SGP/PGS/C1 - Tower pump failure for 60m sample height

The tower pump for 60 m sample failed during this period. The system was not operating at 
nominal state for all 60 m sample data during this period (data for MP_VALVE_POSITION = 4)

Do not use this data for science

• Measured water content(h2o)
• Measured CO2 mole fraction(co2)
• Methane dry volume mixing ratio(ch4_dry)
• Methane concentration(ch4)
• Carbon dioxide dry volume mixing ratio(co2_dry)