Spectrum

Vis-NIR reflectance spectra of powdered NWA4766 (i=0°, a=0°, e=-50°)

Title
Vis-NIR reflectance spectra of powdered NWA4766 (i=0°, a=0°, e=-50°)
DOI
10.26302/SSHADE/EXPERIMENT_LB_20210517_001
Data reference
Mandon, Lucia; Beck, Pierre (2018): Vis-NIR reflectance spectra of a powdered and a cut section of NWA4766 (basaltic shergottite) at various observational geometries. SSHADE/ROMA+GhoSST (OSUG Data Center). Dataset/Spectral Data. https://doi.org/10.26302/SSHADE/EXPERIMENT_LB_20210517_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) for powdered NWA4766 and flat sample holder in anodized aluminum for cut section of NWA4766
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
#1 360.0 - 600.0 20.0 4.8
#2 700.0 - 1400.0 20.0 8.0
#3 1500.0 - 3000.0 20.0 4.0
Scan number
1
Comments
measurements over the 360 - 3000 nm range
Observation geometry
bidirectional
Observation mode
three variable angles
Resolution illumination
2.9°
Resolution observation
2.05°
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 of a powdered and a cut section of NWA4766 (basaltic shergottite) at various observational geometries
Date begin
2018-04-01
Release date
2021-05-19 13:59:21 UTC+0000
Version (Date)
#1 (2021-05-19 13:59:21 UTC+0000, Updated: 2021-05-19 13:59:21 UTC+0000)
History
Date Mode Version Status Comments
2021-05-18 17:21:59 UTC+0000 first import #1 valid version
Analysis
raw 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