Solar activity forecast for the period June 10 - June 11, 2023

Issued: 2023 June 09 17:00 UTC


Analysis from June 08/1700 UTC to June 09/1700 UTC:

Sunspot Regions on the Disk 09/1623 UTC (SDO Continuum): 10
The Largest Event: C4.5 from Region 3327 at 09/1440 UT
X-ray background flux (1.0-8.0 A) June 08: C1.2
Radio Flux 10.7 cm at 08/2300 UTC (Penticton): 169
Solar Wind Speed at 09/1645 UTC: 286.9 km/s, Density: 5.8 p/cm^3


Forecast:

activity level will be low to moderate
Event probabilities: Class C: 99, Class M: 30, Class X: 05, Proton: 01
X-ray background flux (1.0-8.0 A): in the range C1.1 - C2.2
Radio Flux 10.7 cm: a fluctuation in the range 168-172

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