Solar activity forecast for the period January 18 - 19, 2017


Issued: 2017 January 17 18:30 UTC


Analysis from January 16/1700 UTC to January 17/1815 UTC:

Sunspot Regions on the Disk 17/1753 UTC (SDO Continuum): 3
The Largest Event: no X-ray events
X-ray background flux (1.0-8.0 A) January 16: A6.9
Radio Flux 10.7 cm at 16/2300 UTC (Penticton): 78
Solar Wind Speed at 17/1800 UTC: 293.9 km/s, Density: 7.8 p/cm^3


Forecast:
 
activity level will be very low to low
Event probabilities: Class C: 20, Class M: 01, Class X: 01, Proton: 01
X-ray background flux (1.0-8.0 A): in the range A6.0 - A8.5
Radio Flux 10.7 cm: a fluctuation in the range 75 - 81

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