The Near-Earth Asteroid Characterization and Observation (NEACO) mission

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dc.contributor.authorVenigalla, Chandrakanth
dc.contributor.authorBaresi, Nicola
dc.contributor.authorAziz, Jonathan
dc.contributor.authorBercovici, Benjamin
dc.contributor.authorMotta, Gabriel Borderes [UNESP]
dc.contributor.authorBrack, Daniel
dc.contributor.authorDos Santos, Josué Cardoso [UNESP]
dc.contributor.authorDahir, Andrew
dc.contributor.authorDavis, Alex B.
dc.contributor.authorDe Smet, Stijn
dc.contributor.authorFulton, JoAnna
dc.contributor.authorParrish, Nathan
dc.contributor.authorPellegrino, Marielle
dc.contributor.authorVan Wal, Stefaan
dc.contributor.institutionUniversity of Colorado
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2018-12-11T16:54:13Z
dc.date.available2018-12-11T16:54:13Z
dc.date.issued2018-01-01
dc.description.abstractThe Near-Earth Asteroid Characterization and Observation (NEACO) mission proposes to explore the fast-rotating asteroid (469219) 2016 HO3 with a SmallSat spacecraft and perform an early scientific investigation to enable future, more in-depth missions. The NEACO spacecraft is equipped with a low-thrust, solar electric propulsion system to reach its target within two years, making use of an Earth gravity assist. Its instrument suite consists of two optical cameras, a spectrometer, an altimeter, and an explosive impactor assembly. Upon arrival at HO3, NEACO uses pulsed plasma thrusters to hover, first at a high altitude of 50 km to perform lit surface mapping and shape modeling, and later at a lower altitude of 10 km to refine these models and perform surface spectroscopy. Following the hovering phases, the spacecraft performs several flybys with decreasing periapses in order to estimate the asteroid’s mass. Finally, NEACO uses an additional flyby to release an explosive impactor that craters the asteroid surface. After spending a few weeks at a safe hovering distance, the spacecraft returns and images the crater and freshly exposed sub-surface material. This provides information on the strength of the asteroid surface. The science operations are completed within eight months, with the total mission lasting less than three years. The objectives met by the NEACO mission satisfy all science goals for the student competition of the 2017 AAS Astrodynamics Specialist Conference.en
dc.description.affiliationSmead Department of Aerospace Engineering Sciences University of Colorado
dc.description.affiliationDepartment of Physics São Paulo State University (UNESP)
dc.description.affiliationUnespDepartment of Physics São Paulo State University (UNESP)
dc.format.extent3543-3576
dc.identifier.citationAdvances in the Astronautical Sciences, v. 162, p. 3543-3576.
dc.identifier.issn0065-3438
dc.identifier.scopus2-s2.0-85049374318
dc.identifier.urihttp://hdl.handle.net/11449/171167
dc.language.isoeng
dc.relation.ispartofAdvances in the Astronautical Sciences
dc.relation.ispartofsjr0,187
dc.rights.accessRightsAcesso aberto
dc.sourceScopus
dc.titleThe Near-Earth Asteroid Characterization and Observation (NEACO) missionen
dc.typeTrabalho apresentado em evento

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