Collection Information
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IDENTIFIER |
urn:nasa:pds:a17sep:data::1.0
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NAME |
Apollo 17 Surface Electrical Properties Experiment Calibrated ASCII Data Collection
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TYPE |
Document
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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.
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SEARCH/ACCESS DATA |
Apollo 17 Surface Electrical Properties Experiment Calibrated ASCII Data Online
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Citation |
DIGITAL OBJECT IDENTIFIER (DOI) |
10.17189/1518359 (from parent bundle)
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AUTHOR LIST |
Simmons, G.M.; Strangway, D.W.
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EDITOR LIST |
Williams, D.R.; McLaughlin, S.A.
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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.
|
|
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Context |
START DATE TIME |
1972-12-11T12:00:00.000Z
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STOP DATE TIME |
1972-12-13T12:00:00.000Z
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LOCAL MEAN SOLAR TIME |
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LOCAL TRUE SOLAR TIME |
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SOLAR LONGITUDE |
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PRIMARY RESULT PURPOSE |
SCIENCE
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PRIMARY RESULT PROCESSING LEVEL |
Calibrated
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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.
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PRIMARY RESULT WAVELENGTH RANGE |
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PRIMARY RESULT DOMAIN |
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PRIMARY RESULT DISCIPLINE NAME |
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INVESTIGATION |
APOLLO 17
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OBSERVING SYSTEM |
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OBSERVING SYSTEM COMPONENT |
Apollo 17 Lunar Module
Apollo 17 Surface Electrical Properties (SEP) Experiment
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TARGET |
MOON
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REFERENCES |
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