39th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit · 2003 · 43 citations · 1 references
Natural SciencesAerospace EngineeringAstronomyAtmospheric DynamicsAtmospheric SciencePlanetary ScienceAtmospheric Equations Of MotionClimate ModelingData AssimilationModel Physics ParameterizationMonte Carlo SimulationPlanetary AtmospheresAerocaptureAerocapture TrajectoriesAerocapture Trajectory DesignControl AlgorithmsExoplanet Atmosphere ModelingModel AtmospheresNumerical Thermal ModelsQuasi-random Variation
Engineering-level atmospheric models for Titan and Neptune have been developed for use in NASA s systems analysis studies of aerocapture applications in missions to the outer planets. Analogous to highly successful Global Reference Atmospheric Models for Earth (GRAM, Justus et al., 2000) and Mars (Mars-GRAM, Justus and Johnson, 2001, Justus et al., 2002) the new models are called Titan-GRAM and Neptune-GRAM. Like GRAM and Mars-GRAM, an important feature of Titan-GRAM and Neptune-GRAM is their ability to simulate quasi-random perturbations for Monte- Carlo analyses in developing guidance, navigation and control algorithms, and for thermal systems design.
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