 The combination of satellite data from Landsat 8, Sentinel-2A and Sentinel-2B provides increased opportunities for more frequent cloud-free surface observations due to variable cloud cover at different overpass times and dates, resulting in a global median average revisit interval of 2.9 days and a global median minimum, revisit interval of 14 minutes, plus or minus 1 minutes, and maximum revisit interval of 7.0 days. This article was authored by Jin Li and David P. Roy.