Issued: 2026 June 15 17:00 UTC


Analysis from June 14/1700 UTC to June 15/1700 UTC:

Sunspot Regions on the Disk 15/1623 UTC (SDO Continuum): 6
The Largest Event: C1.7 from region 4464 at 15/0214 UT
X-ray background flux (1.0-8.0 A) June 14: B4.9
Radio Flux 10.7 cm at 14/2000 UTC (Penticton): 128
Solar Wind Speed at 15/1645 UTC: 433.2 km/s, density : 2.6 p/cm^3


Forecast:

Activity level will be: low - explanation
Event probabilities: Class C: 80%, Class M: 20%, Class X: 05%, Proton: 05%
X-ray background flux (1.0-8.0 A): in the range B6.1 - B6.8
Radio Flux 10.7 cm: a fluctuation in the range 127-135

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