8.0 A): in the range A8.5 - B3.5
Radio Flux 10.7 cm: a fluctuation in the range 71 - 86

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