Solar activity forecast for the period December 10 - December 11, 2018

Issued: 2018 December 09 17:00 UTC


Analysis from December 08/1700 UTC to December 09/1700 UTC:

Sunspot Regions on the Disk 09/1623 UTC (SDO Continuum): 0
The Largest Event: B2.4 from Region 2729 at 09/0710 UT
X-ray background flux (1.0-8.0 A) December 08: A2.3
Radio Flux 10.7 cm at 08/2300 UTC (Penticton): 71
Solar Wind Speed at 09/1645 UTC: 599.4 km/s, Density: 2.4 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 A2.5 - A4.0
Radio Flux 10.7 cm: a fluctuation in the range 68-72

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