Solar activity forecast for the period June 5 - 6, 2017


Issued: 2017 June 4 17:15 UTC


Analysis from June 03/1700 UTC to June 04/1700 UTC:

Sunspot Regions on the Disk 04/1623 UTC (SDO Continuum): 1
The Largest Event: C2.5 from Region 2661 at 03/1934 UTC
X-ray background flux (1.0-8.0 A) June 3: A8.8
Radio Flux 10.7 cm at 03/2300 UTC (Penticton): 77
Solar Wind Speed at 04/1645 UTC: 402.5 km/s, Density: 4.3 p/cm^3


Forecast:
 
activity level will be low
Event probabilities: Class C: 50, Class M: 10, Class X: 01, Proton: 01
X-ray background flux (1.0-8.0 A): in the range A7.0 - B1.0
Radio Flux 10.7 cm: a fluctuation in the range 70 - 84

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