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


Issued: 2017 October 4 22:15 UTC


Analysis from October 03/1700 UTC to October 04/2200 UTC:

Sunspot Regions on the Disk 04/2153 UTC (SDO Continuum): 2
The Largest Event: no X-ray event
X-ray background flux (1.0-8.0 A) October 3: A5.5 (inaccurate data)
Radio Flux 10.7 cm at 04/2000 UTC (Penticton): 87
Solar Wind Speed at 04/2145 UTC: 362.0 km/s, Density: 6.2 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 - B2.0
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