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


Issued: 2017 January 3 20:15 UTC


Analysis from January 02/1700 UTC to January 03/2000 UTC:

Sunspot Regions on the Disk 03/1953 UTC (SDO Continuum): 1
The Largest Event: no X-ray events
X-ray background flux (1.0-8.0 A) January 2: A5.7
Radio Flux 10.7 cm at 03/1700 UTC (Penticton): 74
Solar Wind Speed at 03/1945 UTC: 436.6 km/s, Density: 5.9 p/cm^3


Forecast:
 
activity level will be very low
Event probabilities: Class C: 05, Class M: 01, Class X: 01, Proton: 01
X-ray background flux (1.0-8.0 A): in the range A5.0 - A7.5
Radio Flux 10.7 cm: a fluctuation in the range 70 - 78

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