Solar activity forecast for the period January 23 - 24, 2017


Issued: 2017 January 22 17:15 UTC


Analysis from January 21/1700 UTC to January 22/1700 UTC:

Sunspot Regions on the Disk 22/1641 UTC (SDO Continuum): 4
The Largest Event: B2.4 at 22/1227 UTC
X-ray background flux (1.0-8.0 A) January 21: B1.4
Radio Flux 10.7 cm at 21/2300 UTC (Penticton): 87
Solar Wind Speed at 22/1645 UTC: 497.6 km/s, Density: 1.0 p/cm^3


Forecast:
 
activity level will be low
Event probabilities: Class C: 50, Class M: 10, Class X: 01, Proton: 01
X-ray background flux (1.0-8.0 A): in the range A9.5 - B2.5
Radio Flux 10.7 cm: a fluctuation in the range 82 - 90

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