p140r028_5x19891024-陆地卫星遥感影像

本数据集为TM，Landsat5卫星的数据集，p140r028_5x19891024。轨道号：140；行号：028；数据时间：1989-10-24。<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 Thematic Mapper (TM) dataset from the Landsat 5 satellite, with the identifier p140r028_5x19891024. The path number is 140, row number is 028, and the data acquisition date is 1989-10-24.

Landsat is a series of Earth resources satellites developed by the United States. Originally named the Earth Resources Technology Satellite (ERTS) in its early stage, it is a suite of Earth observation satellite systems used to detect Earth's resources and environment.

Since the launch of Landsat 1 on July 23, 1972, up to March 1, 1984, the 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 performs important observational duties to this day.

In terms of data products, the most prominent differences between Landsat 7 and Landsat 5 are: Landsat 7 adds a 15-meter-resolution panchromatic band (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.