DEFUNCT: Apache Point Observatory Lunar Laser-ranging Operation (APOLLO) normal point data: 2006 through 2020

DEFUNCT: Normal point data from the Apache Point Observatory Lunar Laser-ranging Operation (APOLLO) covering the 15-year span from April 2006 through the end of 2020. APOLLO measures the earth-moon separation by recording the round-trip travel time of photons from the Apache Point Observatory to five retro-reflector arrays on the moon. The APOLLO data set, combined with the 50-year archive of measurements from other lunar laser ranging (LLR) stations, can be used to probe fundamental physics such as gravity and Lorentz symmetry, as well as properties of the moon itself. These normal points have a median nightly accuracy of 1.7mm, which is an order of magnitude better than other LLR stations. Data is provided in both the "JPL" format (.np) and the Consolidated Laser Ranging Data Format (.crd)

已停用：本数据集包含阿帕奇点天文台月球激光测距项目（Apache Point Observatory Lunar Laser-ranging Operation, APOLLO）在2006年4月至2020年底这15年跨度内的归一化点数据。APOLLO通过记录从阿帕奇点天文台发射至月球上5个后向反射器阵列的光子往返飞行时间，以测量地月间距。该APOLLO数据集与其他月球激光测距（Lunar Laser Ranging, LLR）站点50年的测量档案相结合，可用于探究引力、洛伦兹对称性等基础物理问题，以及月球本身的物理特性。这些归一化点数据的夜间测量中值精度达1.7毫米，比其他LLR站点的测量精度高一个数量级。数据集以JPL格式（.np）以及统一激光测距数据格式（Consolidated Laser Ranging Data Format, .crd）两种格式提供。