norb: nrec:UTC date:thhmmssmss
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    497     11 20000927 .013045001
    498     24 20000928 .012530001
    498     33 20000929 .001715001
    498     43 20000930 .003345001
    498     52 20001001 .014845001
    499     65 20001002 .020130001
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    500    119 20001009 .000215001
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    501    146 20001012 .001500001
    502    160 20001013 .011737501
    502    172 20001014 .001930001
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    502    204 20001016 .020130001
    502    210 20001016 .135830001