p118r058_4x19900619-陆地卫星遥感影像

本数据集为TM，Landsat4卫星的数据集，p118r058_4x19900619。轨道号：118；行号：058；数据时间：1990-06-19。<br>陆地卫星（Landsat）是美国地球资源卫星系列。是美国用于探测地球资源与环境的系列地球观测卫星系统，曾称作地球资源技术卫星（ERTS）。<br>自1972年7月23日发射陆地卫星1号以来，到1984年3月1日已发射到陆地卫星5号。陆地卫星6发射失败。陆地卫星7（Landsat－7）于1999年4月15日发射升空，至今依然担负着重要任务。<br>在数据产品方面，Landsat－7与Landsat－5的最主要差别有：增加了分辨率为15米的全色波段（PAN波段）；波段6的数据分低增益和高增益数据，分辨率从120米提高到60米。

This dataset is a TM (Thematic Mapper) dataset from the Landsat 4 satellite, with the identifier p118r058_4x19900619. Its path number is 118, row number is 058, and the data acquisition date is 1990-06-19.
Landsat, formerly referred to as the Earth Resources Technology Satellite (ERTS) in its early days, is a U.S. series of Earth resources satellites. It is a series of Earth observation satellite systems designed for detecting Earth's resources and environment.
Since the launch of Landsat 1 on July 23, 1972, by March 1, 1984, the Landsat series had deployed up to Landsat 5. The launch of Landsat 6 ended in failure. Landsat 7 was launched on April 15, 1999, and still undertakes important Earth observation missions to this day.
In terms of data products, the most significant differences between Landsat 7 and Landsat 5 are: added a 15-meter resolution panchromatic (PAN) band; the data of Band 6 is divided into low-gain and high-gain datasets, with its resolution improved from 120 meters to 60 meters.