陆地卫星6号将安装一台改进型主题测绘仪(ETM)。ETM 将在原来的主题测绘仪上增加一个新的波段,即地面分辨率为15米的全色波段,这个分辨率相当高,可用于地理制图、测绘和其他需要高分辨率的场合。经过模拟成象试验,表明15米的分辨率相对于原来主题测绘仪的30米分辨率,图片质量有相当的改进。陆地卫星7号将上两台仪器,除了上述的 ETM 以外,还有一台改进了的陆地卫星 Landsat 6 will be equipped with an improved theme plotter (ETM). ETM will add a new band to its original theme plotter, the panchromatic band of 15 meters of ground resolution, which is quite high resolution for geographic mapping, mapping and other applications that require high resolution. After the analog imaging test, indicating that the resolution of 15 meters relative to the original theme of 30 meters resolution plotter, picture quality has been considerably improved. Landsat 7 will be on the two instruments, in addition to the above ETM, there is an improved land satellite