Infrared atlas charts of the eclipsed moon

The objective of this atlas is to present the thermal response of the lunar surface observed during an eclipse of the Moon with accurate position data. The observations were made at a wavelength of 11 µm with an angular resolution of 10, equivalent to 17 km at the disk center. Over a thousand thermally anomalous regions (hot spots) were detected. They cool more slowly than their environs and remain warmer than their environs during the umbral phase. In addition to these very localized hot spots some of the maria show thermal enhancements during the eclipse.Fourty four charts make up this atlas which are identical in coverage and projection to the Lunar Atlas Charts (LAC) series. The charts are in the form of digital images of a normalized temperature difference which is particularly useful for studying regions of small thermal enhancements. Each increase of intensity corresponds to 4 K temperature increase. Grid lines are drawn every two degrees with tic marks each one-half degree. A brief outline of the observations and data reduction methods is given. The map construction techniques are described along with a discussion on how the atlas could be used.The appendix is a list of the published infrared atlantes. These include isothermal contour maps and images of the day-time, eclipsed and night-time Moon, and catalogues of thermal anomalies of the eclipsed and night-time Moon.Paper dedicated to Professor Harold C. Urey on the occasion of his 80th birthday on 29 April, 1973. A portion of the research reported in this paper was done while the author was a Visiting Scientist at The Lunar Science Institute, which is operated by the Universities Space Research Association under Contract NSR-09-051-001 with the National Aeronautics and Space Administration. This paper is Lunar Science Institute Contribution No. 111.