row_num,CN,SRV_CN,CTY_CN,INVYR,STATECD,UNITCD,COUNTYCD,O3PLOT,FIELD_ID,SPLIT_PLOTID,MEASYEAR,MEASMON,MEASDAY,LAT,LON,ELEVATION,MANUAL,QA_STATUS,CREATED_BY,CREATED_DATE,CREATED_IN_INSTANCE,MODIFIED_BY,MODIFIED_DATE,MODIFIED_IN_INSTANCE,CYCLE,SUBCYCLE