Fig. 10

Anisothermality of Tycho crater in the image taken on 2021/02/13 16:30, with a corresponding local time of 0.5 H. The black points are the brightness temperatures at the center of Tycho crater in HSD at every band. The black error bars are estimated from the background noise level in each image. The black dashed and dotted lines show surface temperature models of lunar rock and regolith in Tycho crater at the same local time, respectively. The blue, orange, green, red, and purple solid lines are predicted brightness temperatures of mixture models with rock ratios of 2.5, 5, 10, 20, and 40%