Spectrum

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
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?
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 $mm$
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