Fig. 12
From: Software-defined radio-based HF doppler receiving system
The Pc5 event associated with the SC on 16 September 2020 at 10:58 UT. a Ground magnetometer data (magnetic X field) obtained at Kakioka (KAK: 1Â s sampling) in Japan, Kourou (KOU: 1Â min) in French Guiana, Huancayo (HUA: 1Â min) in Peru and eastward equatorial electrojet calculated by subtracting magnetic X field at KOU from that at HUA (from top to bottom). b Doppler frequency data obtained by the analog and digital receivers at Awaji. At 11 UT, KAK and AWJ were located at 20 MLT, while KOU and HUA were at 07 MLT and 06 MLT, respectively