David A. Seal

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[1] The Shuttle Radar Topography Mission produced the most complete, highest-resolution digital elevation model of the Earth. The project was a joint endeavor of NASA, the National Geospatial-Intelligence Agency, and the German and Italian Space Agencies and flew in February 2000. It used dual radar antennas to acquire interferometric radar data, processed(More)
After the launch of the New Horizons spacecraft in 2006, the discovery of four new moons in the Pluto-Charon system led to the concern that there could be a significant dust environment that would endanger the spacecraft during the flyby. The best observations then available could not provide an acceptable upper limit of the dust environment, so a process(More)
I became bored sometime this August 2006, and decided to review some of my analysis, by reading my old analysis book[1] from Junior year. While I’m at it, I decided to type up some solutions to a few problems that I scratched out solutions to on notepaper in order to pick up some LTEXpractice along the way. This paper has solutions to some of the problems I(More)
The selection and optimization of Titan flyby altitudes for NASA's Cassini mission at Saturn has traveled a long, fascinating, and often torturous sixteen-year path — starting in 2001, when pre-arrival trajectory design decisions had to be made, through April of 2017 when Cassini's last, and arguably most critical, low flyby takes place. The(More)
As a follow-on to the Technical Capability Assessment Team, in 2015 NASA began seven Agency-wide efforts to seek out opportunities to improve the effectiveness of NASA operations. One of these technical teams is the Mission Operations Planning team, charged with increasing interactions and efficiency for planning of mission activities. That team is chaired(More)
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