Solar activity forecast for the period August 3 - 4, 2017


Issued: 2017 August 2 17:15 UTC


Analysis from August 01/1700 UTC to August 02/1700 UTC:

Sunspot Regions on the Disk 02/1629 UTC (SDO Continuum): 1
The Largest Event: B2.8 at 01/1959 UTC
X-ray background flux (1.0-8.0 A) August 1: A7.4
Radio Flux 10.7 cm at 01/2300 UTC (Penticton): 74
Solar Wind Speed at 02/1645 UTC: 380.9 km/s, Density: 0.4 p/cm^3


Forecast:
 
activity level will be low
Event probabilities: Class C: 60, Class M: 20, Class X: 01, Proton: 01
X-ray background flux (1.0-8.0 A): in the range A5.5 - B1.5
Radio Flux 10.7 cm: a fluctuation in the range 69 - 79

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