Solar activity forecast for the period August 29 - 30, 2017


Issued: 2017 August 28 17:15 UTC


Analysis from August 27/1700 UTC to August 28/1700 UTC:

Sunspot Regions on the Disk 28/1623 UTC (SDO Continuum): 2
The Largest Event: B9.4 from Region 2672 at 28/1540 UTC
X-ray background flux (1.0-8.0 A) August 27: B1.1
Radio Flux 10.7 cm at 27/2300 UTC (Penticton): 78
Solar Wind Speed at 28/1645 UTC: 264.4 km/s, Density: 0.4 p/cm^3


Forecast:
 
activity level will be low 
Event probabilities: Class C: 40, Class M: 05, Class X: 01, Proton: 01
X-ray background flux (1.0-8.0 A): in the range A9.5 - B4.5
Radio Flux 10.7 cm: a fluctuation in the range 70 - 86

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