{
    "$schema": "http://json-schema.org/draft-07/schema#",
    "description": "A geographical coordinate on a planet (most commonly Earth).",
    "type": "object",
    
    "required": [ "latitude", "longitude" ],
    
    "properties": {
        
        "latitude": {
            "type": "number",
            "minimum": -90,
            "maximum": 90
        },
        
        "longitude": {
            "type": "number",
            "minimum": -180,
            "maximum": 180
        }
        
    },
    "additionalProperties": false    
}