8
TRACKER950 CHARTPLOTTER
Installation and Operation Manual
NAVMAN
Latitude and longitude
Latitude and longitude are displayed in degrees and minutes:
Navigation data
Data displayed on the TRACKER950 has three-letter names.
The boat is sailing from the start to the destination and has moved off the original plotted course from the
start to the destination.
BRG
Bearing to destination
Bearing to the destination from the boat.
COG
Course Over Ground
Direction in which the boat is moving over the ground. (Note - When
SOG < 0.2 knot COG is not updated.)
CTS
Course To Steer
Optimum course to steer to return to the original plotted course.
DTG
Distance To Go
Distance from the boat to the destination.
ETA
Expected Time of Arrival
At the destination, assuming that SOG and COG remain constant.
SOG
Speed Over Ground
Current boat speed over the ground. This is not necessarily the
same as the boat speed through the water nor the speed at which
it is approaching the destination.
STR
Steering
The difference between COG and CTS.
TTG
Time To Go
The estimated time to reach the destination.
XTE
Cross Track Error
The distance from the boat to the nearest point of the original plotted
course.
VMG
Velocity Made Good
The speed at which the boat is approaching the destination.
1-4 Navigation data
N or S of equator for
latitude
E or W of zero for longitude
Minutes, 0 to 60, to 3 decimal
places
Degrees
Minutes symbol
Degrees symbol
43
°
12.538
'
N
Current Boat
position
START
DESTINATION