Spectrum

Bidirectional Vis-NIR reflectance spectra of 95%-N2:5%-CH4:500ppm-CO tholins under vaccuum at 100°C (i=0°, e=30°)

Title
Bidirectional Vis-NIR reflectance spectra of 95%-N2:5%-CH4:500ppm-CO tholins under vaccuum at 100°C (i=0°, e=30°)
DOI
10.26302/SSHADE/EXPERIMENT_BS_20201201_001
Data reference
Fayolle, Marie; Quirico, Eric; Potin, Sandra (2018): Bidirectional Vis-NIR reflectance spectra of two tholins samples (+ mixtures with pyrrhotite) at various illumination-observation geometries (i=0°,30°,60° - e= -70° to 70°) and their extracted single scattering albedo and optical constants spectra. SSHADE/GhoSST (OSUG Data Center). Dataset/Spectral Data. https://doi.org/10.26302/SSHADE/EXPERIMENT_BS_20201201_001
Publications
Experiment type
laboratory measurement
Type
reflectance factor
Intensity unit
no unit
Instrument
SHINE Spectro-Gonio bidirectional reflection Vis-NIR
Sample holder
open sample holder (12 mm diameter, 6 mm deep) in anodized aluminum
Standard medium
vacuum
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 0.68 - 1.42 0.02 0.096 0.001
#2 1.44 - 2.5 0.02 0.192 0.002
Scan number
10
Comments
a set of high pass filters at the monochromator output to filter the higher orders
Observation geometry
bidirectional
Observation mode
fixed angles
Incidence angle
0.0°
Emergence angle
30.0°
Azimuth angle
0.0°
Phase angle
30.0°
Resolution illumination
5.8°
Resolution observation
4.1°
Comments
angular resolution is full width
Illumination
Observation
Comments
partial polarization variable with wavelength (from monochromator grating)
Observation mode
single spot
Image size
7.5 x 7.5 $mm$
Name
Tholins LATMOS 95%-N2:5%-CH4:500ppm-CO
Changes
no more spectral change relative to 80°C
Comments
measured under vaccuum in the SERAC environmental cell with one saphire window
Experiment
Bidirectional Vis-NIR reflectance spectra of two tholins samples (+ mixtures with pyrrhotite) at various illumination-observation geometries (i=0°,30°,60° - e= -70° to 70°) and their extracted single scattering albedo and optical constants spectra
Date begin
2018-06-29
Release date
2021-06-02 08:37:16 UTC+0000
Version (Date)
#1 (2021-06-02 08:37:16 UTC+0000, Updated: 2021-06-02 08:37:16 UTC+0000)
History
Date Mode Version Status Comments
2020-12-31 20:33:56 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 (0.68-2.1µm) and 2) with "Infragold" using its relative spectral reflectance (2.1-2.5µm). The effect of the mltiple reflections on the saphire windows have been corrected.
Quality flag
4
Validator(s)