Solar activity forecast for the period May 9 - 10, 2017


Issued: 2017 May 8 17:15 UTC


Analysis from May 07/1700 UTC to May 08/1700 UTC:

Sunspot Regions on the Disk 08/1623 UTC (SDO Continuum): 1
The Largest Event: no X-ray event
X-ray background flux (1.0-8.0 A) May 7: A3.6
Radio Flux 10.7 cm at 07/2300 UTC (Penticton): 71
Solar Wind Speed at 08/1615 UTC: 392.6 km/s, Density: 4.0 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 64 - 78

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