System requirements analysis for JAXA's contribution to Comet Interceptor mission: autonomous navigation, guidance and attitude control for a hyperbolic comet fly-by

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dc.contributor.authorMachuca, Pablo
dc.contributor.authorOzaki, Naoya
dc.contributor.authorSánchez, Joan-Pau
dc.contributor.authorFelicetti, Leonard
dc.contributor.authorFunase, Ryu
dc.date.accessioned2020-10-26T12:15:44Z
dc.date.available2020-10-26T12:15:44Z
dc.date.issued2020-10-14
dc.description.abstractComet Interceptor, to be launched in 2028, is a recently-selected ESA/JAXA mission aimed to perform the first fly-by of a pristine long-period comet. As part of the mission’s Phases A/B (feasibility analysis and preliminary design), this work preliminarily analyzes the attitude performance of JAXA’s contribution to the mission, SC B1: one of the two small-spacecraft piggybacked along with ESA’s main spacecraft. This study primarily focuses on the characterization of the dust environment, modelization of dust particle impacts, and analysis of attitude performance through the dust environment. Monte Carlo simulations are implemented to assess the performance of the attitude control system within a highly-active dust environment, for various fly-by altitudes and a worst-case 70-km/s fly-by speed. Results evidence the need for a wide-angle camera, and conclude that image acquisition shall tolerate angular velocities of several degrees per second. Solutions for improved attitude performance are also evaluated (i.e., upgrading of reaction wheels and angular momentum pre-loading), and a larger reaction wheels aligned with the camera line of sight is shown to provide largest performance improvements. Such strategies, nevertheless, still result in pointing errors and angular velocities that are only compatible with a short-exposure, wide-angle science cameraen_UK
dc.identifier.citationMachuca P, Ozaki N, Sanchez Cuartielles JP, et al., (2020) System requirements analysis for JAXA's contribution to Comet Interceptor mission: autonomous navigation, guidance and attitude control for a hyperbolic comet fly-by. In: 71st International Astronautical Congress - the Cyberspace Edition, 12-14 October 2020, Onlineen_UK
dc.identifier.urihttps://iafastro.directory/iac/paper/id/60086/summary/
dc.identifier.urihttp://dspace.lib.cranfield.ac.uk/handle/1826/15915
dc.language.isoenen_UK
dc.publisherIACen_UK
dc.rightsAttribution 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/*
dc.subjectsystem requirementsen_UK
dc.subjectattitude controlen_UK
dc.subjectcomet fly-byen_UK
dc.subjectComet Interceptoren_UK
dc.titleSystem requirements analysis for JAXA's contribution to Comet Interceptor mission: autonomous navigation, guidance and attitude control for a hyperbolic comet fly-byen_UK
dc.typeConference paperen_UK

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