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                        "abbreviation": "DTU Space",
                        "address": "Elektrovej Building 328\nDenmark DK-2800 Kongens Lyngby\nDenmark",
                        "infos": "",
                        "name": "National Space Institute\r\nTechnical University of Denmark",
                        "www": ""
                    },
                    "comment": "",
                    "email": "dtuspace-gnss@space.dtu.dk",
                    "name": "DTU Space GNSS Team",
                    "phone": "+45 45 25 95 00",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2002-09-25 00:00:00",
                "date_to": null,
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "standard_type"
                        },
                        "date_from": "2002-09-25 00:00:00",
                        "date_to": null,
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "EXTERNAL RUBIDIUM"
                    },
                    {
                        "attribute": {
                            "name": "input_frequency"
                        },
                        "date_from": "2002-09-25 00:00:00",
                        "date_to": null,
                        "value_date": null,
                        "value_numeric": 5,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "frequency_standard"
                }
            }
        },
        {
            "item": {
                "comment": "Serial U5020003",
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "KDS",
                        "address": "Sankt Kjelds Plads 11\nDK-2100 Copenhagen \u00d8\nDenmark",
                        "infos": "",
                        "name": "The Danish Agency for Climate Data",
                        "www": ""
                    },
                    "comment": "",
                    "email": "gnss@kds.dk",
                    "name": "KDS GNSS Team",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "DTU Space",
                        "address": "Elektrovej Building 328\nDenmark DK-2800 Kongens Lyngby\nDenmark",
                        "infos": "",
                        "name": "National Space Institute\r\nTechnical University of Denmark",
                        "www": ""
                    },
                    "comment": "",
                    "email": "dtuspace-gnss@space.dtu.dk",
                    "name": "DTU Space GNSS Team",
                    "phone": "+45 45 25 95 00",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2001-09-01 00:00:00",
                "date_to": "2005-09-15 00:00:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "sensor_model"
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                        "date_from": "2001-09-01 00:00:00",
                        "date_to": "2005-09-15 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "HMP45D"
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                    {
                        "attribute": {
                            "name": "manufacturer"
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                        "date_from": "2001-09-01 00:00:00",
                        "date_to": "2005-09-15 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "VAISALA"
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                    {
                        "attribute": {
                            "name": "serial_number"
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                        "date_from": "2001-09-01 00:00:00",
                        "date_to": "2005-09-15 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "data_sampling_interval"
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                        "date_from": "2001-09-01 00:00:00",
                        "date_to": "2005-09-15 00:00:00",
                        "value_date": null,
                        "value_numeric": 300,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "accuracy"
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                        "date_from": "2001-09-01 00:00:00",
                        "date_to": "2005-09-15 00:00:00",
                        "value_date": null,
                        "value_numeric": 2,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "aspiration"
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                        "date_from": "2001-09-01 00:00:00",
                        "date_to": "2005-09-15 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "height_diff_to_ant"
                        },
                        "date_from": "2001-09-01 00:00:00",
                        "date_to": "2005-09-15 00:00:00",
                        "value_date": null,
                        "value_numeric": 5.1,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "calibration_date"
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                        "date_from": "2001-09-01 00:00:00",
                        "date_to": "2005-09-15 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "humidity_sensor"
                }
            }
        },
        {
            "item": {
                "comment": "Serial A3310004",
                "contact_as_owner": {
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                        "abbreviation": "KDS",
                        "address": "Sankt Kjelds Plads 11\nDK-2100 Copenhagen \u00d8\nDenmark",
                        "infos": "",
                        "name": "The Danish Agency for Climate Data",
                        "www": ""
                    },
                    "comment": "",
                    "email": "gnss@kds.dk",
                    "name": "KDS GNSS Team",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "DTU Space",
                        "address": "Elektrovej Building 328\nDenmark DK-2800 Kongens Lyngby\nDenmark",
                        "infos": "",
                        "name": "National Space Institute\r\nTechnical University of Denmark",
                        "www": ""
                    },
                    "comment": "",
                    "email": "dtuspace-gnss@space.dtu.dk",
                    "name": "DTU Space GNSS Team",
                    "phone": "+45 45 25 95 00",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2005-09-15 00:00:00",
                "date_to": null,
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "sensor_model"
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                        "date_from": "2005-09-15 00:00:00",
                        "date_to": null,
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                        "value_numeric": null,
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                    {
                        "attribute": {
                            "name": "manufacturer"
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                        "date_to": null,
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "VAISALA"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
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                        "date_from": "2005-09-15 00:00:00",
                        "date_to": null,
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                        "value_numeric": null,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "data_sampling_interval"
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                        "date_from": "2005-09-15 00:00:00",
                        "date_to": null,
                        "value_date": null,
