Solar activity forecast for the period March 19 - 20, 2017


Issued: 2017 March 18 18:30 UTC


Analysis from March 17/1700 UTC to March 18/1815 UTC:

Sunspot Regions on the Disk 18/1741 UTC (SDO Continuum): 0
The Largest Event: no X-ray event
X-ray background flux (1.0-8.0 A) March 17: A0.0 (invalid data?)
Radio Flux 10.7 cm at 17/2300 UTC (Penticton): 70
Solar Wind Speed at 18/1755 UTC: 310.2 km/s, Density: 2.8 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 - A8.0
Radio Flux 10.7 cm: a fluctuation in the range 66 - 74

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