Vis-NIR reflectance spectra (i = 0°, e = 30°) of powdered antigorite (50 - 100 μm)
- Title
- Vis-NIR reflectance spectra (i = 0°, e = 30°) of powdered antigorite (50 - 100 μm)
- DOI
- 10.26302/SSHADE/EXPERIMENT_LB_20240713_001
- Data reference
- Wargnier, Antonin; Poch, Olivier; Beck, Pierre (2022): Vis-NIR reflectance spectra (i=0°, e=30°, az=0°) of Phobos simulants (silicates, organics, pure and mixed). SSHADE/GhoSST (OSUG Data Center). Dataset/Spectral Data. https://doi.org/10.26302/SSHADE/EXPERIMENT_LB_20240713_001
- Publications
- Database
- Experimentalists
- Experiment type
- laboratory measurement
- Type
- reflectance factor
- Instrument
- SHADOWS Spectro-Gonio bidirectional reflection Vis-NIR
- Sample holder
- open sample holder (13 mm diameter, 2 mm deep) in anodized aluminum (not blackened)
- Standard medium
- air
- Observation mode
- spectrum
- Spectral range type(s)
- Vis, NIR
- Valid spectral range(s)
-
Min - Max (${\mu}m$) Sampling (${\mu}m$) Resolution (${\mu}m$) Position accuracy (${\mu}m$) Absorption edge #1 0.6 - 0.68 0.02 0.003 #2 0.7 - 1.58 0.02 0.006 #3 1.6 - 2.82 0.02 0.013 #4 2.84 - 4.2 0.02 0.026 - Scan number
- 1
- Comments
- Measured over the 380-4500 nm range?
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°
Illumination
Observation
- Comments
- partial polarization variable with wavelength (from monochromator grating)
- Observation mode
- single spot
- Image size
- 5.2 x 5.2 $mm$
- Name
- antigorite
- Experiment
- Vis-NIR reflectance spectra (i=0°, e=30°, az=0°) of Phobos simulants (silicates, organics, pure and mixed)
- Date begin
- 2023-05-22
- Release date
- 2024-07-16 15:12:29 UTC+0000
- Version (Date)
- #1 (2024-07-16 15:12:29 UTC+0000, Updated: 2024-07-16 15:12:29 UTC+0000)
- History
-
Date Mode Version Status Comments 2024-07-14 19:06:50 UTC+0000 first import #1 valid version
- Analysis
- bidirectional reflectance spectrum calibrated: 1) with "Spectralon 99%" measured under same geometry using its absolute BRDF (0.4-2.1µm) and 2) with "Infragold" using its relative spectral reflectance (2.1-2.6µm)
- Quality flag
- 3