                        "value_numeric": 300,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "accuracy"
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                        "date_from": "2005-09-15 00:00:00",
                        "date_to": null,
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                        "value_numeric": 2,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "aspiration"
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                        "date_from": "2005-09-15 00:00:00",
                        "date_to": null,
                        "value_date": null,
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                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "height_diff_to_ant"
                        },
                        "date_from": "2005-09-15 00:00:00",
                        "date_to": null,
                        "value_date": null,
                        "value_numeric": 5.1,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "calibration_date"
                        },
                        "date_from": "2005-09-15 00:00:00",
                        "date_to": null,
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                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "humidity_sensor"
                }
            }
        },
        {
            "item": {
                "comment": "Serial U5120003",
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "KDS",
                        "address": "Sankt Kjelds Plads 11\nDK-2100 Copenhagen \u00d8\nDenmark",
                        "infos": "",
                        "name": "The Danish Agency for Climate Data",
                        "www": ""
                    },
                    "comment": "",
                    "email": "gnss@kds.dk",
                    "name": "KDS GNSS Team",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "DTU Space",
                        "address": "Elektrovej Building 328\nDenmark DK-2800 Kongens Lyngby\nDenmark",
                        "infos": "",
                        "name": "National Space Institute\r\nTechnical University of Denmark",
                        "www": ""
                    },
                    "comment": "",
                    "email": "dtuspace-gnss@space.dtu.dk",
                    "name": "DTU Space GNSS Team",
                    "phone": "+45 45 25 95 00",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2001-09-01 00:00:00",
                "date_to": "2008-08-12 00:00:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "sensor_model"
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                        "date_to": "2008-08-12 00:00:00",
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                    {
                        "attribute": {
                            "name": "manufacturer"
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                    {
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                        "value_date": null,
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                    },
                    {
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                            "name": "data_sampling_interval"
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                        "date_from": "2001-09-01 00:00:00",
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                    {
                        "attribute": {
                            "name": "accuracy"
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                        "date_from": "2001-09-01 00:00:00",
                        "date_to": "2008-08-12 00:00:00",
                        "value_date": null,
                        "value_numeric": 0.15,
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                    },
                    {
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                        "value_date": null,
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                    },
                    {
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                        "date_from": "2001-09-01 00:00:00",
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                    }
                ],
                "item_type": {
                    "name": "pressure_sensor"
                }
            }
        },
        {
            "item": {
                "comment": "Serial U5020002",
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                        "address": "Sankt Kjelds Plads 11\nDK-2100 Copenhagen \u00d8\nDenmark",
                        "infos": "",
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                        "www": ""
                    },
                    "comment": "",
                    "email": "gnss@kds.dk",
                    "name": "KDS GNSS Team",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
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                        "abbreviation": "DTU Space",
                        "address": "Elektrovej Building 328\nDenmark DK-2800 Kongens Lyngby\nDenmark",
                        "infos": "",
                        "name": "National Space Institute\r\nTechnical University of Denmark",
                        "www": ""
                    },
                    "comment": "",
                    "email": "dtuspace-gnss@space.dtu.dk",
                    "name": "DTU Space GNSS Team",
                    "phone": "+45 45 25 95 00",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2008-08-12 00:00:00",
                "date_to": null,
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "sensor_model"
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                    {
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                    {
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                    {
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                    {
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                    }
                ],
                "item_type": {
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                }
            }
        },
        {
            "item": {
                "comment": "Serial U5120003",
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                        "address": "Sankt Kjelds Plads 11\nDK-2100 Copenhagen \u00d8\nDenmark",
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                    },
                    "comment": "",
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                    "name": "KDS GNSS Team",
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                },
                "contact_as_producer": {
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                    },
                    "comment": "",
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                    "role": "metadata_custodian",
                    "title": ""
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                "date_to": "2005-09-15 00:00:00",
                "item_attributes": [
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                    {
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                    }
                ],
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        },
        {
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                "date_to": null,
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                ],
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    "station_type": "GNSS Continuous"
}