Manual

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Operation screen
Main screen
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Main screen display
◆Status
LT ： Local time
UTC ： Universal time coordinateded
Azimuth angle ： sun azimuth calculated from PC clock
（East:−90°South: 0°West: +90°North: 180°）calculated position / real position
Altitude angle ： sun altitude calculated from PC clock
（Nadir: −90° Horizon: 0° Zenith: 90°） calculated position / real position
Airmass ： airmass calculated from PC clock
Next observation time ： scheduled next observation time and airmass
Monitor channel ： Output[A] of selected wavelength
Return to channel 0 (Dark position) to prevent filter degradation after aerosol measurement
Sun sensor Lv ： Output of sun sensor count (Aerosol measurement is executed at sun sensor Lv
threshold)
Sensor Temp(NIR/VIS) ： NIR sensor temperature / sensor housing temperature [C]
Atmospheric pressure ： Barometer on request
OBS File ： Here you can see the path to the data directory.