JAQAR Astrodynamics Package - ESA

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DATO Capability• Preliminary assessment of both ascent and descenttrajectories from and to a generic planet, offering theopportunity to optimise the vehicle configuration andperformance, and to test some mission critical aspects.• Relevant results on the trajectory to put a wanted payloadin orbit or to land on a planet with the wanted MECO (MainEngine Cut-Off) velocity, can be generated, analysed andgraphically visualised.
DATO Software Structure(1/2)DATO is principally built on a structure of the following 5 Units:1. Main: to generate and manage the User interface;2. Thread: DE optimisation loops;3. DE Interface: Fitness function and some procedures to formulate thePhysics of the problem;4. RKN Propagation: numerical integration to propagate the trajectory;5. Derivative: Equations of Motion and evaluation of the principal flightparameters.Several additional secondary Units are used to support the primary unitsand to implement procedures, such as trajectory plots, data visualisation,genetic algorithms evaluation (crossover, mutation, selection).
Page 1 and 2: JAQAR Astrodynamics PackageTools fo
Page 3 and 4: Features• Dedicated tools for ded
Page 5: DATODescent & Ascent Trajectory Opt
Page 9 and 10: DATO Optimisation MethodGenetic Alg
Page 11 and 12: DATO Problem ModellingAscent Trajec
Page 13 and 14: DATO Problem ModellingAscent Trajec
Page 15 and 16: DATO Problem ModellingDescent Traje
Page 17 and 18: R # x $ y02 2DATO Problem Modelling
Page 19 and 20: R # x $ y02 2DATO Test CasesAscent
Page 21 and 22: R # x $ y02 2DATO Test CasesDescent
Page 23 and 24: R # x $ y02 2DATO Conclusions (1/2)
Page 25 and 26: JAQAR and STK• JAQAR and engineer
Page 27: Questions?For more information:•

JAQAR Astrodynamics Package - ESA

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