Solar activity forecast for the period May 10 - 11, 2017


Issued: 2017 May 9 17:15 UTC


Analysis from May 08/1700 UTC to May 09/1700 UTC:

Sunspot Regions on the Disk 09/1623 UTC (SDO Continuum): 0
The Largest Event: no X-ray event
X-ray background flux (1.0-8.0 A) May 8: A3.6
Radio Flux 10.7 cm at 08/2300 UTC (Penticton): 70
Solar Wind Speed at 09/1645 UTC: 375.8 km/s, Density: 6.2 p/cm^3


Forecast:
 
activity level will be very low
Event probabilities: Class C: 05, Class M: 01, Class X: 01, Proton: 01
X-ray background flux (1.0-8.0 A): in the range A3.0 - A7.0
Radio Flux 10.7 cm: a fluctuation in the range 63 - 77

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