norb: nrec:UTC date:thhmmssmss
    995      2 19970426 .002230000
    999     51 19970427 .000045001
   1004     97 19970428 .001030001
   1008    144 19970429 .004330000
   1012    188 19970430 .004930000
   1016    235 19970501 .012100000
   1020    279 19970502 .004715000
   1024    326 19970503 .001500000
   1029    374 19970504 .000600000
   1033    422 19970505 .003645001
   1037    466 19970506 .002700001
   1041    513 19970507 .005315001
   1045    557 19970508 .005230001
   1049    603 19970509 .003515000
   1053    648 19970510 .000900000
   1058    699 19970511 .002145001
   1062    743 19970512 .000045001
   1066    790 19970513 .004115000
   1070    834 19970514 .004630000
   1074    880 19970515 .001800000
   1078    924 19970516 .000815000
   1082    970 19970517 .000730000
   1087   1020 19970518 .002230000
   1091   1064 19970519 .000215000
   1095   1112 19970520 .005745001
   1099   1156 19970521 .010000001
   1103   1203 19970522 .010130000
   1107   1247 19970523 .002145000
   1111   1296 19970524 .000600000
   1116   1343 19970525 .002445000
   1120   1387 19970526 .001330000
   1124   1434 19970527 .004630001
   1128   1478 19970528 .010215001
   1132   1522 19970529 .005315001
   1136   1566 19970530 .002145001
   1140   1615 19970531 .000045001
   1145   1662 19970601 .002315001
   1149   1706 19970602 .001245001
   1153   1750 19970603 .001415001
   1157   1797 19970604 .000000000
   1157   1797 19970604 .000000000