Soundings in directory JUN1998B of type *.i??
 no.    File        Date    start    End (UT)
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Soundings in directory JUN1998C of type *.i??
 no.    File        Date    start    End (UT)
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Soundings in directory JUL1998A of type *.i??
 no.    File        Date    start    End (UT)
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