Tracks

Aircraft Tracks and Labels.

Overview

A track is a graphical representation of an aircraft position, provides essential information about the aircraft and facilitates recording of new information via mouse interaction.

Tracks may consist of a combination of the following features:

track symbol
leader line
track label
short route probe
velocity vector
history trails

Track States

Tracks can be presented in a number of states. Current state affects the type of track and label shown, and it’s colour. Strips are also coloured based on the associated track state.

Track state is decided based on combination of flight plan state and the flights relevance to your selected Sectors.

State	Meaning	Track Colour (Default Profile)
Jurisdiction	Controlled by you
Announced	Soon to affect your sectors (FDR not departed yet or inbound from adjacent airspace)
Handover In	Handoff proposed to you	(flashing)
Handover Out	Handoff proposed by you
Post Jurisdiction	Handover Out accepted	(flashing)
Preactive	FDR has not been activated (strip state only)
Ghost Jurisdiction	Controlled by another controller that is also one of your selected sectors (Shadow Mode)
Non Jurisdiction	All other tracks

When the invididual quick-look (IQL) tool is used on a track, the colour of the track changes:

State	Eurocat Australia Colour (Default Profile)
Jurisdiction
Others

IQL disables filters for an individual track.

The brightness of the track colours can be adjusted in the Display Settings window.

Track Symbols

The track symbol indicates the position of the aircraft and the source of that information.

The track symbol position is based on the best source of information available to vatSys. The order of precedence is as follows:

radar (SSR)
ADS-B
flight plan predicted position

The shape of the track symbol indicates the source of position information and special SSR codes.

Tracks	Symbols (Default Profile)
Primary Radar		Secondary Radar
Radar extrapolated position (coast)		SSR code 0001
SSR code 0100		SSR code 1200
SSR code 2000		ADS-B
ADS-B extrapolated position (coast)		Cancelled
Flight plan

Where a primary return is detected with a secondary return, a combined track is presented.

When an aircraft activates the IDENT feature of the transponder, the track symbol flashes cyan.

The “radar track cancelled” symbol is displayed when a track is no longer detected by radar. The history trails are removed one-by-one on each screen update and the cancelled symbol is removed after the history trails.

Labels

Track labels are displayed for all tracks, except filtered tracks and primary tracks. Track labels are connected to their respective track symbols by a leader line.

The position of track labels relative to their track symbols can be adjusted by RIGHT CLICK on the track symbol or level field in the track label. The draw order of track labels track labels must be manually adjusted so that they do not overlap and become obscured.

The type of label presented is determined by the available information for the track, and individual and global track display settings.

Note: All tables and diagrams below refer only to the default profile, Eurocat Australia, though label items may be used in other profiles.

Label Type

Tracks

Items (Default Profile)

