Solar activity forecast for the period January 12 - 13, 2017


Issued: 2017 January 11 17:15 UTC


Analysis from January 10/1700 UTC to January 11/1700 UTC:

Sunspot Regions on the Disk 11/1629 UTC (SDO Continuum): 0
The Largest Event: B5.4 at 10/1808 UTC
X-ray background flux (1.0-8.0 A) January 10: A6.2
Radio Flux 10.7 cm at 10/2300 UTC (Penticton): 72
Solar Wind Speed at 11/1645 UTC: 452.9 km/s, Density: 4.0 p/cm^3


Forecast:
 
activity level will be very low
Event probabilities: Class C: 05, Class M: 01, Class X: 01, Proton: 01
X-ray background flux (1.0-8.0 A): in the range A5.5 - A9.5
Radio Flux 10.7 cm: a fluctuation in the range 69 - 75

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