Section 6 Target Tracking and AIS 6-82
6.14.2 TT List
Item Description
ID ID No. of tracked target
CPA Closest approach distance
TCPA Time up to closest approach distance
BCR Bow crossing distance
BCT Bow crossing time
COG or CTW COG: Course Over the Ground
CTW: Course Through Water
*In ground mode, COG is displayed. In water mode, CTW is displayed.
*Operates in fixed ground mode on the ECDIS screen.
SOG or STW SOG: Speed Over the Ground
STW: Speed Through Water
*In ground mode, SOG is displayed. In water mode, STW is displayed.
*Operates in fixed ground mode on the ECDIS screen.
BRG True direction
RNG Distance
Lat Latitude
Lon Longitude
Status Status
Initial ACQ: Initial acquisition in progress
Tracking: Acquisition in progress
Lost: Lost status
Danger: Dangerous ship
Memo
When the TT list is displayed initially, the items are sorted in the order of TCPA. When the
sequence is changed, the items are displayed in the last sort sequence.
Display Example
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