norb: nrec:UTC date:thhmmssmss
   4147      2 19990526 .010815000
   4151     45 19990527 .002745000
   4155     89 19990528 .012145000
   4159    132 19990529 .003600000
   4163    176 19990530 .001545000
   4168    223 19990531 .000345000
   4172    268 19990601 .000215000
   4176    313 19990602 .010900000
   4180    356 19990603 .001415000
   4184    400 19990604 .005745000
   4188    443 19990605 .000600000
   4192    488 19990606 .001030000
   4197    536 19990607 .001845000
   4201    580 19990608 .000215000
   4205    624 19990609 .000515000
   4209    668 19990610 .005615000
   4213    711 19990611 .002615000
   4217    755 19990612 .002745000
   4221    799 19990613 .000000000
   4226    847 19990614 .000815000
   4230    892 19990615 .004245000
   4234    936 19990616 .010730000
   4238    979 19990617 .001630000
   4242   1023 19990618 .005230000
   4246   1066 19990619 .000215000
   4250   1112 19990620 .000000000
   4255   1159 19990621 .001030000
   4259   1203 19990622 .001030000
   4263   1247 19990623 .003900000
   4267   1291 19990624 .012100000
   4271   1334 19990625 .003000000
   4275   1378 19990626 .001500000
   4280   1425 19990627 .000900000
   4284   1470 19990628 .000215000
   4288   1515 19990629 .005745000
   4292   1558 19990630 .000730000
   4296   1602 19990701 .004545000
   4300   1646 19990702 .004500000
   4304   1690 19990703 .001715000
   4309   1737 19990704 .000000000
   4309   1737 19990704 .000000000