1. Aerosciences Branch, NASA Marshall Space Flight Center, Huntsville, Alabama 35812
2. NASA Jet Propulsion Laboratory, Pasadena, California 91109
3. Department of Atmospheric and Space Sciences, University of Michigan, Ann Arbor, Michigan 48109
4. Atmospheric Flight and Entry Systems Branch, Analytical Mechanics Associates, Inc., Hampton, Virginia 23666
5. Lockheed Martin Space Systems, Denver, Colorado 80125
6. Department of Mechanical Engineering, University of Michigan, Ann Arbor, Michigan 48109