AWR/MFR/M1 - Instrument covered to measure dark values

The instrument sensor was covered during this period in order to measure dark values so 
the correct offsets can be applied.

• 10 meter upwelling narrowband hemispheric irradiance, filter 4(up_hemisp_narrowband_filter4_raw)
• 3 meter upwelling broadband hemispheric irradiance(up_hemisp_broadband)
• 25 meter upwelling narrowband hemispheric irradiance, filter 1(up_hemisp_narrowband_filter1_raw)
• 10 meter upwelling narrowband hemispheric irradiance, filter 5(up_hemisp_narrowband_filter5_raw)
• 3 meter upwelling narrowband hemispheric irradiance, filter 3(up_hemisp_narrowband_filter3_raw)
• Offset subtracted from upwelling hemispheric filter2 data(offset_filter2)
• 10 meter Narrowband Upwelling Hemispheric Irradiance, Filter 6(up_hemisp_narrowband_filter6)
• 25 meter upwelling narrowband hemispheric irradiance, filter 6(up_hemisp_narrowband_filter6_raw)
• 10 meter upwelling narrowband hemispheric irradiance, filter 1(up_hemisp_narrowband_filter1)
• 3 meter upwelling narrowband hemispheric irradiance, filter 2, offset corrected(up_hemisp_narrowband_filter2)
• 3 meter upwelling narrowband hemispheric irradiance, filter 3, offset corrected(up_hemisp_narrowband_filter3)
• 3 meter upwelling narrowband hemispheric irradiance, filter 4(up_hemisp_narrowband_filter4)
• 10 meter upwelling narrowband hemispheric irradiance, filter 2(up_hemisp_narrowband_filter2_raw)
• 3 meter upwelling broadband hemispheric irradiance(up_hemisp_broadband_raw)
• 25 meter upwelling narrowband hemispheric irradiance, filter 5, offset corrected(up_hemisp_narrowband_filter5)

• 3 meter upwelling broadband hemispheric irradiance(up_hemisp_broadband)
• 10 meter Narrowband Upwelling Hemispheric Irradiance, Filter 6(up_hemisp_narrowband_filter6)
• 3 meter upwelling narrowband hemispheric irradiance, filter 4(up_hemisp_narrowband_filter4)
• 25 meter upwelling narrowband hemispheric irradiance, filter 5, offset corrected(up_hemisp_narrowband_filter5)
• 3 meter upwelling narrowband hemispheric irradiance, filter 2, offset corrected(up_hemisp_narrowband_filter2)
• 3 meter upwelling narrowband hemispheric irradiance, filter 3, offset corrected(up_hemisp_narrowband_filter3)
• 10 meter upwelling narrowband hemispheric irradiance, filter 1(up_hemisp_narrowband_filter1)
• Azimuth angle(azimuth_angle)