! time/lat/long style, multi-record, in caps
! (Year, Day, Hour, Min, Sec, Tenths, Lat, Long, ActivityID, EquipmentType, Depth, DepthUnits, Line, Station, Roll, Comments)
! (i4.4, i3.3, 3i2.2, i1.1, t16, f9.5, t26, f10.5, t37, a, t45, a24, t70, f6.1, t78, a1, t80, a9, t90, a9, t100, a9, t110, a)
! (%4.4i, %3.3i3%2.2i%1.1i %9.5f %10.5f %7s %24s %6.1f%1s %9s %9s %9s %s)
! temporal domain
! FACS Operation logbook, through /bear/programs/edit/breakdown, then through /bear/programs/nav/navmerge
! 
!        1         2         3         4         5         6         7         8         9        10        11        12
! 3456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890
19771821740000  57.12030 -150.93668 L777WG  BATHGRAVNAV                  0.0 M    0                   1      ON,    SYSTEM
19771821740000  57.12030 -150.93668 L777WG  BATHGRAVNAV                  0.0 M    0                   1      START, MAGNETIC TAPE
19771862016000  56.70375 -152.35695 L777WG  BATHGRAVNAV                  0.0 M   TR                   1      END,   MAGNETIC TAPE
19771862025000  56.71229 -152.33247 L777WG  BATHGRAVNAV                  0.0 M   TR                   2      START, MAGNETIC TAPE
19771902145000  55.83645 -154.85234 L777WG  BATHGRAVNAV                  0.0 M  712                   2      END,   MAGNETIC TAPE
19771902158000  55.82041 -154.86812 L777WG  BATHGRAVNAV                  0.0 M  712                   3      START, MAGNETIC TAPE
19771942130000  56.83669 -155.12460 L777WG  BATHGRAVNAV                  0.0 M  776                   3      END,   MAGNETIC TAPE
19771942140000  56.82264 -155.12460 L777WG  BATHGRAVNAV                  0.0 M  776                   4      START, MAGNETIC TAPE
19771982215000  57.22845 -148.56776 L777WG  BATHGRAVNAV                  0.0 M   TR                   4      END,   MAGNETIC TAPE
19771982227000  57.23600 -148.50955 L777WG  BATHGRAVNAV                  0.0 M   TR                   5      START, MAGNETIC TAPE
19772022340000  57.73507 -149.24879 L777WG  BATHGRAVNAV                  0.0 M   72                   5      END,   MAGNETIC TAPE
19772022340000  57.73682 -149.30524 L777WG  BATHGRAVNAV                  0.0 M   TR                   6      START, MAGNETIC TAPE
19772031700000  57.78719 -152.40114 L777WG  BATHGRAVNAV                  0.0 M                        6      END,   MAGNETIC TAPE
19772031700000  57.78719 -152.40114 L777WG  BATHGRAVNAV                  0.0 M                        6      OFF,   SYSTEM