OSIRIS-REx, Bennu Sample Curatorial Dataset

The contents of this dataset primarily stem from the initial and detailed description work conducted as part of the Bennu sample curation led by the Astromaterials Science Research Group (ASRG). OSIRIS-REx (Origins, Spectral Interpretation, Resource Identification, and Security-Regolith Explorer) is NASA's first asteroid sample return mission, launched in 2016. The OSIRIS-REx spacecraft collected samples from the B-type near-Earth asteroid (101955) Bennu [1]. In August 2024, the Japan Aerospace Exploration Agency (JAXA) received approximately 0.5 wt % of the total Bennu sample mass (equivalent to 6.6 g) from NASA. These samples were then curated in JAXA's curation facility [2]. A series of initial descriptions were carried out in a clean chamber, free from contaminants such as air or dust, and the results are cataloged in this dataset. This dataset includes measurements taken using an optical microscope, balance, a Fourier Transform Infrared (FTIR) Spectrometer, a hyperspectral infrared imaging system called MicrOmega [3, 4], and an optical multi-band imager with filters compatible with the telescopic optical navigation camera (ONC-T) onboard the Hayabusa2 spacecraft [5, 6, 7].

## Measurement Methods

- Optical microscope: VHX-8000 (Keyence Co., Ltd.)
- Balance: AD4212D-33S (A & D Co., Ltd.)
- Micro-Fourier Transform Infrared Spectroscopy (micro-FTIR): VIR-200 and IRT-5200 (JASCO Co., Ltd.)
- MicrOmega: A Near Infrared (NIR) hyperspectral microscope developed at the Institut d'Astrophysique Spatiale (Orsay, France).
- Microscopic COlor and SHape Imager (MICOSHI): A visible multispectral imaging system with six bandpass filters (center wavelengths of 388, 475, 551, 588, 699, 852 nm) (Cho et al., 2022). Detailed calibration and error analysis of the MICOSHI system are provided by Yumoto et al. (2024).

### Request for using this data

Requests when using this data, please cite the paper:

> "Astromaterials Science Research Group, Institut d'Astrophysique Spatiale, Université Paris-Saclay, CNES, S. Nakahara, K. Shimokoshi, K. Yumoto, S. Hayashi, S. Mori, Y. Aikyo, Y. Cho, S. Sugita (2025) OSIRIS-REx Bennu Sample Curatorial Dataset. doi: https://doi.org/10.17597/ISAS.DARTS/CUR-Bennu-description"

本数据集的内容主要源自天体物质科学研究组（Astromaterials Science Research Group, ASRG）主导的贝努样本整理工作中的初始详细描述工作。OSIRIS-REx（起源、光谱解析、资源识别与安全-风化层探测器，Origins, Spectral Interpretation, Resource Identification, and Security-Regolith Explorer）是美国国家航空航天局（NASA）的首个小行星样本返回任务，于2016年发射。OSIRIS-REx探测器从B型近地小行星（101955）贝努（Bennu）采集了样本[1]。2024年8月，日本宇宙航空研究开发机构（Japan Aerospace Exploration Agency, JAXA）从NASA处接收了约占贝努总样本质量0.5 wt%（折合6.6克）的样本，随后这些样本被保藏于JAXA的样本整理设施中[2]。研究团队在无空气、尘埃等污染物的洁净舱内开展了一系列初始描述工作，相关结果已编入本数据集。

本数据集涵盖使用光学显微镜、天平、傅里叶变换红外（Fourier Transform Infrared, FTIR）光谱仪、名为MicrOmega的高光谱红外成像系统[3, 4]，以及适配隼鸟2号（Hayabusa2）探测器搭载的 telescopic optical navigation camera（ONC-T）的滤光片式光学多波段成像仪开展的测量工作[5, 6, 7]。

### 测量方法
- 光学显微镜：VHX-8000（基恩士株式会社）
- 天平：AD4212D-33S（A & D株式会社）
- 显微傅里叶变换红外光谱（micro-FTIR）：VIR-200与IRT-5200（日本分光株式会社，JASCO Co., Ltd.）
- MicrOmega：由法国奥赛天体物理研究所开发的近红外（Near Infrared, NIR）高光谱显微镜。
- 显微色彩与形状成像仪（Microscopic COlor and SHape Imager, MICOSHI）：一款搭载6个带通滤光片的可见光谱多波段成像系统，中心波长分别为388、475、551、588、699、852 nm（Cho等，2022）。MICOSHI系统的详细校准与误差分析由Yumoto等（2024）提供。

### 数据使用要求
使用本数据集时，请引用以下论文：
> "Astromaterials Science Research Group, Institut d'Astrophysique Spatiale, Université Paris-Saclay, CNES, S. Nakahara, K. Shimokoshi, K. Yumoto, S. Hayashi, S. Mori, Y. Aikyo, Y. Cho, S. Sugita (2025) OSIRIS-REx Bennu Sample Curatorial Dataset. doi: https://doi.org/10.17597/ISAS.DARTS/CUR-Bennu-description"

搜集汇总

背景与挑战

背景概述

该数据集记录了NASA OSIRIS-REx任务从小行星Bennu采集的样本的初步描述和测量数据，包括光学显微镜、FTIR光谱仪和MicrOmega等多种仪器的测量结果。数据由JAXA的洁净室进行保管和初步分析，旨在支持行星科学和太阳系物质科学研究。