Solar activity forecast for the period October 6 - 7, 2017


Issued: 2017 October 5 18:15 UTC


Analysis from October 04/1700 UTC to October 05/1800 UTC:

Sunspot Regions on the Disk 05/1717 UTC (SDO Continuum): 2
The Largest Event: C1.0 at 05/1341 UTC
X-ray background flux (1.0-8.0 A) October 4: A5.8 (inaccurate data)
Radio Flux 10.7 cm at 04/2300 UTC (Penticton): 86
Solar Wind Speed at 05/1745 UTC: 403.2 km/s, Density: 6.7 p/cm^3


Forecast:
 
activity level will be very low to low
Event probabilities: Class C: 20, Class M: 01, Class X: 01, Proton: 01
X-ray background flux (1.0-8.0 A): in the range A8.5 - B1.5
Radio Flux 10.7 cm: a fluctuation in the range 80-90

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