Metrics
Below is a list of all standard Njord metric names. These have special meaning in the software, are used to calculate derived metrics, and some features are only enabled when these metrics are present.
When loading data from any data source, we will rename data to match these standard metrics. When importing data in CSV format, name the CSV columns to match the metric names below for the best experience.
Depending on the data source, you can include any number of additional metrics with custom names. They will all be shown in the software, but don't carry any special meaning.
| Name | Description | Unit | Calculated |
|---|---|---|---|
AWA | Apparent wind angle | degrees | |
AWA_Abs | Apparent wind angle (absolute) | degrees | yes |
AWS | Apparent wind speed | knots | |
BelowLine | Distance from boat's bow to start line (perpendicular), from log file | meters | |
BelowLineCalc | BelowLine, calculated from start line entered for race | meters | yes |
BoatSpeed (BSP) | Boat speed (speed through water) | knots | |
BoatSpeedPercOfPolar (Polar%) | percent | yes | |
BoatSpeedPercOfTarget (BSP%) | percent | yes | |
COG | Course over ground (true or magnetic) | degrees | |
COG_Mag | Course over ground (magnetic) | degrees | yes |
COG_True | Course over ground (true) | degrees | yes |
CurrentDirection | Direction of current (set) | degrees | |
CurrentSpeed | Speed of current (drift) | knots | |
Foiling | 1 if foiling, 0 if not foiling | ||
Forestay | |||
Heading | Heading (true or magnetic) | degrees | |
Heading_Mag | Heading (magnetic) | degrees | yes |
Heading_True | Heading (true) | degrees | yes |
Heel | Heel (roll) | degrees | |
Heel_Abs | Heel (absolute) | degrees | yes |
Heel_Lwd | Heel to leeward | degrees | yes |
Lat | Latitude (as recorded) | degrees | |
LatBow | Latitude of boat's bow | degrees | yes |
LatCenter | Latitude of the center of the boat | degrees | yes |
LatStern | Latitude of boat's stern | degrees | yes |
Leeway | degrees | ||
Lon | Longitude (as recorded) | degrees | |
LonBow | Longitude of boat's bow | degrees | yes |
LonCenter | Longitude of the center of the boat | degrees | yes |
LonStern | Longitude of boat's stern | degrees | yes |
MagneticVariation | degrees | yes | |
PolarBoatSpeed | knots | yes | |
Portlat | Latitude of port / pin end of line | degrees | |
Portlon | Longitude of port / pin end of line | degrees | |
ROT | Rate of turn | degrees per second | yes |
Rudder | Rudder | degrees | |
Rudder_Abs | Rudder (absolute) | degrees | yes |
Rudder_Lwd | Rudder to leeward | degrees | yes |
SOG | Speed over ground | knots | |
Stbdlat | Latitude of starboard / RC end of line | degrees | |
Stbdlon | Longitude of starboard / RC end of line | degrees | |
TargetBoatSpeed | knots | yes | |
TargetForestay | yes | ||
TargetHeel | degrees | yes | |
TargetRudder | degrees | yes | |
TargetTrim | degrees | yes | |
TargetTWA | degrees | yes | |
TargetTWADelta | degrees | yes | |
TargetVMG | knots | yes | |
Target<Anything> | Target for any other <Anything> metric | ||
TimeLocal | Seconds since midnight (local time) | seconds | yes |
TimeToBurn | seconds | ||
TimeToGun | Time to gun, from log file | seconds | |
TimeToGunCalc | Time to gun, calculated from race start time | seconds | yes |
TimeToLine | seconds | ||
TimeUTC | Seconds since midnight (UTC) | seconds | yes |
Trim | Trim (pitch) | degrees | |
Trim_Abs | degrees | yes | |
TWA | True wind angle | degrees | |
TWA_Abs | degrees | yes | |
TWD | True wind direction | degrees | |
TWS | True wind speed | knots | |
VMC | Velocity made on course | knots | yes |
VMG | Velocity made good | knots | yes |
VMGPercOfTarget (VMG%) | percent | yes | |
XTE | Cross track error | meters | yes |
Yaw | degrees |