Issued: 2025 January 20 17:00 UTC


Analysis from January 19/1700 UTC to January 20/1700 UTC:

Sunspot Regions on the Disk 20/1206 UTC (SDO Continuum): 10
The Largest Event: C8.2 from region 3959 at 19/1708 UT
X-ray background flux (1.0-8.0 A) January 19: C1.6
Radio Flux 10.7 cm at 19/2000 UTC (Penticton): 234
Solar Wind Speed at 20/1645 UTC: 0.0 km/s, density : 0.0 p/cm^3


Forecast:

Activity level will be: low to moderate - explanation
Event probabilities: Class C: 99%, Class M: 70%, Class X: 25%, Proton: 15%
X-ray background flux (1.0-8.0 A): in the range C1.5-C2.0
Radio Flux 10.7 cm: a fluctuation in the range 205-230

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