On Monday, June 25, 2018, on-demand ordering of Landsat 1-5 Multispectral Scanner (MSS) Pre-Collection Level-1 scenes will be discontinued from EarthExplorer. Landsat MSS scenes currently available for download will not be affected and will remain downloadable.
Additionally, the Landsat 1-5 MSS Pre-Collection dataset will be removed from EarthExplorer in the near future. Users are strongly encouraged to use Landsat Collection 1 Level-1 data products for science applications. Please contact Landsat User Services with any questions regarding this announcement.