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FIGURE 3-49.-Telephotograph of an area of southwestern Aristarchus Plateau. The plateau was illuminated by a Sun only 15 to 20 above the horizon at the time this photograph was taken. Although this elevation is still low, a dramatic change in the surface appearance has resulted from the 10 to 15 increase in Sun angle since figure 3-48 was exposed AS15-95-12978 . FIGURE 3-49.-Telephotograph of an area of southwestern Aristarchus Plateau. The plateau was illuminated by a Sun only 15 to 20 above...

Apollo Window Meteoroid Experiment

The Apollo window meteoroid experiment involves a careful study of the CM heat-shield window surfaces for pits caused by meteoroid impacts. These tiny craters, when identified, are further examined to obtain information on crater morphology and possible meteoroid residence. So far, 10 possible impacts of 50 fim diameter and larger have been identified in the windows of the Apollo 7, 8,9, 10, 12, 13, and 14 spacecraft. These findings correspond to a meteoroid flux below that expected from...

Solar Wind Spectrometer Experiment

Goldstein,a Marcia Neugebauer and Conway W. Snyder3- With the deployment of the Apollo 15 lunar surface experiments package, two identical solar-wind spectrometers SWS , separated by approximately 1100 km, are now on the lunar surface. The spectrometers provide the first opportunity to measure the properties of the solar plasma simultaneously at two locations a fixed distance apart. It is hoped that these simultaneous observations will yield new information about the...

Summary of Scientific Results

The major scientific objectives of the Apollo 15 mission were to carry out extensive geological exploration, comprehensive sampling, and photographic documentation of the Apennine Front at Hadley Delta, Hadley Rille, and the mare plain to emplace the Apollo lunar surface experiments package ALSEP near the landing site and to perform a series of survey experiments with the scientific instrument module SIM equipment from lunar orbit and during transearth coast. The main scientific phase of the...

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Cumulative mass spectrum observed by the mass analyzer detector, including all counts shown in figure 12-7. The mass ranges amu 0 of each channel are indicated. The spectrum was taken at the 16.2-eV energy step. resulted from the normal fluctuations of the magnetosheath ion intensities. For the following 5 min, both the mass analyzer detector and the total ion detector indicated the presence of ions with energies between 10 and 20 eV and masses in the range 16 to 20 amu Q. At the...