Solar activity forecast for the period May 16 - 17, 2017


Issued: 2017 May 15 17:15 UTC


Analysis from May 14/1700 UTC to May 15/1700 UTC:

Sunspot Regions on the Disk 15/1623 UTC (SDO Continuum): 1
The Largest Event: no X-ray event
X-ray background flux (1.0-8.0 A) May 14: A4.1
Radio Flux 10.7 cm at 14/2300 UTC (Penticton): 71
Solar Wind Speed at 15/1645 UTC: 519.3 km/s, Density: 3.5 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 - A6.5
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