Landsat 4 and EOSAT Landsat 4 launched on July 16, 1982, and was functional until 1993. In addition to the multispectral scanner (MSS), it carried a more advanced imaging sensor called the ...

though the full seven-band MSS was launched with Landsat-4. Despite the reduction to four data channels, and its experimental nature, after NASA began to review the images Landsat-1 sent back ...

and green regions of the electromagnetic spectrum (bands 4, 2, and 1 from the Multispectral Scanner Systems (MSS) aboard Landsat 1, 2, and 4, and bands 4, 3, and 2 from the Thematic Mapper (TM ...