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  • 1
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    Interferograms of window wavefront deformations as a measure of angular deviations to a line of sight (1970)
    In:  Other Sources
    Details
    Publication Date: 2011-08-16
    Description: Interferograms of window wave front deformations to measure angular deviations to line of sight
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: ; ADEMIE DES SCIENCES
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  • 2
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    Feldspar basalts in lunar soil and the nature of the lunar continents (1974)
    In:  Other Sources
    Details
    Publication Date: 2011-08-16
    Description: It is found that 25% on the Apollo-14 glasses have the same composition as the glasses in two samples taken from the Luna-16 column. The compositions are equivalent to feldspar basalt and anorthosite gabbro, and are similar to the feldspar basalts identified from Surveyor-7 analysis for lunar continents.
    Keywords: LUNAR AND PLANETARY EXPLORATION
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  • 3
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    Major element composition of Luna 20 glasses. (1972)
    In:  Other Sources
    Details
    Publication Date: 2019-06-27
    Description: Ten per cent of the 50 to 150-micron size fraction of Luna 20 soil is glass. A random suite of 270 of these glasses has been analyzed by electron microprobe techniques. The major glass type forms a strong cluster around a mean value corresponding to Highland basalt (anorthositic gabbro) with 70% normative feldspar. Minor glass groups have the compositions of mare basalts and of low-K Fra Mauro type basalts. The glass data indicate that Highland basalt is the major rock type in the highlands north of Mare Fecunditatis.
    Keywords: CHEMISTRY
    Type: Earth and Planetary Science Letters; 17; Dec. 197
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  • 4
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    Preliminary data on boulders at station 6, Apollo 17 landing site (1973)
    In:  CASI
    Details
    Publication Date: 2019-06-27
    Description: A cluster of boulders at Station 6 (Apollo 17 landing site) consists of breccias derived from the North Massif. Three preliminary lithologic units were established, on the basis of photogeologic interpretations; all lithologies identified photogeologically were sampled. Breccia clasts and matrices studied petrographically and chemically fall into two groups by modal mineralogy: (1) low-K Fra Mauro or high basalt composition, consisting of 50-60% modal feldspar, approximately 45% orthopyroxene and 1-7% Fe-Ti oxide; (2) clasts consisting of highland basalt composition, consisting of 70% feldspar, 30% orthopyroxene and olivine and a trace of Fe-Ti oxide.
    Keywords: SPACE SCIENCES
    Type: NASA-TM-X-58116 , JSC-08484
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  • 5
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    Apollo 15 green glasses. (1973)
    In:  Other Sources
    Details
    Publication Date: 2019-06-27
    Description: The samples analyzed include 28 spheres, portions of spheres, and angular fragments from soil 15101. Emerald green glasses from other soils are identical to those from 15101. The composition of the green glass is unlike that of any other major lunar glass group. The Fe content is comparable to that in mare basalts, but Ti is much lower. The Mg content is much higher than in most lunar materials analyzed to date, and the Cr content is also high. The low Al content is comparable to that of mare basalt glasses.
    Keywords: SPACE SCIENCES
    Type: Physics of the Earth and Planetary Interiors; 7; June 197
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  • 6
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    Luna 20 soil - Abundance and composition of phases in the 45-125 micron fraction. (1973)
    In:  Other Sources
    Details
    Publication Date: 2019-06-27
    Description: Glass compositions in the Luna 20 soil indicate a minor contribution of mare rocks and a major contribution of highly feldspathic highland material. Glasses with the composition of highland basalt (anorthositic gabbro or norite) predominate in a range of highly aluminous glasses. The analyses of minerals in the soil show that the highland rocks have a unique assemblage of minerals that can readily be distinguished from the mineral assemblages of either mare or KREEP basalts. The soils are characterized by abundant anorthitic, low-Fe plagioclase. Highly magnesian orthopyroxenes, pigeonites, and augites are the most prominent pyroxenes. Unlike mare basalt pyroxenes, clinopyroxenes with intermediate Ca values are not abundant, but extreme iron enrichment toward pyroxferroite does occur. Olivines are more abundant than at other sites and are Mg-rich, low in Ca and Cr. Spinels with compositions approaching MgAl2O4 predominate over pleonastes and chromites. Ilmenite and metal are present but not abundant. The mineral compositions are consistent with derivation from a suite of highly feldspathic rocks in which highland basalt compositions predominate.
    Keywords: SPACE SCIENCES
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  • 7
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    Highly aluminous glasses in lunar soils and the nature of the lunar highlands. (1972)
    In:  Other Sources
    Details
    Publication Date: 2019-06-27
    Keywords: SPACE SCIENCES
    Type: Geochimica et Cosmochimica Acta; 36; Aug. 197
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  • 8
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    The occultation of beta Scorpii by Jupiter and Io. I - Jupiter. (1972)
    In:  Other Sources
    Details
    Publication Date: 2019-06-27
    Description: Use of computer-controlled one-dimensional area-scanning photometers to observe the occultation of the Beta Scorpii system by Jupiter on May 13, 1971. Six high-quality light curves were obtained; three of the occultations of the brighter component Beta Sco A and three of Beta Sco C. The mean scale height of the Jovian upper atmosphere is 32 plus or minus 6 km near -10 deg zenographic latitude, 31 plus or minus 2 km at -47 deg zenographic latitude, and 24 plus or minus 2 km at -57 deg zenographic latitude. The determination of the atmospheric scale height is highly sensitive to the background level subtracted, providing a possible explanation of an earlier result by Baum and Code (1953) placing the scale height at about 8 km. Correlated departures of the light curve from a theoretical isothermal curve are reproduced in the three bright-star curves, and are thus not due to random density fluctuations in the Jovian atmosphere, but are rather due to global stratification. Details of the stratification, which includes at least a number of warm layers, are examined by deconvolution of the light curves. There is evidence for a high-temperature (T greater than 300 K) thermosphere on two of the bright-star light curves.
    Keywords: SPACE SCIENCES
    Type: Astronomical Journal; 77; Feb. 197
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  • 9
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    Petrology of a portion of the Mare Fecunditatis regolith. (1972)
    In:  Other Sources
    Details
    Publication Date: 2019-06-27
    Description: Extensive microprobe analyses have been made of pyroxenes, plagioclases, olivines, opaque minerals, and glasses in two 0.025 g lunar samples returned from the Luna 16 mission, with the aim to characterize the Mare Fecunditatis regolith. No major differences were found between the near surface soil horizon A and horizon D at approximately 30 cm depth. Resulting characteristics of the mineral examined are presented and discussed.
    Keywords: SPACE SCIENCES
    Type: Earth and Planetary Science Letters; 13; Jan. 197
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  • 10
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    Hypersonic and transonic buzz measurements on the lower pitch flap of the M2-F2 lifting entry configuration (1972)
    In:  CASI
    Details
    Publication Date: 2019-06-27
    Description: Free-oscillation damping measurements at hypersonic and transonic Mach numbers are presented for the lower pitch flap of the M2-F2 reentry vehicle. For the flow and model conditions tested, the damping measurements indicate the absence of hypersonic buzz instability for flap rotation frequencies of 47.3 Hz, 153 Hz, and 360 Hz, the presence of transonic buzz for 47.3 Hz flap, and the absence of transonic buzz for a 115 Hz flap. There are not enough flap damping data for an error estimate based on repeatability, but a partial damping calibration is presented in which an analog computer simulation of random flap response for a known flap damping is fed into the autocorrelation computer and filter combination used for most of the damping measurements.
    Keywords: AERODYNAMICS
    Type: NASA-TN-D-6799 , A-3790
    Format: application/pdf
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