Experiment
Title
NIR bidirectional reflection spectrum (i=0-70°/e=0-70°/az=0°) of Smectite STx-1 (2µm grains) at 263K, Patm
Type(s)
laboratory
Variable(s)
illumination-observation geometry
Instrument
SHINE Spectro-Gonio Radiometer
Sample holder
Black anodized aluminum plate with ? mm deep rectangular hole (3x7cm)
Standard medium
vacuum
Spectral range type(s)
NIR
Valid spectral range(s)
Min - Max (${\mu}m$) Sampling (${\mu}m$) Resolution (${\mu}m$) Position accuracy (${\mu}m$) Absorption edge
#1 0.7 - 2.0 0.02 0.024 0.001
#2 2.0 - 4.18 0.02 0.048 0.001
Filters
Type Center/Edge (${\mu}m$) Width (${\mu}m$) Place
#1 long-pass filters of the spectro-gonio radiometer None None None
Incidence angle(s)
0.0°, 20.0°, 40.0°, 60.0°, 70.0°
Emergence angle(s)
0.0°, 10.0°, 20.0°, 30.0°, 40.0°, 50.0°, 60.0°, 70.0°
Azimuth angle(s)
0.0°
Resolution illumination
0.1°
Resolution observation
4.1°
Illumination
Observation
Comments
partial polarization variable with wavelength (from monochromator grating)
Observation mode
single spot
Image size
20.0 x 20.0 $mm$
Spatial resolution
20.0 ${\pm}$ 0.1 $mm$
Comments
The spatial elliptic observation spot and the resolution are for the nadir. They are variying with ermegence angles. The extent x can be calculated by $1/cos(\theta _e)$
Date begin - end
2007-01-01 - 2007-01-01