Solar activity forecast for the period August 2 - 3, 2017


Issued: 2017 August 1 17:15 UTC


Analysis from July 31/1700 UTC to August 01/1700 UTC:

Sunspot Regions on the Disk 01/1641 UTC (SDO Continuum): 1
The Largest Event: C1.4 at 01/0747 UTC
X-ray background flux (1.0-8.0 A) June 31: A7.4
Radio Flux 10.7 cm at 31/2300 UTC (Penticton): 73
Solar Wind Speed at 01/1645 UTC: 457.4 km/s, Density: 2.0 p/cm^3


Forecast:
 
activity level will be very low to 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