Solar activity forecast for the period February 4 - 5, 2017


Issued: 2017 February 3 17:15 UTC


Analysis from February 02/1700 UTC to February 03/1700 UTC:

Sunspot Regions on the Disk 03/1623 UTC (SDO Continuum): 3
The Largest Event: no X-ray event
X-ray background flux (1.0-8.0 A) February 2: A7.7
Radio Flux 10.7 cm at 02/2300 UTC (Penticton): 76
Solar Wind Speed at 03/1645 UTC: 575.7 km/s, Density: 0.1 p/cm^3


Forecast:
 
activity level will be very low to 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 A6.5 - A9.5
Radio Flux 10.7 cm: a fluctuation in the range 72 - 80

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