Solar activity forecast for the period February 1 - 2, 2017


Issued: 2017 January 31 17:15 UTC


Analysis from January 30/1700 UTC to January 31/1700 UTC:

Sunspot Regions on the Disk 31/1641 UTC (SDO Continuum): 4
The Largest Event: no X-ray event
X-ray background flux (1.0-8.0 A) January 30: A7.7
Radio Flux 10.7 cm at 30/2300 UTC (Penticton): 77
Solar Wind Speed at 31/1645 UTC: 740.4 km/s, Density: 1.3 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 A7.0 - A9.0
Radio Flux 10.7 cm: a fluctuation in the range 73 - 81

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