Daily forecast

Data type:
JSON, Legacy format
Forecast issued date:
Issued: 2021 January 21 17:00 UTC


Analysis from January 20/1700 UTC to January 21/1700 UTC:

Sunspot Regions on the Disk 21/1623 UTC (SDO Continuum): 2
The Largest Event: B5.4 from region 2798 at 21/0959 UT
X-ray background flux (1.0-8.0 A) January 20: A5.2
Radio Flux 10.7 cm at 20/2300 UTC (Penticton): 79
Solar Wind Speed at 21/1645 UTC: 288.8 km/s, density : 4.1 p/cm^3


Forecast:

Activity level will be: very low to low - explanation
Event probabilities: Class C: 20%, Class M: 01%, Class X: 01%, Proton: 01%
X-ray background flux (1.0-8.0 A): in the range A4.5 - A6.5
Radio Flux 10.7 cm: a fluctuation in the range 76-80

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