TY - RPRT TI - Change-Based Satellite Monitoring Using Broad Coverage and Targetable Sensing AU - Chien, Steve A. AU - Tran, Daniel Q. AU - Doubleday, Joshua R. AU - Doggett, Thomas PY - 2013 UR - https://ntrs.nasa.gov/citations/20130012651 ID - 20130012651 ER -