Initial measurements of the lunar induced magnetic dipole moment using lunar prospector magnetometer data

Lon L. Hood, David L. Mitchell, Robert P. Lin, Mario H. Acuna, Alan B. Binder

Research output: Contribution to journalArticlepeer-review

97 Scopus citations

Abstract

Twenty-one orbits of Lunar Prospector magnetometer data obtained during an extended passage of the Moon through a lobe of the geomagnetic tail in April 1998 are applied to estimate the residual lunar induced magnetic dipole moment. Editing and averaging of individual orbit segments yields a negative induced moment with amplitude -2.4 ± 1.6 × 1022 Gauss-cm3 per Gauss of applied field. Assuming that the induced field is caused entirely by electrical currents near the surface of a highly electrically conducting metallic core, the preferred core radius is 340±90 km. For an iron-rich composition, such a core would represent 1 to 3% of the lunar mass.

Original languageEnglish (US)
Article number1999GL900487
Pages (from-to)2327-2330
Number of pages4
JournalGeophysical Research Letters
Volume26
Issue number15
DOIs
StatePublished - Aug 1 1999

ASJC Scopus subject areas

  • Geophysics
  • Earth and Planetary Sciences(all)

Fingerprint

Dive into the research topics of 'Initial measurements of the lunar induced magnetic dipole moment using lunar prospector magnetometer data'. Together they form a unique fingerprint.

Cite this