Collection Information
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IDENTIFIER |
urn:nasa:pds:a15hfe_calibrated_arcsav:data::1.0
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NAME |
Apollo 15 ALSEP ARCSAV Heat Flow Experiment Calibrated Gradient Bridge Temperatures Collection (1975-092 to 1975-181)
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TYPE |
Data
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DESCRIPTION |
This collection contains fixed-width ASCII files contains fully processed,
calibrated temperature data for the upper and lower gradient bridges (thermal sensors) on
both probes of the Heat Flow Experiment (HFE) at the Apollo 15 landing site. The time span is
02 April through 30 June 1975. These data were derived from raw measurements extracted from
NASA's original Apollo Lunar Surface Experiments Package (ALSEP) archive tapes, also known as
ARCSAV tapes.
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SEARCH/ACCESS DATA |
Apollo 15 ALSEP ARCSAV Heat Flow Experiment Calibrated Gradient Bridge Temperatures Archive Online
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Citation |
DIGITAL OBJECT IDENTIFIER (DOI) |
10.17189/1518442 (from parent bundle)
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AUTHOR LIST |
Nagihara, S.; Nakamura, Y.
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EDITOR LIST |
Williams, D.R.; McLaughlin, S.A.
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PUBLICATION YEAR |
2018
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DESCRIPTION |
This collection contains fixed-width ASCII files contains fully processed,
calibrated temperature data for the upper and lower gradient bridges (thermal sensors) on
both probes of the Heat Flow Experiment (HFE) at the Apollo 15 landing site. The time span is
02 April through 30 June 1975. These data were derived from raw measurements extracted from
NASA's original Apollo Lunar Surface Experiments Package (ALSEP) archive tapes, also known as
ARCSAV tapes.
|
|
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Context |
START DATE TIME |
1975-04-02T12:04:00.817Z
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STOP DATE TIME |
1975-06-30T11:50:41.779Z
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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 |
Temperature averages and differences and thermal conductivity measurements in the
near-surface layers of the moon by the Apollo 15 Heat Flow Experiment during the time span of
02 April through 30 June 1975. The data are for the temperature sensors that were collectively
called gradient bridges in the two heat flow probes. The scientific objective was to determine
the rate of heat loss from the lunar interior by temperature and thermal property measurements
at and below the surface.
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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 15
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OBSERVING SYSTEM |
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OBSERVING SYSTEM COMPONENT |
Apollo 15 ALSEP
Apollo 15 Heat Flow Experiment
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TARGET |
MOON
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REFERENCES |
Apollo 15 Preliminary Science Report, NASA SP-289, NASA, Washington, D.C.,
1972.
ALSEP Performance Summary Reports, NASA, issued from 13 April 1973 to 30
September 1977.
Arthur D. Little, Inc., Test Procedure No. 0501, Part IV, Rev. F Thermal
Environment Test Procedure Heat Flow Probe and Electronics for ALSEP Program,
1968.
Bates, J.R., W.W. Lauderdale, and H. Kernaghan, ALSEP termination report,
NASA Reference Publication Series, NASA-RP-1036, 162 pages, published by NASA, Washington,
D.C., 1979.
Davies, M.E., and T.R. Colvin, Lunar coordinates in the regions of the Apollo
landers, Journal of Geophysical Research, Volume 105, Issue E8, pages 20,227-20,280,
2000.
Langseth, M.G., S.J. Keihm, and K. Peters, Revised lunar heat flow values,
Proceedings of Lunar Science Conference 7th, Volume 3, p. 3143-3171, 1976.
Langseth, M. G., Lunar Heat Flow Experiment: Final Technical Report, 6 June
1966 - 30 June 1975, NASA CR-151619, CU-4-77, Lamont-Doherty Geological Observatory of
Columbia University, 1977.
Langseth, M. G., Development of a lunar heat flow experiment for ALSEP
Quarterly progress report No. 1 Jul. - Sep. 1969, NASA CR-102080, Lamont-Doherty Geological
Observatory of Columbia University, 1969.
Lauderdale, W.W., and W.F. Eichelman, Apollo Scientific Experiments Data
Handbook, NASA, TM-X-58131, Houston, Texas, August 1974, updated August 1976.
Nagihara, S., Y. Nakamura, L.R. Lewis, D.R. Williams, P.T. Taylor, E.J.
Grayzeck, P. Chi, and G.K. Schmidt, Search and Recovery Efforts for the ALSEP Data Tapes, 42nd
Lunar and Planetary Science Conference, held March 7-11, 2011 at The Woodlands, Texas, Lunar
and Planetary Institute Contribution No. 1608, Abstract 1103, 2011.
Nagihara, S., W.S. Kiefer, P.T. Taylor, D.R. Williams, and Y. Nakamura,
Examination of the long-term subsurface warming observed at the Apollo 15 and 17 sites
utilizing the newly restored heat flow experiment data from 1975 to 1977, Journal of
Geophysical Research: Planets, 123, 1125-1139, 2018.
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