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


Issued: 2017 July 26 17:15 UTC


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

Sunspot Regions on the Disk 26/1623 UTC (SDO Continuum): 0
The Largest Event: Event: no X-ray event
X-ray background flux (1.0-8.0 A) July 25: A4.5
Radio Flux 10.7 cm at 25/2300 UTC (Penticton): 70
Solar Wind Speed at 26/1645 UTC: 583.6 km/s, Density: 2.8 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 - A7.5
Radio Flux 10.7 cm: a fluctuation in the range 66 - 77

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