- Gravitational Reference Sensor (ST-7/GRS) (2003 - 2005)
- Chair, Standing Review Board
- Technology Consultant
- Low Temperature Microgravity Physics Facility (LTMPF) (2001 - 2004)
- Technology Consultant
- Electronics and Software Subsystem
- GLAST Advanced Technology Program (1997 - 2000)
- Gamma-ray Large Area Space Telescope
- $400M joint NASA/DOE/International collaboration project
- Data Acquisition Subsystem Manager
- Responsible for data system design
- Managed group at Stanford and team member contributions
- Successfully completed beam test of prototype
- Proposal was selected by NASA.
- Station Processor and Experiment Controller (SPEC)
- Designed and developed prototype data acquisition system for Space Station based cryogenic experiments.
- SPEC provides greatly reduced resources (mass, power, cost) with enhanced performance and low EMI.
- Supervised one engineer and 2 technicians.
- Designs and concepts handed off to industry for flight implementation.
- Confined Helium Experiment (CHeX)
- Managed electronics and computer system for Space Shuttle based cryogenic experiment flown in 1997.
- Designed new computer system and software to significantly increase data acquisition and control capabilities using R3000 CPU, VME chassis and 'C' application code using VxWorks RTOS.
- Modified existing electronics to increase performance including precision, pulsed heater circuit.
- Successful mission.
- Lambda Point Experiment (LPE)
- Performed electronics design review and consulting, mission support, and data analysis.
- Successful mission.
- Shuttle Electrodynamic Tether System (SETS)
- Designed and managed the experiment beginning with the initial concept in 1975
- Participated in NASA committees and promoted the mission concept leading to a NASA Announcement of Opportunity in 1984
- Total US and Italy mission costs about $500M.
- SETS selected in 1985 and mission launched in 1992
- Successful mission
- Ultra Low Power CMOS
- Wrote proposal and developed concept with another member of the laboratory
- Obtained 3 year NASA grant to develop technology (1990-1992)
- Development led to discovery of techniques for back biasing and high speed, sub-threshold switching with drop in power requirement greater than factor of 10
- Technology taken over by Sun for development
- Center for Aeronautics and Space Information Systems (CASIS) 1982
- Promoted and developed NASA block grant to Stanford to support multiple research groups in area of information systems
- Technologies supported included: networking, solid-geometry modeling, video simulations, emulation based studies, and stereo image compression algorithms
- Tethered Payload Experiment (1980, 1981, 1983)
- Pioneered the tether technique for sounding rockets
- Series of sounding rocket experiments to develop electrodynamic tether
- Joint project with Japanese Institute for Space and Astronautical Science
- Space Shuttle Based Electron Beam Experiments
- Spacelab 2 VCAP Reflight (1985) Co-Investigator
- Spacelab 1 SEPAC (1983) Payload Operations Control Center Co-Manager
- STS-3 VCAP (1982) Co-Investigator, Designed experiment and instruments.
- Long Duration Balloon Flights (1977)
- 3 record setting long duration balloon flights from New Zealand
- Developed modified launch technique to decrease balloon failure probability
- Duration/altitude record of 27.2 km for 121 days still stands
- Hemispherical measurements of ionization rate and conductivity of the air
- Satellite readout of data
- Consulting (partial list)
- (2005-2006). Total Building Systems, LLC
- (2005). Cryodynamics, LLC, Albuquerque, NM. Instrument prototype
- (1995-2001). Numerical modeling, data analysis, forecasting for large, national organization.
- SRI International (1992-1994). Statistical analysis
- Terra-Mar (1987-1989). Remote sensing video system design and hardware
- Titan, Corp. (1986-1988). Laser Investigation Technology Experiment, proposal and program management (successful proposal)
- Thiokol, Corp., Ogden, UT (1972-1973). Sensor technologies
- NASA Program Management
- Program Scientist at NASA HQ (1980-1981)
- Major responsibilities for sounding rocket program and proposal review in Space Plasma Physics Office
- Member, Tethered Satellite System Facility Requirements Definition Team, NASA, 1978
- Member, Proposal evaluation panel, Halley Intercept Mission, NASA, July 1980
- Member, Proposal evaluation panel, Origins of Plasmas in the Earth's Neighborhood, NASA, October 1980
- Member, Management Operations Working Group, Space Plasma Physics Office, NASA Headquarters, 1982
- Member, Spacelab Mission Implementation Cost Assessment (SMICA) Experiments Development Working Group, NASA, 1983
- Member, Spacelab End to End Data Systems Working Group, NASA, 1984
- Member, Core Equipment Definition Team, Tethered Satellite System, NASA
- Member, Space Station Plasma Interactions and Effects Working Group, NASA, 1987-1989
- Member, Review panel for the NASA IN-STEP program proposals, Announcement of Opportunity number OAST 1-89, 1990
- Member, TIMED AO Proposal Review panel, NASA, 1992
- Member, Small Satellites and Infrastructure Committee, Joint Japan/U.S. Committee on Cooperation in Space, 1992-1996
- Member, GP-B Risk Assessment Review Board, 2003
- Member, ST-7/Gravitational Reference Sensor, Peer Review Board, 2003-2004
- Chair, ST-7/Gravitational Reference Sensor, Critical Design Review Peer Review Board, May 10--11, 2004
- Chair, Thermal Evolved Gas Analyzer/Phoenix Mars Polar Lander, Preliminary Design Review Board, May 18--19, 2004
- Chair, Stereo Surface Imager/Phoenix Mars Polar Lander, Preliminary Design Review Board, Sept 29--30, 2004
- Member, Prometheus, Sensor Technology Gateway Peer Review Panel/JPL, November 4, 2004
- Chair, Robotics Arm Camera/Phoenix Mars Polar Lander, Inheritance Review Board, December 10, 2004
- Chair, Thermal Evolved Gas Analyzer/Phoenix Mars Polar Lander, Critical Design Review Board, May 19--20, 2005
- Chair, Surface Stereo Imager/Phoenix Mars Polar Lander, Critical Design Review Board, Aug 18--19, 2005
- Member, Board of Trustees, Austin Rotary Club Foundation, 2010-2012
- Member, Science Advisory Board, Exploration Nation, 2011
American Institute of Aeronautics and Astronautics (AIAA), Senior Member American Geophysical Union (AGU) Institute of Electrical and Electronics Engineers (IEEE), Senior Member International Council on Systems Engineering (INCOSE)
Senior Consultant, BlueShift Consulting, Austin, TX (2010 - present) President, Austin Sensors, LLC, Austin, TX (2000 - present) Senior Research Scientist, Stanford University (1982 - 2000 (retired)) Research Assistant Professor of Physics, Utah State University, Logan, Utah (1976 - 1982) Program Scientist, NASA Headquarters (1980 - 1981) (temporary assignment) Post-doctoral Associate, Applied Physics and Information Sciences Department, University of California, San Diego (1/1974-1976) Research Physicist, Denver Research Institute, Denver, Colorado (1972-12/1973)