Landsat Missions
The USGS archive holds data collected by the Landsat suite of satellites, beginning with Landsat 1 in 1972. All Landsat scenes in the USGS EROS archive are available for download at no charge. The Search and Download page describes how to find Landsat data.
The USGS Landsat Global Archive provides a graphic view of the acquisition of Landsat data from 1972 to 2008.
Currently, Landsat 7 and Landsat 5 continue to collect data, following a near-polar, sun-synchronous orbit on the Worldwide Reference System.
The Landsat Acquisition page lists daily capture schedules, acquisition calendars, and pending acquisitions.
Landsat 7 collects about 300 scenes per day and these are generally available to download within 24 hours of acquisition.
The collection of Landsat 5 data has not been as consistent throughout its 25 years, and is on a limited acquisition schedule. Landsat 5 scenes are also available to download generally within 24 hours of acquisition.