- Title
- VIS-NIR-MIR Reflectance spectra of mixtures of sub-µm grains of Olivine with Iron Sulfides or Anthracite, at different concentrations
- DOI
- 10.26302/SSHADE/EXPERIMENT_OP_20230207_001
- Data reference
- Sultana, Robin (2019): VIS-NIR-MIR Reflectance spectra of mixtures of sub-µm grains of Olivine with Iron Sulfides or Anthracite, at different concentrations. SSHADE/GhoSST (OSUG Data Center). Dataset/Spectral Data. https://doi.org/10.26302/SSHADE/EXPERIMENT_OP_20230207_001
- Publications
- Database(s)
- Experimentalists
- Type(s)
- laboratory measurement
- Description
- We measured the reflectance spectra (from 0.55 to 25 µm) of mixtures of sub-µm grains of Olivine with Iron Sulfides or Anthracite.
- Number of spectra
- 22
- Variable type(s)
-
- sample composition
- sample abundance
- Instrument
- Brucker Vertex 70 – transmission Mid-IR
- Sample holder
- Aluminum sample holder in a biconical reflectance kit A513/QA
- Standard medium
- air
- Observation mode
- spectrum
- Spectral range type(s)
- NIR, MIR
- Valid spectral range(s)
-
Min - Max ($nm$) Sampling ($nm$) Resolution ($nm$) Position accuracy ($nm$) Absorption edge #1 2222.0 - 25000.0
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
- biconical
- Observation mode
- fixed angles
- Incidence angle
- 15.0°
- Emergence angle
- 30.0°
- Azimuth angle
- 0.0°
- Phase angle
- 45.0°
- Resolution observation
- 5.0°
Illumination
Observation
- Comments
- some wavelength dependent polarization
- Observation mode
- single spot
- Spatial resolution
- 5.0 ${\pm}$ 1.0 $mm$
- 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 #1 500.0 - 660.0 20.0 3.8 #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
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°
Illumination
Observation
- Comments
- partial polarization variable with wavelength (from monochromator grating)
- Observation mode
- single spot
- Spatial resolution
- 5.2 $mm$
- Date begin - end
- 2019-01-01 - 2020-01-01
Versions
- Release date
- 2023-02-07 21:19:37 UTC+0000
- Version (Date)
- #1 (2023-02-07 21:19:37 UTC+0000, Updated: 2024-03-14 16:23:13 UTC+0000)
- Sponsors
-
- European Research Council (ERC SOLARYS) (SOLARYS: Composition of Solar System Small Bodies (ERC-CoG2017-771691))