Fig. 1
From: Non-monochromatic whistler waves detected by Kaguya on the dayside surface of the moon
The dynamic spectra of the magnetic field components B
x
, B
y
, B
z
in SSE coordinates, and the magnitude ∣B∣ obtained by KAGUYA MAP-PACE on January 4, 2008. Overlaid are the magnetic field components and the magnitude. The magnetic field data sampled at 32 Hz were Fourier transformed every 1024 s. The bottom two panels show the latitude and the longitude of Kaguya in the mean Earth/polar axis (ME) coordinate system, and the x-component of the position in selenocentric solar ecliptic (SSE) coordinates together with the distance 
normalized by the lunar radius (red curve; YZsse > 1 indicates that the spacecraft was not shadowed by the moon). The orbit of Kaguya was nearly along the terminator on this day.