Collection Information
IDENTIFIER urn:nasa:pds:a17sep:data::1.0
NAME Apollo 17 Surface Electrical Properties Experiment Calibrated ASCII Data Collection
TYPE Document
DESCRIPTION This collection two comma-delimited ASCII files of calibrated lunar surface electromagnetic field data at six measured frequencies from 1.0 to 32.1 MHz and navigation (range) data from the Surface Electrical Properties (SEP) Experiment at the Apollo 17 landing site for the time span of 11-13 December 1972. One file contains straightened science and navigation (range) data; the other file contains only unstraightened science data. These data were extracted from binary files held on magnetic tape at the NASA Space Science Data Coordinated Archive as data set PSPG-00559, then reformatted to ASCII. The bundle description in the document collection describes the format of these ASCII data products.
SEARCH/ACCESS DATA Apollo 17 Surface Electrical Properties Experiment Calibrated ASCII Data Online
   
Citation
DIGITAL OBJECT IDENTIFIER (DOI) 10.17189/1518359 (from parent bundle)
AUTHOR LIST Simmons, G.M.; Strangway, D.W.
EDITOR LIST Williams, D.R.; McLaughlin, S.A.
PUBLICATION YEAR 2019
DESCRIPTION This collection two comma-delimited ASCII files of calibrated lunar surface electromagnetic field data at six measured frequencies from 1.0 to 32.1 MHz and navigation (range) data from the Surface Electrical Properties (SEP) Experiment at the Apollo 17 landing site for the time span of 11-13 December 1972. One file contains straightened science and navigation (range) data; the other file contains only unstraightened science data. These data were extracted from binary files held on magnetic tape at the NASA Space Science Data Coordinated Archive as data set PSPG-00559, then reformatted to ASCII. The bundle description in the document collection describes the format of these ASCII data products.
   
Context
START DATE TIME 1972-12-11T12:00:00.000Z
STOP DATE TIME 1972-12-13T12:00:00.000Z
LOCAL MEAN SOLAR TIME
LOCAL TRUE SOLAR TIME
SOLAR LONGITUDE
PRIMARY RESULT PURPOSE SCIENCE
PRIMARY RESULT PROCESSING LEVEL Calibrated
PRIMARY RESULT DESCRIPTION Calibrated lunar electromagnetic science data at six measured frequencies from 1.0 to 32.1 MHz and navigation (range) data from the Surface Electrical Properties (SEP) Experiment at the Apollo 17 landing site for the time span of 11-13 December 1972. The SEP experiment consisted o two stationary, orthogonal, electric dipole transmitting antennae laid on the lunar surface near the Lunar Module and a wide-bandwidth, mutually-perpendicular, three-component receiver antenna mounted on the Lunar Roving Vehicle which traversed away from the transmitting receiver with the purpose of obtaining data about electromagnetic energy transmission, absorption, and reflection characteristics of the lunar regolith. Comparisons of the transmitted and received signals at frequencies of 1, 2.1, 4, 8.1, 16, and 32 MHz were used to determine layering, search for pressure of water below the surface, and measure electrical properties in situ, all as a function of depth.
PRIMARY RESULT WAVELENGTH RANGE
PRIMARY RESULT DOMAIN
PRIMARY RESULT DISCIPLINE NAME
INVESTIGATION APOLLO 17
OBSERVING SYSTEM
OBSERVING SYSTEM COMPONENT Apollo 17 Lunar Module
Apollo 17 Surface Electrical Properties (SEP) Experiment
TARGET MOON
REFERENCES