Trailblazer 1964

In 1964, the National Reconnaissance Office (NRO) conducted what has become known as the Quill Experiment which collected radar images from space. It was the nation's first effort to obtain space imagery from a new type of sensor, the radar sensor. In this compendium, you will find all the documentation that currently exists relating to the Quill program, including two histories and 28 other documents.