Solar activity forecast for the period May 6 - 7, 2017


Issued: 2017 May 5 17:15 UTC


Analysis from May 04/1700 UTC to May 05/1700 UTC:

Sunspot Regions on the Disk 05/1623 UTC (SDO Continuum): 2
The Largest Event: B4.7 at 05/0437 UTC
X-ray background flux (1.0-8.0 A) May 4: A5.8
Radio Flux 10.7 cm at 04/2300 UTC (Penticton): 74
Solar Wind Speed at 05/1645 UTC: 394.1 km/s, Density: 2.7 p/cm^3


Forecast:
 
activity level will be very low to low
Event probabilities: Class C: 30, Class M: 01, Class X: 01, Proton: 01
X-ray background flux (1.0-8.0 A): in the range A5.5 - A9.0
Radio Flux 10.7 cm: a fluctuation in the range 67 - 81

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