Solar activity forecast for the period July 23 - 24, 2017


Issued: 2017 July 22 17:15 UTC


Analysis from July 21/1700 UTC to July 22/1700 UTC:

Sunspot Regions on the Disk 22/1629 UTC (SDO Continuum): 0
The Largest Event: no X-ray event
X-ray background flux (1.0-8.0 A) July 21: A4.8
Radio Flux 10.7 cm at 21/2300 UTC (Penticton): 69
Solar Wind Speed at 22/1645 UTC: 587.8 km/s, Density: 2.5 p/cm^3


Forecast:
 
activity level will be very low
Event probabilities: Class C: 01, Class M: 01, Class X: 01, Proton: 01
X-ray background flux (1.0-8.0 A): in the range A3.0 - A8.0
Radio Flux 10.7 cm: a fluctuation in the range 66 - 75

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