Frame DS1050-1006DF129: March 20,1969

摘要

Reading images such as DS1050-1006DF129 is not easy. However, barriers to accessing them and interpreting them have significantly diminished in the past decade. The entire collection of CORONA images is available for download or order courtesy of USGS's interactive website Earth Explorer. Professional GIS software such as ESRI's ArcGIS is expensive, but academic discounts are available, and there is a growing open-source GIS initiative to develop free tools for manipulating geographic information. For displaying and sharing maps and geographic information, Harvard's WorldMap offers a free open-source solution; Google Earth Pro provides a more robust commercial platform.