- Title
- Bidirectional reflectance spectra (340-4200nm) of powdered howardite and a sublimation residue of a Ceres simulant under various geometrical configurations (i=0°, 20°, 40°, 60°, e=-70° to 70°)
- DOI
- 10.26302/SSHADE/EXPERIMENT_SP_20210814
- Data reference
- Potin, Sandra (2018): Bidirectional reflectance spectra (340-4200nm) of powdered howardite and a sublimation residue of a Ceres simulant under various geometrical configurations (i=0°, 20°, 40°, 60°, e=-70° to 70°). SSHADE/GhoSST (OSUG Data Center). Dataset/Spectral Data. https://doi.org/10.26302/SSHADE/EXPERIMENT_SP_20210814
- Publications
- Comments
- Complete dataset of the bidirectional reflectance spectra of the reference surfaces
- Database(s)
- Experimentalists
- Type(s)
- laboratory measurement
- Description
- Bidirectional reflectance spectra (340-4200nm) of powdered howardite and a sublimation residue of a Ceres simulant under various geoemtrical configurations (i=0°, 20°, 40°, 60°, e=-70° to 70°, step 10°)
- Number of spectra
- 2
- Variable type(s)
-
- sample composition
- illumination-observation geometry
- Instrument
- SHADOWS Spectro-Gonio bidirectional reflection Vis-NIR
- Sample holder
- Aluminium holder 14mm long, 7mm wide and 1mm depth
- Standard medium
- vacuum
- Observation mode
- spectrum
- Spectral range type(s)
- UV, Vis, NIR
- Valid spectral range(s)
-
Min - Max ($nm$) Sampling ($nm$) Resolution ($nm$) Position accuracy ($nm$) Absorption edge #1 340.0 - 660.0 20.0 4.8 0.5 #2 680.0 - 1420.0 20.0 9.6 1.0 #3 1440.0 - 2500.0 20.0 19.2 2.0 #4 2520.0 - 4200.0 20.0 30.0 4.0 - Comments
- a set of high pass filters at the monochromator output to filter the higher orders
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
- three variable angles
- Resolution illumination
- 5.8°
- Resolution observation
- 4.1°
Illumination
Observation
- Comments
- partial polarization variable with wavelength (from monochromator grating)
- Observation mode
- single spot
- Spatial resolution
- 5.2 $None$
- Date begin
- 2018-01-01
Versions
- Release date
- 2021-11-22 18:12:53 UTC+0000
- Version (Date)
- #1 (2021-11-22 18:12:53 UTC+0000, Updated: 2021-11-22 18:12:53 UTC+0000)