Spectrum

Vis-NIR reflectance spectrum of Dark basalt (grains < 100 µm) at 293 K

Title
Vis-NIR reflectance spectrum of Dark basalt (grains < 100 µm) at 293 K
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Data
Unit:  Range: Valid spectral range(s): 4159.73377703827 - 26315.7894736842 micron
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DOI
10.26302/SSHADE/EXPERIMENT_OP_20201104_001
Data reference
Yoldi, Zuriñe (2016): Vis-NIR reflectance spectra of JSC Mars 1 or Dark basalt powders pure, and/or mixed with H2O ice (with ice particles ~4 or ~67 µm, or in a slab), and/or covered with H2O frost. SSHADE/BYPASS (OSUG Data Center). Dataset/Spectral Data. https://doi.org/10.26302/SSHADE/EXPERIMENT_OP_20201104_001
Publications
Database
Experimentalists
Spectrum type
Experiment type
laboratory measurement
Type
reflectance factor
Comments
In the reduced data set, absolute uncertainty on the calibrated reflectance factor is ±0.1, and the spatial variability of the reflectance across the field of view is of the order of 10%. Thus, the SCITEAS imaging system does not provide a very accurate measurement of the absolute reflectance, but it provides a spectrum resolved in wavelength from 0.4 to 2.4 μm.
Instrument #1
Instrument
SCITEAS Imaging System - hyperspectral imaging system Vis-NIR
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 0.38 - 0.96 0.02 0.015
#2 0.96 - 2.404 0.01 0.03
Scan number
1
Observation geometry
biconical
Observation mode
fixed angles
Emergence angle
13.0°
Azimuth angle
0.0°
Comments
The light beam emitted from the extremity of the fibre bundle positionned about 300 mm above the sample surface has a divergence half-angle of 12.7°. The light source incidence and azimuth angles are slightly variable from pixel to pixel.
Observation mode
roi averaged
Comments
Note to the provider: Complete the "image" observation_mode when fully implemented in SSHADE. Because SCITEAS data are hyperspectral images.
Name
Dark basalt (grains smaller than 100 µm)
Experiment
Vis-NIR reflectance spectra of JSC Mars 1 or Dark basalt powders pure, and/or mixed with H2O ice (with ice particles ~4 or ~67 µm, or in a slab), and/or covered with H2O frost
Date begin
2017-07-07
Release date
2020-11-13 21:44:36 UTC+0000
Version (Date)
#1 (2020-11-13 21:44:36 UTC+0000, Updated: 2020-11-13 21:44:36 UTC+0000)
History
Date Mode Version Status Comments
2020-11-05 16:34:24 UTC+0000 first import #1 valid version new reflectance spectrum
Analysis
White Spectralon (99%) plates (Labsphere) were used as external and internal calibration standards.
Quality flag
4
Validator(s)
RGB composite of the sample as seen by the SCITEAS Imaging System.