VIIRS/JPSS1 Day/Night Band Resolution Terrain Corrected Geolocation 6 Min L1 Swath 750m NRT

The VIIRS/VJ1 Day/Night Band Resolution Terrain Corrected Geolocation 6-Min L1 Swath 750m Near Real Time (NRT) product, short-name VJ103DNB_NRT includes the geolocation fields that are calculated for VIIRS day-night band (DNB) Line of sight (LOS) for all orbits at the nominal resolution of 750 m. The locations and ancillary information correspond to the intersection of the centers of each Field of View (FOV) from 16 detectors in the DNB on the Earth's surface. A digital terrain model is used to model the Earth's surface. The main inputs are the spacecraft attitude and orbit ephemeris data, the instrument telemetry and the digital elevation model. The geolocation fields contained within the VNP03DNB Geolocation files include geodetic latitude, longitude, surface height above the geoid, solar and lunar zenith and azimuth angles, lunar phase angle and illumination fraction, satellite zenith and azimuth angles, and a land/water mask for each 750m sample. Additional information is included in the header to enable the calculation of the approximate location of the center of the detectors for any of the VIIRS bands. This product is used as input by subsequent VIIRS day/night band products, particularly those produced by the Land team.

本数据集为VIIRS/VJ1日夜波段分辨率地形校正地理定位6分钟L1扫描750米近实时（NRT）产品，简称VJ103DNB_NRT，其中包含针对VIIRS日夜波段（DNB）视线的地理定位字段，这些字段针对所有轨道在750米的标准分辨率下进行计算。数据位置及辅助信息对应于地球表面16个DNB探测器视场中心的交点。地球表面模型通过数字地形模型进行构建。主要输入包括航天器姿态和轨道摄动数据、仪器遥测数据和数字高程模型。VNP03DNB地理定位文件中包含的地理定位字段包括大地纬度、经度、相对于大地水准面的地表高度、太阳和月亮的仰角和方位角、月亮相位角和光照分数、卫星的仰角和方位角以及每个750米样本的土地/水域掩膜。头文件中还包含附加信息，以实现计算VIIRS各波段探测器中心的大致位置。该产品作为后续VIIRS日夜波段产品的输入，特别是由陆地团队生产的产品。