{
  "vessels": {
    "urn:mrn:signalk:uuid:7980c650-6871-45d5-be0f-205d2efadacc": {
      "uuid": "urn:mrn:signalk:uuid:7980c650-6871-45d5-be0f-205d2efadacc",
      "name": "McBoatFace",
      "navigation": {
        "position": {
          "value": {
            "longitude": 24.7354072,
            "latitude": 59.722222
          },
          "$source": "can1.160",
          "timestamp": "2014-08-15T19:01:32.025Z",
          "pgn": 129025
        },
        "datetime": {
          "meta": {
            "description": "Time and Date from the GNSS Positioning System"
          },
          "value": "2014-08-15T19:01:31.21200Z",
          "$source": "can1.160",
          "timestamp": "2014-08-15T19:01:31.617Z",
          "pgn": 126992
        },
        "speedThroughWater": {
          "value": 3.34,
          "$source": "can1.115",
          "timestamp": "2014-08-15T19:01:31.290Z",
          "pgn": 128259
        },
        "trip": {
          "log": {
            "value": 80247,
            "$source": "can1.115",
            "timestamp": "2014-08-15T19:01:31.954Z",
            "pgn": 128275
          }
        },
        "log": {
          "value": 17441395,
          "$source": "can1.115",
          "timestamp": "2014-08-15T19:01:31.954Z",
          "pgn": 128275
        },
        "speedOverGround": {
          "value": 3.32,
          "$source": "can1.160",
          "timestamp": "2014-08-15T19:01:32.023Z",
          "pgn": 130577
        },
        "courseOverGroundTrue": {
          "value": 3.461,
          "$source": "can1.160",
          "timestamp": "2014-08-15T19:01:32.023Z",
          "pgn": 130577
        },
        "headingTrue": {
          "value": 3.5535,
          "$source": "can1.160",
          "timestamp": "2014-08-15T19:01:31.346Z",
          "pgn": 127250
        },
        "magneticVariation": {
          "value": 0.1414,
          "$source": "can1.160",
          "timestamp": "2014-08-15T19:01:31.346Z",
          "pgn": 127250
        },
        "courseGreatCircle": {
          "activeRoute": {
            "href": {
              "value": "/resources/routes/f273bede-706d-40cb-bfd2-775499e40653",
              "$source": "courseApi",
              "timestamp": "2024-10-02T13:45:12.268Z"
            },
            "startTime": "2024-10-02T13:45:12.264Z",
          },
          "nextPoint": {
            "value": {
              "type": {
                "meta": {},
                "value": "RoutePoint",
                "$source": "courseApi",
                "timestamp": "2024-10-02T13:45:12.268Z"
              }
            },
            "position": {
              "meta": {},
              "value": {
                "latitude": 59.67512773750016,
                "longitude": 24.69305084158094
              },
              "$source": "courseApi",
              "timestamp": "2024-10-02T13:45:12.268Z"
            },
            "arrivalCircle": {
              "meta": {},
              "value": 0,
              "$source": "courseApi",
              "timestamp": "2024-10-02T13:45:12.268Z"
            }
          },
          "previousPoint": {
            "position": {
              "meta": {
                "description": "The position of lastPoint in two dimensions",
                "properties": {
                  "longitude": {
                    "type": "number",
                    "description": "Longitude",
                    "units": "deg",
                    "example": 4.98765245
                  },
                  "latitude": {
                    "type": "number",
                    "description": "Latitude",
                    "units": "deg",
                    "example": 52.0987654
                  },
                  "altitude": {
                    "type": "number",
                    "description": "Altitude",
                    "units": "m"
                  }
                }
              },
              "value": {
                "longitude": 24.7351314,
                "latitude": 59.7217554
              },
              "$source": "courseApi",
              "timestamp": "2024-10-02T13:45:12.268Z"
            },
            "value": {
              "type": {
                "meta": {},
                "value": "VesselPosition",
                "$source": "courseApi",
                "timestamp": "2024-10-02T13:45:12.268Z"
              }
            }
          }
        },
        "courseRhumbline": {
          "activeRoute": {
            "href": {
              "meta": {
                "description": "A reference (URL) to the presently active route, in resources."
