WIDE-FIELD INFRARED SURVEY TELESCOPE AND STARSHADE FORMATION FLYING DYNAMICS AT SUN-EARTH L2

dc.contributor.authorFarres, Ariadna
dc.contributor.authorWebster, Cassandra M.
dc.date.accessioned2018-12-18T16:13:41Z
dc.date.available2018-12-18T16:13:41Z
dc.date.issued2018-10-01
dc.description69th International Astronautical Congress 2018, Bremen, Germany
dc.description.abstractThe formation flying of an occulter with a telescope at the Sun-Earth L2 (SEL2) Libration Point can be a challenging problem. A good knowledge of the Restricted Three Body Problem dynamics is required to understand how these two spacecraft interact with each other in the SEL2 unstable environment, and how other perturbations such as Solar Radiation Pressure (SRP) affect their mutual trajectories. This paper focuses on the transfer trajectories to achieve specific relative positions between two spacecraft as they fly in formation at SEL2, andanalyzes the relevance of SRP in this formation, using the Wide-Field Infrared Survey Telescope (WFIRST) and the Starshade occulter as an example. Given that WFIRST and Starshade have very different area-to-mass ratios, SRP will affect their motion in different ways, and their relative position can be key to reduce the ΔV cost. In this paper we intend on providing an explanation on how the relative position between both spacecrafts affects the transfer ΔV from one observation to the other using dynamical system theory and Floquet modes.en_US
dc.description.sponsorshipThe work has been funded under the Goddard Planetary Heliophysics Institute Task 595.001 in collaboration with the University of Maryland Baltimore County (UMBC) under the NNG11PL02A.en_US
dc.description.urihttps://mdsoar.org/bitstream/handle/11603/12093/20180007025.pdf?sequence=1en_US
dc.format.extent14 pagesen_US
dc.genreconference papers and proceedingsen_US
dc.identifierdoi:10.13016/M2H70846Q
dc.identifier.urihttp://hdl.handle.net/11603/12293
dc.language.isoen_USen_US
dc.relation.isAvailableAtThe University of Maryland, Baltimore County (UMBC)
dc.relation.ispartofUMBC Goddard Planetary Heliophysics Institute (GPHI)
dc.relation.ispartofUMBC Faculty Collection
dc.rightsThis item is likely protected under Title 17 of the U.S. Copyright Law. Unless on a Creative Commons license, for uses protected by Copyright Law, contact the copyright holder or the author.
dc.rightsPublic Domain Mark 1.0*
dc.rightsThis work was written as part of one of the author's official duties as an Employee of the United States Government and is therefore a work of the United States Government. In accordance with 17 U.S.C. 105, no copyright protection is available for such works under U.S. Law.
dc.rights.urihttp://creativecommons.org/publicdomain/mark/1.0/*
dc.titleWIDE-FIELD INFRARED SURVEY TELESCOPE AND STARSHADE FORMATION FLYING DYNAMICS AT SUN-EARTH L2en_US
dc.typeTexten_US

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