Bralgah Crater Boulder Survey and Simulation Data

The ZIP files contain simulation data from using PKDGRAV to simulate mass movements on Bennu. Each ZIP is for the simulations with the named number of particles, and contains the initial setups, as well as FITS files with the final locations and displacements of the boulders. The FITS files also contain headers which contain information about the data, as well as simulation parameters. The NPY file is a Python array of the survey data for boulders at a flow site at the Bralgah crater on asteroid Bennu.The columns for the survey data are as follows:0: Boulder ID1-3: x, y, z coordinates4-5: Lat, lon coordinates6: Major axis length7: Major-minor axis ratio8: Orientation of major axis

本数据集的ZIP压缩包包含使用PKDGRAV模拟贝努小行星（Bennu）表面质量运动的仿真数据。每个ZIP压缩包对应指定粒子数的仿真任务，内含初始配置文件，以及存储砾石最终位置与位移的FITS文件。FITS文件还包含表头信息，其中记录了数据相关内容与仿真参数。NPY文件为Python数组格式，存储了贝努小行星布拉尔加陨石坑（Bralgah crater）某流场站点的砾石勘测数据。该勘测数据的列定义如下：0：砾石ID；1~3：x、y、z三维坐标；4~5：纬度、经度坐标；6：长轴长度；7：长短轴比值；8：长轴取向。