Limited

Uncoupled Radar or ADS-B tracks

EMG	WARN
CALLSIGN
LVL

Quick-Tag

Uncoupled Radar or ADS-B tracks with quick tag

C	EMG	WARN
CALLSIGN
LVL	>	CFL	GS
OPDATA

Normal

Coupled or Flight Plan tracks

CPDLCMSG
C	RWY	EMG	WARN
CALLSIGN		+	W	*
LVL	>	CFL	F	GS	b
WXL		CLL		WXR
OPDATA

Extended

Coupled or Flight Plan tracks with Extended labels toggled

CPDLCMSG
C	RWY	EMG	WARN
CALLSIGN		+	W	*
LVL	>	CFL	F	GS	b
WXL		CLL		WXR
ADES		ATYPE		N
OPDATA

Extended - Shared

Coupled or Flight Plan tracks with Extended and Shared labels toggled

CPDLCMSG
C	RWY	EMG	WARN
CALLSIGN		+	W	*
LVL	>	CFL	F	GS	b
WXL		CLL		WXR
NEXT			NEXT+1
OPDATA

Label Fields	Content	Action
`CPDLCMSG`	Current unacknowledged CPDLC message	`LEFT CLICK` to open CPDLC Menu. `MIDDLE CLICK` to toggle display. `RIGHT CLICK` to open CPDLC Editor Window.
`C`	Togglable Coordination Prompt	`MIDDLE CLICK` to toggle display of C prompt.
`RWY`	Arrival or Departure Runway	`LEFT CLICK` to open Runway Menu
`EMG`	EMG (code 7700) or RAD (code 7600)	`MIDDLE CLICK` to acknowledge.
`WARN`	Highest priority current alert abbreviation See alerts	`MIDDLE CLICK` to acknowledge.
`CALLSIGN`	Callsign or SSR code	`LEFT CLICK` to open Callsign menu. `MIDDLE CLICK` to toggle extended label display. `RIGHT CLICK` to open SAR Window.
`+`	CPDLC status indicator (`+`, `-` or blank)	`LEFT CLICK` to open CPDLC Editor Window. `MIDDLE CLICK` to toggle CPDLCMSG display.
`W`	Wake turbulance category
`*`	Important information (STS/) contained in FDR	`LEFT CLICK` to open Flight Plan Window.
`LVL`	Mode C level or Pilot Reported LEVEL	`LEFT CLICK` to enter Pilot Reported Level (FP tracks only). `RIGHT CLICK` to position label.
`>`	Vertical direction indicator (positive `^`, negative `v`, cruise `>`)
`CFL`	Cleared flight level, colour toggleable	`LEFT CLICK` to open CFL Window. `MIDDLE CLICK` to toggle CFL colour.
`F`	Flight rule abbreviation
`GS`	2 digit rounded Groundspeed
`b`	ADS-B not flight planned indicator
`WXL`/`WXR`	Weather deviation clearance (local only)	`LEFT CLICK` to open Weather Diversion Menu.
`CLL`	Lower bound of a block Cleared Flight Level	`LEFT CLICK` to open CFL Window. `MIDDLE CLICK` to toggle CFL colour.
`ADES`	Destination
`ATYPE`	Aircraft Type
`N`	Performance Based Navigation capability (`A` RNP2 and RNP10/4, `2` RNP2, `4` RNP4, `5` RNAV5, `T` RNP10, `Z` none)
`NEXT`	Next route waypoint
`NEXT+1`	Next route waypoint + 1
`OPDATA`	Label Operational Data (scratchpad)	`LEFT CLICK` to edit Label Op Data. `RIGHT CLICK` to toggle display of WX/BLOCK label line.

Alerts

Alerts trigger an audible and visual warning on a track label. High priority alerts are shown with a solid red background in addition to yellow text.

Alert	Label Abbreviation	Priority	Default Criteria
Cleared Level Adherence Monitoring	CLAM	3	CFL is not `None`, `VSA` or `000` and; Maintaining: Mode C greater than `200FT` from CFL Change of Level: not commenced within `15 minutes`, or Vertical speed in the opposite direction to CFL
Danger Area Infringement Warning	DAIW	1	Radar trajectory will enter dangerous volume in `60 seconds`
Estimated Time Over	ETO	4	(Not yet implemented) Pilot estimated time over waypoint disagrees with system calculated time by more than `180 seconds`
Missed Position Report	MPR	4	`180 seconds` after waypoint ETO when MPR is armed
Minimum Safe Altitude Warning	MSAW	1	CFL is not `None`, `VSA` or `000` and radar trajectory will be within `600FT` of projected obstacle height in `60 seconds`
Medium Term Conflict Alert	MTCA	3	(Not yet implemented)
Route Adherence Monitoring	RAM	3	Radar track is outside of: `20NM` from departure and destination aerodrome, and `7NM` either side of route, and `14NM` radius of route waypoints
Search and Rescue	SAR	3	SAR Timer has expired. SAR Timer is automatically set to `ETA+10 minutes` when no arrival runway is selected
Short Term Conflict Alert	STCA	1	Radar trajectories of two or more radar tracks will be less than: Level (bound by CFL) `600FT`, or `1600FT` when non-RVSM applies Distance `2.1NM` for TMA volumes, or `4.8NM` for Enroute volumes In the next `60 seconds` for TMA volumes and `90 seconds` for Enroute volumes, and the trajectory is not within defined airport STCA inhibition areas.