They tell us:
The U.S. Geological Survey's (USGS) Long Term Archive (LTA) at the National Center for Earth Resource Observations and Science (EROS) in Sioux Falls, SD is one of the largest civilian remote sensing data archives. It contains a comprehensive record of the Earth's changing land surface. Scientists from around the world depend on this archive to conduct research on changes that affect our environment, resources, health, and safety. Time series images are a valuable resource for scientists, disaster managers, engineers, educators, and the general public. USGS EROS has archived, managed, and preserved land remote sensing data for more than 35 years and is a leader in preserving land remote sensing imagery. USGS EROS has a mandate to provide access and data preservation support for its land remote sensing data archive.
The tool simple to use just select your area from Search Criteria - use the points lat/long and the use the Data Set(s) to select by your options.
You can use more than one data set to search into your area and the result will be show like a log.
This online tool can be found here.
This is a screenshot with this online tool:
