This archive contains images and spectral data of asteroid Ryugu used to produce the the results presented in the paper "Spectrally blue hydrated parent body of asteroid (162173) Ryugu" by Tatsumi et al. (2021). It is provided "as is" without warranty of any kind, either express or implied.
ONC-T images and related files used. General description of the ONC-T data is found at http://darts.isas.jaxa.jp/planet/project/hayabusa2/
All ONC-T images during the mission phase will soon to be available in PDS (https://sbn.psi.edu/pds/resource/hayabusa2/).
Files are contained in the observation date folders. Each file contains 7 band filter images in order of wavelength, i.e. ul, b, v, Na, w, x, and p. Each file is array size of (7, 1024, 1024).
Please refer to Supplementary Table 1 for correspondance of image ids and figures.
Each file contains spectral feature index images in order of I/F at v-band, b-to-x slope (1/um), 0.7-um band depth, uv-index, photon dose, and photon dose (binned). Each file is array size of (6, 1024, 1024).
Raw and calibrated NIRS3 data during the mission phase are archived in PDS (https://sbn.psi.edu/pds/resource/hayabusa2/nirs3.html).
data_figure3_N(1).csv: The NIRS3 reflectance spectra normalized at 2.5 um in the panel N=a, b, or c. The first column is the wavelength, the second column is reflectance (black), the third column is the standard deviation (black), the fourth column is the reflectance (red) and the fifth column is the standard deviation (red).
data_figure3_N(2).csv: The NIRS3 continuum removed reflectance spectra in the panel N=a, b, or c. The first column is the wavelength, the second column is reflectance (black), the third column is the standard deviation (black), the fourth column is the reflectance (red) and the fifth column is the standard deviation (red).
data_figure3_N(3)black.csv: The NIRS3 2.7-um band absorption values (black) in the panel N=a, b, or c.
data_figure3_N(3)red.csv: The NIRS3 2.7-um band absorption values (red) in the panel N=a, b, or c.
The shape model and kernels used for this study was included in the zip file below. Please refer to README.txt file for more details on using the code. Other SPICE kernels during the mission phase will soon to be available in PDS (https://sbn.psi.edu/pds/resource/hayabusa2/). In need of thermal calculation used in Figure 5 and 6, please contact Naoya Sakatani (sakatani@rikkyo.ac.jp)
Please readme in the file to use the code.
This document was preparerd by Eri Tatsumi, Instituto de Astrofisica de Canarias (etatsumi@iac.es) on Sept. 1, 2021.