- DOI
- 10.26302/SSHADE/EXPERIMENT_ZED_20230921_01
- Data reference
- Dionnet, Zélia; Brunetto, Rosario; Rubino, Stefano (2021): MIR Average reflectance spectra of eight Ryugu fragments (chambers A and C). SSHADE/DAYSY (OSUG Data Center). Dataset/Spectral Data. https://doi.org/10.26302/SSHADE/EXPERIMENT_ZED_20230921_01
- Publications
- Database(s)
- Experimentalists
- Type(s)
- laboratory measurement
- Description
- MIR spectroscopy average reflectance spectra of eight Ryugu micrometrique fragments collected at different angles
- Number of spectra
- 8
- Variable type(s)
-
- sample composition
- Laboratory
- Institut d'Astrophysique Spatiale (IAS)
- Instrument
- SMIS Cary 670 - trans Mid-IR
- Sample holder
- The sample was mounted at the end of a metallic needle which hold the sample horizontally.
- Standard medium
- vacuum
- Observation mode
- spectrum
- Spectral range type(s)
- MIR
- Valid spectral range(s)
-
Min - Max ($cm^{-1}$) Sampling ($cm^{-1}$) Resolution ($cm^{-1}$) Position accuracy ($cm^{-1}$) Absorption edge #1 820.0 - 3900.0 4.0 4.0 1.0
Definition: incidence and emergence angles are positive with origin at nadir. Emergence angle in transmission is larger than 90° (=180°-i).
- Observation geometry
- direct
- Observation mode
- fixed angles
- Observation mode
- averaged
- Spots number
- 81920
- Objective type
- x25
- Pixels separation
- 3.3 x 3.3 ${\mu}m$
- Pixels number
- 64 x 64
- Image size
- 211.0 x 211.0 ${\mu}m$
- Comments
- 20 successive hyper-spectral measurements, with rotations of the horizontal needles holding the sample, were acquired. For each angle, pixels contained inside the sample were isolated and averaged to obtain preliminary average spectra. Then, the 20 preliminary average spectra were averaged to obtain the reflectance spectrum of an isolated particle.
- Date begin - end
- 2021-07-15 - 2022-02-20
Versions
- Release date
- 2023-09-21 11:54:23 UTC+0000
- Version (Date)
- #1 (2023-09-21 11:54:23 UTC+0000, Updated: 2023-09-21 11:54:23 UTC+0000)