Solar activity forecast for the period December 12 - December 13, 2018

Issued: 2018 December 11 17:45 UTC


Analysis from December 10/1700 UTC to December 11/1745 UTC:

Sunspot Regions on the Disk 11/1623 UTC (SDO Continuum): 1
The Largest Event: no X-ray event
X-ray background flux (1.0-8.0 A) December 10: A2.4
Radio Flux 10.7 cm at 10/2300 UTC (Penticton): 70
Solar Wind Speed at 11/1730 UTC: 510.2 km/s, Density: 1.4 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 A1.2 - A2.8
Radio Flux 10.7 cm: a fluctuation in the range 68-71

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