Issued: 2026 October 05 17:00 UTC


Analysis from October 04/1700 UTC to October 05/1700 UTC:

Sunspot Regions on the Disk 05/1515 UTC (SDO Continuum): 6
The Largest Event: C1.5 from region 4547 at 05/1148 UT
X-ray background flux (1.0-8.0 A) October 04: B3.5
Radio Flux 10.7 cm at 04/2300 UTC (Penticton): 92
Solar Wind Speed at 05/1645 UTC: 584.4 km/s, density : 0.2 p/cm^3


Forecast:

Activity level will be: very low to low - explanation
Event probabilities: Class C: 55%, Class M: 10%, Class X: 01%, Proton: 01%
X-ray background flux (1.0-8.0 A): in the range B2.1-B5.6
Radio Flux 10.7 cm: a fluctuation in the range 80-104

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