CTIPe file list start and end dates and times
2016-01-15-plot-density.nc  Date: 2016-01-15  Time: 00:15:00    Date: 2016-01-16  Time: 00:00:00
2016-01-16-plot-density.nc  Date: 2016-01-16  Time: 00:15:00    Date: 2016-01-17  Time: 00:00:00
2016-01-15-plot-height.nc  Date: 2016-01-15  Time: 00:15:00    Date: 2016-01-16  Time: 00:00:00
2016-01-16-plot-height.nc  Date: 2016-01-16  Time: 00:15:00    Date: 2016-01-17  Time: 00:00:00
2016-01-15-plot-neutral.nc  Date: 2016-01-15  Time: 00:15:00    Date: 2016-01-16  Time: 00:00:00
2016-01-16-plot-neutral.nc  Date: 2016-01-16  Time: 00:15:00    Date: 2016-01-17  Time: 00:00:00