norb: nrec:UTC date:thhmmssmss
    497      2 20000926 .022400001
    497     11 20000927 .013300001
    498     24 20000928 .011030001
    498     33 20000929 .000130001
    498     43 20000930 .001800001
    498     52 20001001 .013130001
    499     65 20001002 .013000001
    499     73 20001003 .002400001
    499     81 20001004 .000600001
    499     88 20001005 .012700001
    500    100 20001006 .024200001
    500    106 20001007 .040000001
    500    111 20001008 .005830001
    501    121 20001009 .000622501
    501    129 20001010 .001715001
    501    137 20001011 .004115001
    501    146 20001012 .000645001
    502    160 20001013 .004245001
    502    173 20001014 .012915001
    502    189 20001015 .004415001
    502    204 20001016 .014245001
    502    210 20001016 .134415001