e_prefilter_b8a
    creation_date: May 2020
    contact: Chris O&#39;Dell: odell@atmos.colostate.edu
    dimensions(sizes): sounding_id(202617), levels(20), bands(3), vertices(4), footprints(8), source_files(15), epoch_dimension(7)
    variables(dimensions): uint64 sounding_id(sounding_id), int16 levels(levels), int16 bands(bands), int16 vertices(vertices), int16 footprints(footprints), int16 date(sounding_id,epoch_dimension), float32 latitude(sounding_id), float32 longitude(sounding_id), float64 time(sound