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


Issued: 2017 January 18 17:15 UTC


Analysis from January 17/1700 UTC to January 18/1715 UTC:

Sunspot Regions on the Disk 18/1629 UTC (SDO Continuum): 4
The Largest Event: no X-ray events
X-ray background flux (1.0-8.0 A) January 17: A7.0
Radio Flux 10.7 cm at 17/2300 UTC (Penticton): 79
Solar Wind Speed at 18/1700 UTC: 573.2 km/s, Density: 0.9 p/cm^3


Forecast:
 
activity level will be very low to low
Event probabilities: Class C: 10, Class M: 01, Class X: 01, Proton: 01
X-ray background flux (1.0-8.0 A): in the range A6.0 - A9.5
Radio Flux 10.7 cm: a fluctuation in the range 76 - 82

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