Solar activity forecast for the period February 27 - 28, 2017


Issued: 2017 February 26 17:30 UTC


Analysis from February 25/1700 UTC to February 26/1715 UTC:

Sunspot Regions on the Disk 26/1641 UTC (SDO Continuum): 3
The Largest Event: no X-ray event
X-ray background flux (1.0-8.0 A) February 25: A8.4
Radio Flux 10.7 cm at 25/2300 UTC (Penticton): 79
Solar Wind Speed at 26/1700 UTC: 395.2 km/s, Density: 3.8 p/cm^3


Forecast:
 
activity level will be very low to low
Event probabilities: Class C: 15, Class M: 01, Class X: 01, Proton: 01
X-ray background flux (1.0-8.0 A): in the range A7.5 - A9.5
Radio Flux 10.7 cm: a fluctuation in the range 75 - 83

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