The data here is from the University of Colorado Ozone Photometer flown on balloons PSC16, PSC17 and PSC19.   

Ozone is derived from photometric measurements of absorption at 254 nm.  

The data here is version zero and has had basic quality control performed.   

Later versions may include more detailed QC as well as changes from on post flight calibrations and in flight ozone sonde matches.   

The position and state variables corresponding to ozone measurements are derived from TSEN data provided by Albert Hertzog at LMD.