Fig. 15From: Magnetic Search Coil (MSC) of Plasma Wave Experiment (PWE) aboard the Arase (ERG) satelliteFrequency–time diagram of |B| during the extension operation for the MAST on January 17, 2017 (\(0\,{\hbox {dBnT/Hz}}^{1/2}=1 \,{\hbox {nT/Hz}}^{1/2}\)). Partial (0.3 m) extension was finished at 21:15 UT, and full (5 m) extension was finished at 21:45 UT. After full extension, the magnetic noise levels reached the output noise level of the MSC-PABack to article page