After receiving a BA in math from UCLA, I began work at the Rand Corporation as a research assistant. While working at Rand I returned to UCLA and earned 2 masters degrees in mathematics and in biology. In 1987 I came to JPL and for 9 years I was a Cognizant Engineer on the Galileo Science Data Team responsible for spacecraft pointing knowledge. While flying through space, the spacecraft is spinning for stability. Like a thrown ball, the direction of travel and the orientation of the spacecraft are not the same. Pointing is the orientation of the spacecraft, i.e. which way the camera is looking even when it is not taking an image. Pointing knowledge is also used by communications and by science. I joined the software quality assurance team for the Mars Exploration Rovers flight software in 2001.