Issued: 2025 December 23 17:00 UTC


Analysis from December 22/1700 UTC to December 23/1700 UTC:

Sunspot Regions on the Disk 23/0815 UTC (SDO Continuum): 8
The Largest Event: C8.6 from region 4317 at 22/2231 UT
X-ray background flux (1.0-8.0 A) December 22: B7.3
Radio Flux 10.7 cm at 22/2300 UTC (Penticton): 134
Solar Wind Speed at 23/1644 UTC: 693.7 km/s, density : 1.3 p/cm^3


Forecast:

Activity level will be: low to moderate - explanation
Event probabilities: Class C: 90%, Class M: 35%, Class X: 10%, Proton: 05%
X-ray background flux (1.0-8.0 A): in the range B6.5-B7.5
Radio Flux 10.7 cm: a fluctuation in the range 122-146

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