Uv-Vis-NIR (340 - 4200nm) bidirectional reflectance spectra of a powdered howardite under various geometrical configurations (i=0°, 20°, 40°, 60°, e=-70° - 70°, step 10°)
- Title
- Uv-Vis-NIR (340 - 4200nm) bidirectional reflectance spectra of a powdered howardite under various geometrical configurations (i=0°, 20°, 40°, 60°, e=-70° - 70°, step 10°)
- 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
- Database
- Experimentalists
- Experiment type
- laboratory measurement
- Type
- bidirectional reflectance
- Intensity unit
- no unit
- 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 - Scan number
- 10
- 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
- Resolutions
- 5.2 $None$
- Number of geometries
- 70
| Incidence | Emergence | Azimuth | Phase |
|---|---|---|---|
| 0.0° | 10.0° | 0.0° | 10.0° |
| 0.0° | 20.0° | 0.0° | 20.0° |
| 0.0° | 30.0° | 0.0° | 30.0° |
| 0.0° | 40.0° | 0.0° | 40.0° |
| 0.0° | 50.0° | 0.0° | 50.0° |
| 0.0° | 60.0° | 0.0° | 60.0° |
| 0.0° | 70.0° | 0.0° | 70.0° |
| 20.0° | 10.0° | 0.0° | 10.0° |
| 20.0° | 30.0° | 0.0° | 10.0° |
| 20.0° | 40.0° | 0.0° | 20.0° |
| 20.0° | 50.0° | 0.0° | 30.0° |
| 20.0° | 60.0° | 0.0° | 40.0° |
| 20.0° | 70.0° | 0.0° | 50.0° |
| 40.0° | 10.0° | 0.0° | 30.0° |
| 40.0° | 20.0° | 0.0° | 20.0° |
| 40.0° | 30.0° | 0.0° | 10.0° |
| 40.0° | 50.0° | 0.0° | 10.0° |
| 40.0° | 60.0° | 0.0° | 20.0° |
| 40.0° | 70.0° | 0.0° | 30.0° |
| 60.0° | 10.0° | 0.0° | 50.0° |
| 60.0° | 20.0° | 0.0° | 40.0° |
| 60.0° | 30.0° | 0.0° | 30.0° |
| 60.0° | 40.0° | 0.0° | 20.0° |
| 60.0° | 50.0° | 0.0° | 10.0° |
| 60.0° | 70.0° | 0.0° | 10.0° |
| 20.0° | 10.0° | 30.0° | 12.35° |
| 20.0° | 30.0° | 30.0° | 15.87° |
| 20.0° | 40.0° | 30.0° | 24.46° |
| 20.0° | 50.0° | 30.0° | 33.81° |
| 20.0° | 60.0° | 30.0° | 43.42° |
| 20.0° | 70.0° | 30.0° | 53.15° |
| 20.0° | 0.0° | 150.0° | 20.0° |
| 20.0° | 10.0° | 150.0° | 29.08° |
| 20.0° | 20.0° | 150.0° | 38.58° |
| 20.0° | 30.0° | 150.0° | 48.26° |
| 20.0° | 40.0° | 150.0° | 58.03° |
| 20.0° | 50.0° | 150.0° | 67.84° |
| 20.0° | 60.0° | 150.0° | 77.68° |
| 20.0° | 70.0° | 150.0° | 87.53° |
| 0.0° | 10.0° | 180.0° | 10.0° |
| 0.0° | 20.0° | 180.0° | 20.0° |
| 0.0° | 30.0° | 180.0° | 30.0° |
| 0.0° | 40.0° | 180.0° | 40.0° |
| 0.0° | 50.0° | 180.0° | 50.0° |
| 0.0° | 60.0° | 180.0° | 60.0° |
| 0.0° | 70.0° | 180.0° | 70.0° |
| 20.0° | 0.0° | 180.0° | 20.0° |
| 20.0° | 10.0° | 180.0° | 30.0° |
| 20.0° | 20.0° | 180.0° | 40.0° |
| 20.0° | 30.0° | 180.0° | 50.0° |
| 20.0° | 40.0° | 180.0° | 60.0° |
| 20.0° | 50.0° | 180.0° | 70.0° |
| 20.0° | 60.0° | 180.0° | 80.0° |
| 20.0° | 70.0° | 180.0° | 90.0° |
| 40.0° | 0.0° | 180.0° | 40.0° |
| 40.0° | 10.0° | 180.0° | 50.0° |
| 40.0° | 20.0° | 180.0° | 60.0° |
| 40.0° | 30.0° | 180.0° | 70.0° |
| 40.0° | 40.0° | 180.0° | 80.0° |
| 40.0° | 50.0° | 180.0° | 90.0° |
| 40.0° | 60.0° | 180.0° | 100.0° |
| 40.0° | 70.0° | 180.0° | 110.0° |
| 60.0° | 0.0° | 180.0° | 60.0° |
| 60.0° | 10.0° | 180.0° | 70.0° |
| 60.0° | 20.0° | 180.0° | 80.0° |
| 60.0° | 30.0° | 180.0° | 90.0° |
| 60.0° | 40.0° | 180.0° | 100.0° |
| 60.0° | 50.0° | 180.0° | 110.0° |
| 60.0° | 60.0° | 180.0° | 120.0° |
| 60.0° | 70.0° | 180.0° | 130.0° |
- Experiment
- 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°)
- Date begin
- 2018-01-01
- 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)
- History
-
Date Mode Version Status Comments 2021-09-08 09:47:28 UTC+0000 first import #1 valid version
- Analysis
- Calculation of the reflectance factor with comparison with spectra acquired on reference surfaces (Spectralon and Infragold) at incidence 0° and emergence 30°, linked at 1400nm and corrected of the geometric effects.
- Quality flag
- 4