Triton Isis User Manual
Page 32
June 2004 Isis® Sonar User's Manual, Volume 2
22
0246 fishLayback
2 USHORT
Towfish
layback
(horizontal
distance) in meters from
navigation telemetry or manual
entry, used in position
calculations.
0248 navFixHour
1 BYTE
0249
navFixMinute
1
BYTE
Time of the most recent
navigation fix.
0250 navFixSeconds
1 BYTE
0251 relativeBearingToFis
h
1
CHAR
Bearing to towfish in integral
degrees off ship’s course, ship
to fish straight back is 000, to
starboard is -090; calculated
and stored only when you have
entered a non-zero layback and
a lateral offset (Veeder Root).
Used in position calculations
when non-zero. Not used in Isis.
0252
julianDay
2
USHORT Number of days since the first of
the year, since Q-MIPS v5.18.
Month and day are calculated
from this value.*
0254
cableOut
2
USHORT Cable out in meters from
navigation telemetry, manual
entry or computed as a
percentage of telemetered fish
layback. †
† For storage only, not used in any Q-MIPS calculations.
* Set to the value received from navigation system or digital towfish; otherwise
zero
Appendix A: Q-MIPS File Format