GAN/TSI/M1 - Water on lens

After a rain episode, drops of water collected on the lens window causing the cloud 
fraction values to be suspect.

To prevent this, a drip edge was formed around the bottom of the enclosure with thick 
electrical or splicing tape.

• Percent thin cloud(percent_thin)
• Pixel count: number total in processed circle(count_sky)
• Pixel count: number total in zenith circle(region_zenith_count)
• Pixel count: number opaque in zenith circle(region_zenith_count_opaque)
• Pixel count: number total thin(count_thin)
• Pixel count: number thin in zenith circle(region_zenith_count_thin)
• Percent opaque cloud(percent_opaque)
• Pixel count: number total opaque(count_opaque)