Lunar core detection using two surface magnetometers at very low frequency

A method is described which allows the analysis of the dipole component of the lunar induction using only measurements of two surface magnetometers. This is possible because the very low frequency of the relevant signal components limits the lunar response to the dipole partial wave. Because only surface magnetometers are necessary the simultaneous measurements made by the Apollo 15 and 16 surface modules can be used. Thus, additional information concerning the lunar transfer function can be applied to the determination of the existence and size of a metallic lunar core.