Start_Time      Stop_Time       Feature_Type            Note(s)
84537           84757           Tropopause Crossing     Tropopause crossing during initial ascent
85167           85227           Unknown Filament        Joint increase in O3 and potential temperature with decrease in H2O in the stratosphere at constant altitude (~1.5 km above LRT and ~400-K), potentially higher latitude air
101227          101507          Aged Convection         Broad swell in H2O during descent to and across tropopause, linked with 4-5-day-old convection
101837          102277          Aerosol Layer           Upper troposphere aerosol layer with increased H2O and O3
102397          102577          Aerosol Layer           Mid-troposphere aerosol layer
