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Triton Isis User Manual

Page 31

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June 2004 Isis® Sonar User's Manual, Volume 2

21

0198

shipLongitude

8

DOUBLE Ship’s longitude in decimal

degrees. †*

0206

navEasting

4

FLOAT

Computed fish position in
meters if navUnits are m. When
the navUnits are degrees, the
navEasting and navNorthing
fields are combined into one
double-precision floating point
value to hold navLatitude.

0210 navNorthing

4 FLOAT

0214

cableTension

4

FLOAT

Cable tension in from serial port.
†*

0218 conductivity

4 FLOAT CTD

Conductivity

frequency.

†*

0222

navFishHeading

4

FLOAT

For backward compatibility with
S-MIPS files only. All zeros. Not
currently used.

0226

navFishSpeed

4

FLOAT

Fish speed in knots from nav
telemetry or computed from
navigation telemetry N and E
velocities, used in imagery
display calculations. If speed is
not available from navigation
telemetry, navFishSpeed is set
to shipSpeed or calculated from
point-to-point towfish position.

0230

navShipGyro

4

FLOAT

Ship’s heading in degrees
displayed on status monitor. †*

0234

auxVal4

4

FLOAT

Auxiliary telemetry value, user-
defined; displayed in Isis
Sensors box. †*

0238

navLongitude

8

DOUBLE Computed fish position in

decimal degrees if navUnits are
degrees, otherwise zero.

Appendix A: Q-MIPS File Format