[PPS05-P11] Characterization of Lunar Surface Environment at APPROACH Landing-site Candidate
Keywords:APPROACH, Moon, Landing site selection, Internal structure
To meet the science objectives of APPROACH , we selected a landing-site candidate using LROC Narrow Angle Camera (NAC) data, rock abundance map deduced from Diviner , Th map  and elevation map . After the selection, we counted the boulders at the landing-site candidate to measure rock size-frequency distribution (RSFD).
We also simulated the deployment of a penetrator and estimated the probability of success (i. e. how many penetrators can successfully penetrate into subsurface). In the simulation, about 1 million rocks were randomly located within the error circle of the deployment. The size distribution of the rocks was given based on the RSFD we measured. Them, a penetrator was installed 1000 times. We carried out this operation 100 times and calculated the average and standard deviation of the probability of success. As a result, more than 99 % success was shown through the simulation.
In the presentation, we’ll show how the landing-site candidate was selected and what kind of analyses were demonstrated to evaluate the probability of success.
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We’d like to appreciate JAXA Lunar and Planetary Exploration Data Analysis Group (JLPEDA) for providing necessary image data & analysis tools.