.Principal Guidance, Ames Research CenterDan Hymer (Performing).Main Advice, Armstrong Tour Analysis CenterBrett Swanson.Principal Guidance, Glenn Callista M. Puchmeyer.Chief Counsel, Goddard Area Flight CenterDave G. Barrett.Principal Advice, Johnson Area CenterRandall T. Suratt (Acting).Chief Guidance, Kennedy Area CenterAlex Vinson.Chief Guidance, Langley Analysis CenterAndrea Z. Warmbier.Chief Guidance, Marshall Area Tour CenterPam A. Bourque.Main Advise, NASA Administration Workplace at JPL James T. Mahoney.Principal Advise, NASA Shared Company Center Ron Bald.Chief Advice, NASA Stennis Room Center Ron Bald.