Solar activity forecast for the period February 24 - 25, 2017


Issued: 2017 February 23 17:30 UTC


Analysis from February 22/1700 UTC to February 23/1715 UTC:

Sunspot Regions on the Disk 23/1641 UTC (SDO Continuum): 1
The Largest Event: B4.9 at 22/2113 UTC
X-ray background flux (1.0-8.0 A) February 22: B1.1
Radio Flux 10.7 cm at 22/2300 UTC (Penticton): 84
Solar Wind Speed at 23/1700 UTC: 525.4 km/s, Density: 5.3 p/cm^3


Forecast:
 
activity level will be very low to low
Event probabilities: Class C: 25, 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 - 88

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