Solar activity forecast for the period February 9 - 10, 2017


Issued: 2017 February 8 17:15 UTC


Analysis from February 07/1700 UTC to February 08/1700 UTC:

Sunspot Regions on the Disk 08/1640 UTC (SDO Continuum): 1
The Largest Event: no X-ray event
X-ray background flux (1.0-8.0 A) February 7: A6.3
Radio Flux 10.7 cm at 07/2300 UTC (Penticton): 72
Solar Wind Speed at 08/1645 UTC: 467.8 km/s, Density: 1.2 p/cm^3


Forecast:
 
activity level will be very low
Event probabilities: Class C: 10, Class M: 01, Class X: 01, Proton: 01
X-ray background flux (1.0-8.0 A): in the range A5.5 - A8.5
Radio Flux 10.7 cm: a fluctuation in the range 68 - 76

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