SID Events Monitor
With the loop antenna described here : Loop Antenna for Very Low Frequency and the receiver described here : VLF Receiver for SID Monitoring we do a continuous monitoring of SID events.
Link about Solar Activity : Solar Flares
X1.59 Flare – 03/07/2021
M1.1 Flare – 29/05/2020
M4.4 Flare – 29/11/2020