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{
  "description": "A sampled 6-hour observation along a tropical cyclone track.",
  "properties": {
    "basin": {
      "description": "Basin code at this observation point",
      "type": "string",
      "x-ref-type": "Basin"
    },
    "datetime": {
      "description": "Observation datetime (ISO 8601)",
      "format": "date-time",
      "type": "string"
    },
    "lat": {
      "description": "Latitude in decimal degrees (positive = north)",
      "type": "number"
    },
    "lon": {
      "description": "Longitude in decimal degrees (positive = east)",
      "type": "number"
    },
    "pressureMb": {
      "description": "Central pressure in millibars",
      "type": [
        "number",
        "null"
      ]
    },
    "status": {
      "description": "Storm status code (e.g. TS, HU, TD, EX)",
      "type": [
        "string",
        "null"
      ]
    },
    "stormId": {
      "description": "IBTrACS Storm ID",
      "type": "string",
      "x-ref-type": "Storm"
    },
    "windKt": {
      "description": "Maximum sustained wind speed in knots",
      "type": [
        "number",
        "null"
      ]
    }
  },
  "required": [
    "stormId",
    "datetime",
    "lat",
    "lon",
    "basin"
  ],
  "title": "Track Point",
  "type": "object"
}