TWP/GNDRAD/C2 - Instrument inverted for Calibration

The GNDRAD was inverted to look at the sky for comparison
with other radiometers.

Do not use unrepresentative data.

• psp1_min
• net_max
• pir1_sd
• net_sd
• pir1_min
• psp1_sd
• net_mean
• alt
• irt1_sd
• pir1_max
• internal_voltage
• irt1_min
• base_time
• psp1_mean
• external_voltage
• irt1_mean
• lat
• pir1_mean
• filename
• time_offset
• net_min
• irt1_max
• logger_temp
• psp1_max
• lon
• bit_data

• Raw data stream - documentation not supported

• lat
• pir1_voltage
• pir1_case_therm
• alt
• pir1_dome_therm
• base_time
• time_offset
• lon
• filename