Solar activity forecast for the period December 08 - December 09, 2023

Issued: 2023 December 07 17:00 UTC


Analysis from December 06/1700 UTC to December 07/1700 UTC:

Sunspot Regions on the Disk 07/1511 UTC (SDO Continuum): 8
The Largest Event: M2.3 from Region 3513 at 06/2144 UT
X-ray background flux (1.0-8.0 A) December 06: B9.8
Radio Flux 10.7 cm at 06/2300 UTC (Penticton): 133
Solar Wind Speed at 07/1645 UTC: 484 km/s, Density: 1.8 p/cm^3


Forecast:

activity level will be moderate
Event probabilities: Class C: 99, Class M: 55, Class X: 20, Proton: 15
X-ray background flux (1.0-8.0 A): in the range B9.8-C1.3
Radio Flux 10.7 cm: a fluctuation in the range 126-145

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