Issued: 2023 September 25 17:00 UTC


Analysis from September 24/1700 UTC to September 25/1700 UTC:

Sunspot Regions on the Disk 25/1623 UTC (SDO Continuum): 11
The Largest Event: C9.9 from region S21E17 at 25/0813 UT
X-ray background flux (1.0-8.0 A) September 24: C1.4
Radio Flux 10.7 cm at 24/2300 UTC (Penticton): 172
Solar Wind Speed at 25/1645 UTC: 448.0 km/s, density : 0.1 p/cm^3


Forecast:

Activity level will be: moderate - explanation
Event probabilities: Class C: 99%, Class M: 60%, Class X: 15%, Proton: 15%
X-ray background flux (1.0-8.0 A): in the range C1.2 - C1.8
Radio Flux 10.7 cm: a fluctuation in the range 168-175

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