Data for: Identification of the Apollo 12 Lunar Module Ascent Stage impact site on the Moon

M122353240LC-crop-flip-contrast.png is part of LROC NAC image M122353240LC which has been cropped, flipped in the vertical direction to place north near the top, and contrast-stretched. It has been extended on the western (left) side to create space for part of the mapped data which falls just outside the image.

M122353240LC-map-overlay.png is the same image as M122353240LC-crop-flip-contrast.png with an overlay showing dark streaks apparently associated with the Apollo 12 Lunar Module Ascent Stage impact. The streaks were visually identified on a contrast-enhanced version of the image and on versions processed by merging with an image having opposite illumination as described in the text. A small extension of the streak map outside the area of image M122353240LC was added by registering adjacent images to the geometry of M122353240LC, not shown here.

图像文件M122353240LC-crop-flip-contrast.png源自月球勘测轨道飞行器窄角相机（LROC NAC）采集的M122353240LC原始图像。该子图已经过裁剪、垂直翻转（将北向调整至图像顶部）以及对比度拉伸处理。此外，为容纳落在原始图像外侧的部分制图数据，我们在其西侧（左侧）进行了扩边处理。

图像文件M122353240LC-map-overlay.png与M122353240LC-crop-flip-contrast.png为同一源图像，其上叠加了与阿波罗12号登月舱上升段撞击事件相关的暗色条纹标识。这些条纹是通过在该图像的对比度增强版本，以及与文中所述的相反光照条件下融合得到的图像版本中目视识别得到的。此外，为覆盖落在M122353240LC图像区域外的部分条纹制图数据，我们通过将相邻图像配准至M122353240LC的几何坐标系完成了扩边，该扩边部分未在本图中展示。