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   Scott Striepe

Mars Exploration (General)

Beyond his role as head of the NASA Langely Mars Reconnaissance Orbiter (MRO) technical team, Scott leads the design, development, testing, validation, and verification of trajectory analysis codes to support entry systems at Mars and general aerospace vehicle design, performance, and assessment. He provides models and software changes to support various mission specific requirements. Scott is also the program manager for the Program to Optimize Simulated Trajectories II which is the basis for all entry system trajectory analyses at NASA Langley.

Mars Science Laboratory

Scott leads the nation-wide team responsible for design, development, testing, validation, and verification of the Mars 2009 Science Laboratory entry, descent, and landing (EDL) High Fidelity Engineering (HFE) three and six degree-of-freedom trajectory simulations. As team lead, Scott determines 3DOF and 6DOF simulation products, establishes validation and verification requirements and procedures, as well as assigns subsystem model group deliverables.This team is responsible for including models of over 20 different subsystems in these simulations.

Mars Reconnaissance Orbiter

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Since January 2002, Scott has led the technical team of NASA Langley engineers providing engineering evaluation and simulation in the areas of aerodynamics, aerothermodynamics, thermal analysis, and flight mechanics for the aerobraking phase. As an integral part of the Jet Propulsion Laboratory Mars Reconnaissance Orbiter (MRO) Navigation team, the NASA Langley team has been tasked during aerobraking operations with evaluating and validating that the MRO spacecraft will meet final orbital constraints while remaining within defined thermal constraints during atmospheric passage.

Mars Exploration Rover Mission

Scott led a team of four engineers that provided independent validation, verification, and assessment of NASA Langley simulation models used for design and operations during the entry, descent, and landing phase of the Mars Exploration Rover (MER) mission. These models included (but were not limited to) the mulitbody parachute model (and associated input data) aerodynamic models, TIERS propulsion models, and coordinate frame transformations. Additionally, as part of his Ph.D. dissertation research, Scott is reconstructing entry trajectories using various techniques and developed Program to Optimize Simulated Trajectories II reconstruction modules in conjunction with the entry, descent and landing simulation developed to support MER entry.

Mars Odyssey

Scott led the NASA Langley internal validation and verification of the aerobraking trajectory simulation based on the Program to Optimize Simulated Trajectories. He was also a backup member of the flight mechanics team.

Mars Polar Lander

Scott provided support for NASA Langley day of entry six degree-of-freedom monte carlo runs and footprint generation. He independently determined the attitude quaternion for zero angle of attack just prior to entry during entry, descent and landing operations.

Scott Striepe:
  Background Information
  Contributions to Mars Exploration
  Personal Reflections