              },
              "value": "/resources/routes/f273bede-706d-40cb-bfd2-775499e40653",
              "$source": "courseApi",
              "timestamp": "2024-10-02T13:45:12.268Z"
            },
            "startTime": {
              "meta": {
                "description": "The time this route was activated"
              },
              "value": "2024-10-02T13:45:12.264Z",
              "$source": "courseApi",
              "timestamp": "2024-10-02T13:45:12.268Z"
            }
          },
          "nextPoint": {
            "value": {
              "href": {
                "meta": {},
                "value": null,
                "$source": "courseApi",
                "timestamp": "2024-10-02T13:45:12.268Z"
              },
              "type": {
                "meta": {},
                "value": "RoutePoint",
                "$source": "courseApi",
                "timestamp": "2024-10-02T13:45:12.268Z"
              }
            },
            "position": {
              "meta": {},
              "value": {
                "latitude": 59.67512773750016,
                "longitude": 24.69305084158094
              },
              "$source": "courseApi",
              "timestamp": "2024-10-02T13:45:12.268Z"
            },
            "arrivalCircle": {
              "meta": {},
              "value": 0,
              "$source": "courseApi",
              "timestamp": "2024-10-02T13:45:12.268Z"
            }
          },
          "previousPoint": {
            "position": {
              "meta": {
                "description": "The position of lastPoint in two dimensions",
                "properties": {
                  "longitude": {
                    "type": "number",
                    "description": "Longitude",
                    "units": "deg",
                    "example": 4.98765245
                  },
                  "latitude": {
                    "type": "number",
                    "description": "Latitude",
                    "units": "deg",
                    "example": 52.0987654
                  },
                  "altitude": {
                    "type": "number",
                    "description": "Altitude",
                    "units": "m"
                  }
                }
              },
              "value": {
                "longitude": 24.7351314,
                "latitude": 59.7217554
              },
              "$source": "courseApi",
              "timestamp": "2024-10-02T13:45:12.268Z"
            },
            "value": {
              "type": {
                "meta": {},
                "value": "VesselPosition",
                "$source": "courseApi",
                "timestamp": "2024-10-02T13:45:12.268Z"
              }
            }
          }
        },
        "course": {
          "calcValues": {
            "calcMethod": {
              "meta": {
                "description": "Calculation type used (GreatCircle or Rhumbline)."
              },
              "value": "GreatCircle",
              "$source": "course-provider",
              "timestamp": "2024-10-02T19:03:06.540Z"
            },
            "bearingTrackTrue": {
              "meta": {
                "description": "The bearing of a line between previousPoint and nextPoint, relative to true north.",
                "units": "rad"
              },
              "value": 3.5692017850905313,
              "$source": "course-provider",
              "timestamp": "2024-10-02T19:03:06.540Z"
            },
            "bearingTrackMagnetic": {
              "meta": {
                "description": "The bearing of a line between previousPoint and nextPoint, relative to magnetic north.",
                "units": "rad"
              },
              "value": 3.7106017850905313,
              "$source": "course-provider",
              "timestamp": "2024-10-02T19:03:06.540Z"
            },
            "crossTrackError": {
              "meta": {
                "description": "The distance from the vessel's present position to the closest point on a line (track) between previousPoint and nextPoint. A negative number indicates that the vessel is currently to the left of this line (and thus must steer right to compensate), a positive number means the vessel is to the right of the line (steer left to compensate).",
                "units": "m"
              },
              "value": 7.445808293426564,
              "$source": "course-provider",
              "timestamp": "2024-10-02T19:03:06.540Z"
            },
            "previousPoint": {
              "distance": {
                "meta": {
                  "description": "The distance in meters between the vessel's present position and the previousPoint.",
                  "units": "m"
                },
                "value": 54.13862750114139,
                "$source": "course-provider",
                "timestamp": "2024-10-02T19:03:06.540Z"
              }
            },
            "distance": {
              "meta": {
                "description": "The distance in meters between the vessel's present position and the nextPoint.",
                "units": "m"
              },
              "value": 5750.5951760268945,
              "$source": "course-provider",
              "timestamp": "2024-10-02T19:03:06.540Z"
            },
            "bearingTrue": {
              "meta": {
                "description": "The bearing of a line between the vessel's current position and nextPoint, relative to true north.",
                "units": "rad"
              },
              "value": 3.5679111529044167,
              "$source": "course-provider",
              "timestamp": "2024-10-02T19:03:06.540Z"
            },
            "bearingMagnetic": {
              "meta": {
                "description": "The bearing of a line between the vessel's current position and nextPoint, relative to magnetic north.",
                "units": "rad"
              },
              "value": 3.7093111529044167,
              "$source": "course-provider",
              "timestamp": "2024-10-02T19:03:06.540Z"
            },
            "velocityMadeGood": {
              "meta": {
                "description": "The velocity component of the vessel towards the nextPoint.",
                "units": "m/s"
              },
              "value": 3.31965525496195,
              "$source": "course-provider",
              "timestamp": "2024-10-02T19:03:06.540Z"
            },
            "timeToGo": {
              "meta": {
                "description": "Time in seconds to reach nextPoint's perpendicular) with current speed & direction.",
                "units": "s"
              },
              "value": 1732.286,
              "$source": "course-provider",
              "timestamp": "2024-10-02T19:03:06.540Z"
            },
            "estimatedTimeOfArrival": {
              "meta": {
                "description": "The estimated time of arrival at nextPoint position.",
                "units": "s"
              },
              "value": "2014-08-15T19:30:23.250Z",
              "$source": "course-provider",
              "timestamp": "2024-10-02T19:03:06.540Z"
            },
            "targetSpeed": {
              "meta": {
                "description": "The average speed required to arrive at the destination at the targetArrivalTime.",
                "units": "m/s"
              },
              "value": null,
              "$source": "course-provider",
              "timestamp": "2024-10-02T19:03:06.540Z"
            }
          }
        }
      },
      "performance": {
        "velocityMadeGoodToWaypoint": {
          "meta": {
            "units": "m/s",
            "description": "Data should be of type number."
          },
          "value": 3.31965525496195,
          "$source": "course-provider",
          "timestamp": "2024-10-02T19:03:06.540Z"
        }
      }
    }
  }
}