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


Issued: 2017 August 26 17:15 UTC


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

Sunspot Regions on the Disk 26/1623 UTC (SDO Continuum): 2
The Largest Event: B3.7 from Region 2671 at 26/0215 UTC
X-ray background flux (1.0-8.0 A) August 25: B1.2
Radio Flux 10.7 cm at 25/2300 UTC (Penticton): 81
Solar Wind Speed at 26/1645 UTC: 364.8 km/s, Density: 2.2 p/cm^3


Forecast:
 
activity level will be low 
Event probabilities: Class C: 70, Class M: 10, Class X: 01, Proton: 01
X-ray background flux (1.0-8.0 A): in the range A9.0 - B4.5
Radio Flux 10.7 cm: a fluctuation in the range 72 - 88

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