The University of Texas at Austin
College of Engineering

Orbital Mechanics

This area involves study and research in the applications of celestial mechanics, analytical dynamics, geophysics, numerical analysis, optimization theory, estimation theory, mathematics, and computer technology to model the dynamic behavior of natural and artificial bodies in the solar system. Research is supported by a large database of satellite measurements and a variety of computers, including a workstation cluster and a Cray high-performance computer. Two areas of interest are satellite applications and spacecraft design.

Satellite applications involve the study of active and passive satellite remote sensing for research in earth, ocean, atmospheric, and planetary science; satellite positioning, primarily using the Global Positioning System (GPS) for earth science research; and satellite tracking and instrumentation, including altimeters, for a variety of geophysical and geodetic studies, including the study of Earth's gravity field and rotation. Research is supported by a large database of satellite remote sensing measurements, a variety of computer workstations, GPS receivers, and image processing equipment.

Spacecraft design involves the application of all disciplines of aerospace engineering to the design of aerospace vehicles, missions, and related systems. Experimental facilities include a satellite laboratory containing high gain antenna satellite tracking station and a clean room area for fabrication and testing of space flight hardware. Research is primarily applied in nature and involves the synthesis of information from all engineering disciplines, mathematics, the natural sciences, economics, project management, and public policy.


Faculty:

Sean Buckley:

  • Synthetic Aperture Radar Interferometry
  • Remote Sensing
  • Satellite Applications


Wallace Fowler:

  • Spacecraft and Mission Design, Aircraft Design
  • Vehicle Modeling, Lunar and Planetary Exploration Systems
  • Multimedia Engineering Education

Todd Humphreys:

  • Estimation and Filtering
  • Satellite Navigation Technology and Security
  • Software-defined Radio


Glenn Lightsey:

  • Vehicle Dynamics and Control
  • Relative Navigation and Control of Multiple Vehicles
  • Global Positioning System


Hans Mark:

  • Tilt-rotor Aircraft Applications
  • Hypervelocity Impact Physics
  • Prevention of Nuclear Weapons Proliferation


Cesar Ocampo:

  • Astrodynamics and Celestial Mechanics
  • Spacecraft Trajectory Optimization in Multibody Gravity Fields
  • Mission Design and Analysis for Multiple Spacecraft Missions
  • Dynamical Systems
  • Numerical Methods


Bob Schutz:

  • Spaceborne laser altimetry, especially GLAS on ICESat
  • Airborne laser altimetry
  • Space Geodesy, including Global Positioning System (GPS) and laser ranging
  • Spacecraft dynamics, including orbit and attitude determination
  • Satellite mission design
  • Applications of satellites to Earth system studies


Byron Tapley:

  • Orbital Mechanics
  • Satellite Orbit Determination
  • Earth Satellite Applications