James Clark Hughes¹, Jonathan Dunlap¹, Stephen Johnson¹, Corwin Grant Olson¹, Roberto Siegert¹, Jae-Ho Song¹, Don Tucker¹, Kenneth Bennett², Robert B Fuchs², Neal Thompson² and William Wangler², (1)University of Texas at Austin, Austin, TX, United States, (2)National Geospatial Intelligence Agency, Springfield, VA, United States