Mayumi Ichikawa

Updated in-flight calibration of the Hayabusa2/NIRS3 spectrometer: new global near-infrared photometric properties of asteroid (162173) Ryugu

Antonin Wargnier, Eri Tatsumi, Koki Yumoto, Mayumi Ichikawa et autres

The Near InfraRed Spectrometer (NIRS3) onboard Hayabusa2 observed asteroid (162173) Ryugu, searching especially for signatures of water-bearing minerals. However, during the mission, absolute reflectance measured by the Telescopic Optical Navigation Camera (ONC-T) and NIRS3 showed a systematic offset. Additionally, touchdown operations have …

Photometrically-corrected M3 reflectance lunar maps for "Updated in-flight calibration of the Hayabusa2/NIRS3 spectrometer: new global near-infrared photometric properties of asteroid (162173) Ryugu"

Antonin Wargnier, Eri Tatsumi, Koki Yumoto, Mayumi Ichikawa et autres

The datasets contain the data from the paper ‌"Updated in-flight calibration of the Hayabusa2/NIRS3 spectrometer: new global near-infrared photometric properties of asteroid (162173) Ryugu" (PSJ, 2026). The data include two photometrically-corrected (i = 30 deg, e = 0 deg, phase = 30 …

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Photometrically-corrected M3 reflectance lunar maps for "Updated in-flight calibration of the Hayabusa2/NIRS3 spectrometer: new global near-infrared photometric properties of asteroid (162173) Ryugu"

Antonin Wargnier, Eri Tatsumi, Koki Yumoto, Mayumi Ichikawa et autres

The datasets contain the data from the paper ‌"Updated in-flight calibration of the Hayabusa2/NIRS3 spectrometer: new global near-infrared photometric properties of asteroid (162173) Ryugu" (PSJ, 2026). The data include two photometrically-corrected (i = 30 deg, e = 0 deg, phase = 30 …

jp, es (code pays fourni par la source)

JADE2: a system for the search and visualization of Hayabusa2 scientific data (updates in 2026)

Eri Tatsumi, Mayumi Ichikawa, Yasuhiro Yokota, Daigo Shoji et autres

The Hayabusa2 International Visibility Enhancement Project is engaged in activities to ensure that the scientific data returned by JAXA's Hayabusa2 mission are openly disclosed and accessible to both professional researchers and the general public. The observation data of the near-Earth asteroid (162173) …

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Calibration update of the NIRS3 spectrometer and global near-infrared photometric properties of asteroid (162173) Ryugu: application for the Hayabusa2# extended mission

Antonin Wargnier, Eri Tatsumi, Koki Yumoto, Mayumi Ichikawa et autres

Asteroid (162173) Ryugu, visited by the JAXA Hayabusa2 mission, was extensively observed during the proximity phase with the NIRS3 near-infrared spectrometer (1.8 – 3.2 mm) [1,2]. The radiometric calibration of NIRS3 was initially obtained from ground-based measurements of a commercial blackbody. After …

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Bundle adjustment of Hayabusa2's ONC images and controlled color mosaic map of Ryugu

Naoyuki Hirata, Eri Tatsumi, Mayumi Ichikawa, Kazuhiro Honda et autres

JAXA's Hayabusa2 mission successfully returned samples from the asteroid Ryugu in December 2020. It executed two touchdowns to collect the surface and subsurface materials, one close to the crater created by an artificial impactor. The onboard camera system, Optical Navigation Camera (ONC), …

Bundle adjustment of Hayabusa2's ONC images and controlled color mosaic map of Ryugu

Naoyuki Hirata, Eri Tatsumi, Mayumi Ichikawa, Kazuhiro Honda et autres

This dataset contains all GeoTIFF map files created from Hayabusa2's ONC images and mosaics combined from the maps, along with camera image geometry information. Please See ReadMeFirst.pptx and ReadMeSecond.txt: wget https://dataverse.harvard.edu/api/access/datafile/13463835 -O ReadMeFirst.pptx wget https://dataverse.harvard.edu/api/access/datafile/13463837 -O ReadMeSecond.txt

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Photometric properties of craters and boulders on Ryugu from Hayabusa2/NIRS3 observations

Antonin WARGNIER, Eri Tatsumi, Koki Yumoto, Mayumi Ichikawa et autres

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Enhancing Visibility of Hayabusa2 Mission Data

Eri Tatsumi, Mayumi Ichikawa, Kazuhiro Honda, Daigo Shoji et autres

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Quality Improvements of ‘AW3D’ Global Dsm Derived from Alos Prism

Junichi Takaku, Takeo Tadono, K. Tsutsui, Mayumi Ichikawa

In 2016 we first completed the global data processing of digital surface models (DSMs) by using the whole archives of stereo images derived from the Panchromatic Remote-sensing Instrument for Stereo Mapping (PRISM) onboard the Advanced Land Observing Satellite (ALOS). The dataset has …

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Overview of AW3DTM Global 3D Map Service

K. Tsutsui, Mayumi Ichikawa, Junichi Takaku

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VALIDATION OF "AW3D" GLOBAL DSM GENERATED FROM ALOS PRISM

Junichi Takaku, Takeo Tadono, K. Tsutsui, Mayumi Ichikawa

Abstract. Panchromatic Remote-sensing Instrument for Stereo Mapping (PRISM), one of onboard sensors carried by Advanced Land Observing Satellite (ALOS), was designed to generate worldwide topographic data with its optical stereoscopic observation. It has an exclusive ability to perform a triplet stereo observation …

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