Figure 3
From: ELF magnetic fluctuations detected by Kaguya in deepest lunar wake associated with type-II protons
Examples of waveforms of magnetic field variations. During (a) the magnetically fluctuating period from 10:11:00 to 10:11:04 and (b) a quiet period from 10:00:00 to 10:00:04, both on 24 September 2008, presented in a coordinate system fixed to the satellite. An artificial noise pattern that repeated every 1 s was removed from the original signals in advance. The artificial noise pattern was derived by a box-car method applied to signals of each component for an extremely quiet period, 10:00 to 10:05.