norb: nrec:UTC date:thhmmssmss
    168      2 19970426 .022400000
    168     11 19970427 .004200000
    168     19 19970428 .010300000
    169     25 19970429 .013430000
    169     33 19970430 .030430000
    169     39 19970501 .032830000
    170     44 19970502 .060300000
    170     50 19970503 .020730000
    170     59 19970504 .015700000
    170     69 19970505 .001930000
    171     76 19970506 .002230000
    171     88 19970507 .002830000
    171    106 19970508 .002230000
    171    121 19970509 .004500000
    172    127 19970510 .001030000
    172    137 19970511 .005230000
    172    147 19970512 .021030000
    172    154 19970513 .025230000
    173    159 19970514 .022830000
    173    165 19970515 .030600000
    173    171 19970516 .005530000
    173    177 19970517 .010730000
    174    184 19970518 .014630000
    174    193 19970519 .010300000
    174    203 19970520 .020130000
    175    211 19970521 .054330000
    175    218 19970522 .004330000
    175    231 19970523 .013730000
    175    241 19970524 .012830000
    176    247 19970525 .003730000
    176    256 19970526 .013730000
    176    265 19970527 .001930000
    176    273 19970528 .003730000
    177    280 19970529 .021200000
    177    286 19970530 .021330000
    177    292 19970531 .024930000
    177    299 19970601 .015230000
    178    305 19970602 .010600000
    178    319 19970603 .011630000
    178    336 19970604 .000000000
    178    336 19970604 .000000000