David Strangway Peter Annan Richard G. Baker Lawrence Bannister Raymond E. Brown William Cooper Dean Cubley Joseph deBettencourt Anthony W. England John Groener Jin-Au Kong Gerald LaTorraca James Meyer Ved Nanda David Redman James Rossiter Leung Tsang Joseph Urner Raymond Watts Gene Simmons 1973 The surface electrical properties (SEP) experiment was used to explore the subsurface material of the Apollo 17 landing site by means of electromagnetic radiation. The experiment was designed to detect electrical layering, discrete scattering bodies, and the possible presence of water. From the analysis of the data, it was expected that values of the electrical properties (dielectric constant and loss tangent) of lunar material in situ would be obtained. application/pdf en Surface electrical properties experiment chapter