p158r021_2x19750618-陆地卫星遥感影像

本数据集为MSS，Landsat2卫星的数据集，p158r021_2x19750618。轨道号：158；行号：021；数据时间：1975-06-18。<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 an MSS dataset acquired by the Landsat 2 satellite, with the identifier p158r021_2x19750618. The path number is 158, row number is 021, and the data acquisition date is 1975-06-18.

Landsat is a series of Earth resources satellites developed by the United States. Formerly known as the Earth Resources Technology Satellite (ERTS) in its early stage, it is a series of Earth observation satellite systems dedicated to detecting Earth's resources and environment.

Since the launch of Landsat 1 on July 23, 1972, by March 1, 1984, the Landsat program had launched satellites up to Landsat 5. The launch attempt of Landsat 6 failed. Landsat 7 was launched on April 15, 1999, and still undertakes important satellite observation missions to this day.

The key differences between Landsat 7 and Landsat 5 in terms of data products are: Landsat 7 added a 15-meter-resolution panchromatic (PAN) band; the data for Band 6 is divided into low-gain and high-gain datasets, with its spatial resolution improved from 120 meters to 60 meters.