Hydrothermal alteration of Ryugu from a disruptive impact recorded in a returned sample [PDF]
Nature CommunicationsSamples returned from C-type asteroid (162173) Ryugu by JAXA’s Hayabusa2 spacecraft provide material free of terrestrial alteration for analysis. Previous work shows that Ryugu was aqueously altered below 100 °C under neutral to alkaline fluid conditions.
Devin L. Schrader +3 more
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Earth, Planets and Space, 2023 Developing a cleanroom and clean chambers (CCs) for Hayabusa2 returned samples has been discussed with the committee for Hayabusa2 sample curation facility since 2015.
Toru Yada +33 more
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Spectrally blue hydrated parent body of asteroid (162173) Ryugu [PDF]
Nature Communications, 2021 Both poles of asteroid Ryugu, the target of space mission Hayabusa2, preserve the least processed material by space weathering. Here, the authors show detection of 700 nm absorption band in the polar spectra of Ryugu, that allows to constrain the ...
Eri Tatsumi +48 more
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Ground-based Characterization of (98943) Torifune 2001 CC21, the Target of the Hayabusa2# Space Mission [PDF]
The Planetary Science JournalThe near-Earth asteroid (98943) Torifune, previously designated 2001 CC _21 , is the flyby target of the Hayabusa2 extended mission, nicknamed Hayabusa2 # (Small Hazardous Asteroid Reconnaissance Probe (SHARP)).
Marcel M. Popescu +13 more
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Near-infrared spectral variation in Ryugu particles and implication for rapid space weathering by solar UV radiation [PDF]
Scientific ReportsThe 2.7 µm absorption band, represented by OH groups, in the near-infrared reflectance spectra of primitive Solar System bodies could be an indicator of the cause and degree of space weathering.
S. Furukawa +27 more
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Ground-based characterization of Hayabusa2 mission target asteroid 162173 Ryugu: constraining mineralogical composition in preparation for spacecraft operations [PDF]
, 2017 Asteroids that are targets of spacecraft missions are interesting because they present us with an opportunity to validate ground-based spectral observations. One such object is near-Earth asteroid (NEA) (162173) Ryugu, which is the target of the Japanese
L. Le Corre +9 more
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An evaluation method of reflectance spectra to be obtained by Hayabusa2 Near-Infrared Spectrometer (NIRS3) based on laboratory measurements of carbonaceous chondrites [PDF]
Earth, Planets and Space, 2017 We conducted ground-based performance evaluation tests of the Near-Infrared Spectrometer (NIRS3) onboard Hayabusa2 spacecraft in November 2013 and from April to May 2014 and established a method for evaluating its measured reflectance spectra ...
Moe Matsuoka +12 more
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Keck and Gemini Characterization of Hayabusa2# Rendezvous Target 1998 KY26
The Astronomical JournalNear-Earth object (NEO) 1998 KY _26 is a target of the Hayabusa2# spacecraft, which it will rendezvous with in 2031 July. The asteroid has been noted to rotate rapidly and has a large out-of-plane nongravitational acceleration.
Bryce T. Bolin +9 more
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Variations of organic functional chemistry in carbonaceous matter from the asteroid 162173 Ryugu [PDF]
Nature CommunicationsPrimordial carbon delivered to the early earth by asteroids and meteorites provided a diverse source of extraterrestrial organics from pre-existing simple organic compounds, complex solar-irradiated macromolecules, and macromolecules from extended ...
Bradley De Gregorio +58 more
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Rare earth element identification and quantification in millimetre-sized Ryugu rock fragments from the Hayabusa2 space mission [PDF]
Earth, Planets and Space, 2022 Millimetre-sized primordial rock fragments originating from asteroid Ryugu were investigated using high energy X-ray fluorescence spectroscopy, providing 2D and 3D elemental distribution and quantitative composition information on the microscopic level ...
Pieter Tack +37 more
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