Results 11 to 20 of about 296 (155)

A primordial noble gas component discovered in the Ryugu asteroid and its implications [PDF]

open access: yesNature Communications
Ryugu is the C-type asteroid from which material was brought to Earth by the Hayabusa2 mission. A number of individual grains and fine-grained samples analysed so far for noble gases have indicated that solar wind and planetary (known as P1) noble gases ...
Alexander B. Verchovsky   +35 more
doaj   +2 more sources

Hayabusa2 Mission Overview [PDF]

open access: yesSpace Science Reviews, 2017
The Hayabusa2 mission journeys to C-type near-Earth asteroid (162173) Ryugu (1999 JU3) to observe and explore the 900 m-sized object, as well as return samples collected from the surface layer. The Haybusa2 spacecraft developed by Japan Aerospace Exploration Agency (JAXA) was successfully launched on December 3, 2014 by an H-IIA launch vehicle and ...
Sei-ichiro Watanabe   +5 more
  +5 more sources

The Formation of a Rubble Pile Asteroid: Insights from the Asteroid Ryugu

open access: yesUniverse, 2023
The Hayabusa2 mission returned primitive samples from the C-type asteroid Ryugu to Earth. The C-type asteroids hold clues to the origin of Earth’s water and the building blocks of life.
Tsutomu Ota   +8 more
doaj   +1 more source

A curation for uncontaminated Hayabusa2-returned samples in the extraterrestrial curation center of JAXA: from the beginning to present day

open access: yesEarth, 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
doaj   +1 more source

Derivation of 1.064 μm normal albedos on the C-type asteroid Ryugu from laser pulse intensity measurement of the Hayabusa2 LIDAR

open access: yesEarth, Planets and Space, 2022
Japanese asteroid explorer Hayabusa2 arrived at C-type asteroid 162,173 Ryugu in June 2018. The laser altimeter (LIDAR) onboard Hayabusa2 measured its own transmitted laser and returned pulse intensities from a Ryugu surface until November 2019.
Ryuhei Yamada   +12 more
doaj   +1 more source

Inflight calibration of the optical navigation camera for the extended mission phase of Hayabusa2

open access: yesEarth, Planets and Space, 2023
After delivering its sample capsule to Earth, the Hayabusa2 spacecraft started its extended mission to perform a flyby of asteroid 2001 CC21 in 2026 and rendezvous with asteroid 1998 KY26 in 2031.
Manabu Yamada   +19 more
doaj   +1 more source

Trace-element analysis of mineral grains in Ryugu rock fragment sections by synchrotron-based confocal X-ray fluorescence

open access: yesEarth, Planets and Space, 2022
A fundamental parameter-based quantification scheme for confocal XRF was applied to sub-micron synchrotron radiation X-ray fluorescence (SR-XRF) data obtained at the beamline P06 of the Deutsches Elektronen-Synchrotron (DESY, Hamburg, Germany) from two ...
Benjamin Bazi   +38 more
doaj   +1 more source

Dynamic precise orbit determination of Hayabusa2 using laser altimeter (LIDAR) and image tracking data sets

open access: yesEarth, Planets and Space, 2020
The precise orbit of the Hayabusa2 spacecraft with respect to asteroid Ryugu is dynamically determined using the data sets collected by the spacecraft’s onboard laser altimeter (LIght Detection And Ranging, LIDAR) and automated image tracking (AIT).
Keiko Yamamoto   +37 more
doaj   +1 more source

Geometric correction for thermographic images of asteroid 162173 Ryugu by TIR (thermal infrared imager) onboard Hayabusa2

open access: yesEarth, Planets and Space, 2021
The thermal infrared imager (TIR) onboard the Hayabusa2 spacecraft performed thermographic observations of the asteroid 162173 Ryugu (1999 JU $$_3$$ 3 ) from June 2018 to November 2019. Our previous reports revealed that the surface of Ryugu was globally
Takehiko Arai   +12 more
doaj   +1 more source

Alignment determination of the Hayabusa2 laser altimeter (LIDAR)

open access: yesEarth, Planets and Space, 2021
In this study, we determined the alignment of the laser altimeter aboard Hayabusa2 with respect to the spacecraft using in-flight data. Since the laser altimeter data were used to estimate the trajectory of the Hayabusa2 spacecraft, the pointing ...
Hirotomo Noda   +51 more
doaj   +1 more source

Home - About - Disclaimer - Privacy