First test smartCar Amps data by location

smcar1.geojson

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  "type": "FeatureCollection",
  "features": [
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      "type": "Feature",
      "properties": {
        "timestamp": "20201103T205247",
        "amps": "-0.7"
      },
      "geometry": {
        "type": "Point",
        "coordinates": [
          -81.687217,
          38.353772
        ]
      }
    },
    {
      "type": "Feature",
      "properties": {
        "timestamp": "20201103T205320",
        "amps": "-13.2"
      },
      "geometry": {
        "type": "Point",
        "coordinates": [
          -81.687205,
          38.354173
        ]
      }
    },
    {
      "type": "Feature",
      "properties": {
        "timestamp": "20201103T205344",
        "amps": "-0.4"
      },
      "geometry": {
        "type": "Point",
        "coordinates": [
          -81.686498,
          38.354755
        ]
      }
    },
    {
      "type": "Feature",
      "properties": {
        "timestamp": "20201103T205412",
        "amps": "-4.9"
      },
      "geometry": {
        "type": "Point",
        "coordinates": [
          -81.684602,
          38.354478
        ]
      }
    },
    {
      "type": "Feature",
      "properties": {
        "timestamp": "20201103T205441",
        "amps": "11.5"
      },
      "geometry": {
        "type": "Point",
        "coordinates": [
          -81.683737,
          38.355002
        ]
      }
    },
    {
      "type": "Feature",
      "properties": {
        "timestamp": "20201103T205509",
        "amps": "19.9"
      },
      "geometry": {
        "type": "Point",
        "coordinates": [
          -81.685703,
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        ]
      }
    },
    {
      "type": "Feature",
      "properties": {
        "timestamp": "20201103T205538",
        "amps": "-12.7"
      },
      "geometry": {
        "type": "Point",
        "coordinates": [
          -81.686453,
          38.356908
        ]
      }
    },
    {
      "type": "Feature",
      "properties": {
        "timestamp": "20201103T205606",
        "amps": "-5.9"
      },
      "geometry": {
        "type": "Point",
        "coordinates": [
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        ]
      }
    },
    {
      "type": "Feature",
      "properties": {
        "timestamp": "20201103T205635",
        "amps": "-25.2"
      },
      "geometry": {
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        "coordinates": [
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          38.353902
        ]
      }
    },
    {
      "type": "Feature",
      "properties": {
        "timestamp": "20201103T205704",
        "amps": "-20.4"
      },
      "geometry": {
        "type": "Point",
        "coordinates": [
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        ]
      }
    }
  ]
}