Solar activity forecast for the period January 1 - 2, 2017


Issued: 2016 December 31 15:00 UTC


Analysis from December 30/1700 UTC to December 31/1445 UTC:

Sunspot Regions on the Disk 31/1423 UTC (SDO Continuum): 1
The Largest Event: B2.4 at 31/0350 UTC
X-ray background flux (1.0-8.0 A) December 30: A7.1
Radio Flux 10.7 cm at 30/2300 UTC (Penticton): 73
Solar Wind Speed at 31/1430 UTC: 445.5 km/s, Density: 3.3 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 - A8.5
Radio Flux 10.7 cm: a fluctuation in the range 68 - 78

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