- Title
- VIS-NIR reflectance spectra (i=0°, e= 30°) of powdered iron sulfides at 3 different grains sizes (from 0.3 to 100 μm)
- DOI
- 10.26302/SSHADE/EXPERIMENT_LB_20260909_001
- Data reference
- Sultana, Robin; Poch, Olivier; Beck, Pierre (2020): VIS-NIR reflectance spectra (i=0°, e= 30°) of powdered iron sulfides at 3 different grains sizes (from 0.3 to 100 μm). SSHADE/GhoSST (OSUG Data Center). Dataset/Spectral Data. https://doi.org/10.26302/SSHADE/EXPERIMENT_LB_20260909_001
- Publications
- Database(s)
- Experimentalists
- Type(s)
- laboratory measurement
- Description
- VIS-NIR (from 0.4 to 4.2 µm) reflectance spectra (i = 0°, e = 30°) of iron sulfides at 3 different grain sizes (50-100 μm, 25-50 μm, and 0.3 μm
- Number of spectra
- 3
- Variable type(s)
-
- sample size
- Instrument
- SHADOWS Spectro-Gonio bidirectional reflection Vis-NIR
- Carrier
- open sample holder (7 mm diameter, 1 mm deep) in anodized aluminum (not blackened)
- Standard medium
- vacuum
- Observation mode
- spectrum
- Spectral range type(s)
- Vis, NIR
- Valid spectral range(s)
-
Min - Max ($nm$) Sampling ($nm$) Resolution ($nm$) Position accuracy ($nm$) Absorption edge #1 560.0 - 660.0 20.0 4.8 #2 680.0 - 1380.0 20.0 7.6 #3 1400.0 - 2980.0 20.0 15.0 #4 3000.0 - 4200.0 20.0 31.0 - Filters
-
Type Center/Edge ($nm$) Width ($nm$) Place #1 long-pass filters of the spectro-gonio radiometer - Comments
- data below 560 nm have a S/N too low to be considered as representative of the real spectral shape
Definition: incidence and emergence angles are positive with origin at nadir, and vary in same direction. Azimuth origin (increasing clockwise) is for i = e (opposition geometry).
- Observation geometry
- bidirectional
- Observation mode
- fixed angles
- Incidence angle
- 0.0°
- Emergence angle
- 30.0°
- Azimuth angle
- 0.0°
- Phase angle
- 30.0°
- Resolution observation
- 4.1°
- Observation mode
- single spot
- Date begin - end
- 2020-01-01 - 2023-12-31
Versions
- Release date
- 2026-09-11 07:12:08+0000 UTC
- Version (Date)
- #1 (2026-09-11 07:12:08+0000 UTC, Updated: 2026-09-11 07:12:08+0000 UTC)
- Sponsors
-
- European Research Council (ERC SOLARYS) (SOLARYS: Composition of Solar System Small Bodies (ERC-CoG2017-771691))