Solar activity forecast for the period May 28 - 29, 2017


Issued: 2017 May 27 17:15 UTC


Analysis from May 26/1700 UTC to May 27/1700 UTC:

Sunspot Regions on the Disk 27/1623 UTC (SDO Continuum): 1
The Largest Event: B3.1 at 27/1038 UTC
X-ray background flux (1.0-8.0 A) May 26: B1.0
Radio Flux 10.7 cm at 26/2300 UTC (Penticton): 80
Solar Wind Speed at 27/1645 UTC: 378.9 km/s, Density: 26.4 p/cm^3


Forecast:
 
activity level will be very low to low
Event probabilities: Class C: 40, Class M: 05, Class X: 01, Proton: 01
X-ray background flux (1.0-8.0 A): in the range A9.0 - B2.0
Radio Flux 10.7 cm: a fluctuation in the range 73 - 87

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