Solar activity forecast for the period January 21 - 22, 2018


Issued: 2018 January 20 17:15 UTC
                         
                         
Analysis from January 19/1700 UTC to January 20/1700 UTC: 

Sunspot Regions on the Disk 20/1623 UTC (SDO Continuum): 0
The Largest Event: B1.7 from Region 2696 at 20/0455 UTC
X-ray background flux (1.0-8.0 A) January 19: A3.2
Radio Flux 10.7 cm at 19/2300 UTC (Penticton): 71
Solar Wind Speed at 20/1645 UTC: 383.3 km/s, Density: 1.1 p/cm^3


Forecast:
 
activity level will be very low 
Event probabilities: Class C: 01, Class M: 01, Class X: 01, Proton: 01
X-ray background flux (1.0-8.0 A): in the range A2.5 - A4.5
Radio Flux 10.7 cm: a fluctuation in the range 68-76

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