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                ],
                "item_type": {
                    "name": "antenna"
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            "item": {
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                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "INASAN",
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                    "email": "gnss@gfz-potsdam.de",
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                    "title": ""
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                "date_from": "2000-09-21 00:00:00",
                "date_to": "2004-09-21 23:59:00",
                "item_attributes": [
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                        "attribute": {
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                    "comment": "",
                    "email": "bradke@gfz-potsdam.de",
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                "date_from": "2004-09-22 00:00:00",
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                "item_attributes": [
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                    {
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                    {
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                ],
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        {
            "item": {
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                    "email": "bradke@gfz-potsdam.de",
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                    "comment": "",
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                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
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                "date_from": "2004-09-22 00:00:00",
                "date_to": "2004-11-21 23:59:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "radome_type"
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                    {
                        "attribute": {
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                ],
                "item_type": {
                    "name": "radome"
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            }
        },
        {
            "item": {
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                "contact_as_producer": {
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                ],
                "item_type": {
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        },
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            "item": {
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                ],
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        },
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                            "name": "sensor_model"
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                        "date_from": "2004-02-16 00:00:00",
                        "date_to": null,
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "PTU200 Class A PTU transmitter"
                    },
                    {
                        "attribute": {
                            "name": "manufacturer"
                        },
                        "date_from": "2004-02-16 00:00:00",
                        "date_to": null,
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "Vaisala"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2004-02-16 00:00:00",
                        "date_to": null,
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "x3710004"
                    },
                    {
                        "attribute": {
                            "name": "data_sampling_interval"
                        },
                        "date_from": "2004-02-16 00:00:00",
                        "date_to": null,
                        "value_date": null,
                        "value_numeric": 600,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "accuracy"
                        },
                        "date_from": "2004-02-16 00:00:00",
                        "date_to": null,
                        "value_date": null,
                        "value_numeric": 0.1,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "height_diff_to_ant"
                        },
                        "date_from": "2004-02-16 00:00:00",
                        "date_to": null,
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "calibration_date"
                        },
                        "date_from": "2004-02-16 00:00:00",
                        "date_to": null,
                        "value_date": "2002-09-11 00:00:00",
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "pressure_sensor"
                }
            }
        },
        {
            "item": {
                "comment": "The sensor is part of the\r\nmeteo station",
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "GFZ",
                        "address": "Telegrafenberg A17\nD-14473 Potsdam\nGermany",
                        "infos": "",
                        "name": "GFZ Helmholtz Centre for Geosciences",
                        "www": ""
                    },
                    "comment": "",
                    "email": "bradke@gfz-potsdam.de",
                    "name": "Markus Bradke",
                    "phone": "+49 331 2881182",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "INASAN",
                        "address": "Pyatnitskaya Str. 48\n119017 Moscow\nRussian Federation (the)",
                        "infos": "",
                        "name": "Institute of Astronomy of the Russian Academy of Sciences",
                        "www": ""
                    },
                    "comment": "",
                    "email": "gnss@gfz-potsdam.de",
                    "name": "GFZ Network Operator",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "1999-08-08 00:00:00",
                "date_to": "2004-02-16 00:00:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "sensor_model"
                        },
                        "date_from": "1999-08-08 00:00:00",
                        "date_to": "2004-02-16 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "TM 200"
                    },
                    {
                        "attribute": {
                            "name": "manufacturer"
                        },
                        "date_from": "1999-08-08 00:00:00",
                        "date_to": "2004-02-16 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "TimeTech"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "1999-08-08 00:00:00",
                        "date_to": "2004-02-16 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "data_sampling_interval"
                        },
                        "date_from": "1999-08-08 00:00:00",
                        "date_to": "2004-02-16 00:00:00",
                        "value_date": null,
                        "value_numeric": 600,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "accuracy"
                        },
                        "date_from": "1999-08-08 00:00:00",
                        "date_to": "2004-02-16 00:00:00",
                        "value_date": null,
                        "value_numeric": 0.25,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "aspiration"
                        },
                        "date_from": "1999-08-08 00:00:00",
                        "date_to": "2004-02-16 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "height_diff_to_ant"
                        },
                        "date_from": "1999-08-08 00:00:00",
                        "date_to": "2004-02-16 00:00:00",
                        "value_date": null,
                        "value_numeric": -0.1,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "calibration_date"
                        },
                        "date_from": "1999-08-08 00:00:00",
                        "date_to": "2004-02-16 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "temperature_sensor"
                }
            }
        },
        {
            "item": {
                "comment": "The temperatur sensor is part of a Vaisala\r\nPTU200 meteo station",
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "GFZ",
                        "address": "Telegrafenberg A17\nD-14473 Potsdam\nGermany",
                        "infos": "",
                        "name": "GFZ Helmholtz Centre for Geosciences",
                        "www": ""
                    },
                    "comment": "",
                    "email": "bradke@gfz-potsdam.de",
                    "name": "Markus Bradke",
                    "phone": "+49 331 2881182",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "INASAN",
                        "address": "Pyatnitskaya Str. 48\n119017 Moscow\nRussian Federation (the)",
                        "infos": "",
                        "name": "Institute of Astronomy of the Russian Academy of Sciences",
                        "www": ""
                    },
                    "comment": "",
                    "email": "gnss@gfz-potsdam.de",
                    "name": "GFZ Network Operator",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2004-02-16 00:00:00",
                "date_to": null,
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "sensor_model"
                        },
                        "date_from": "2004-02-16 00:00:00",
                        "date_to": null,
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "PTU200 PTU transmitter"
                    },
                    {
                        "attribute": {
                            "name": "manufacturer"
                        },
                        "date_from": "2004-02-16 00:00:00",
                        "date_to": null,
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "Vaisala"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2004-02-16 00:00:00",
                        "date_to": null,
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "x3710004"
                    },
                    {
                        "attribute": {
                            "name": "data_sampling_interval"
                        },
                        "date_from": "2004-02-16 00:00:00",
                        "date_to": null,
                        "value_date": null,
                        "value_numeric": 600,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "accuracy"
                        },
                        "date_from": "2004-02-16 00:00:00",
                        "date_to": null,
                        "value_date": null,
                        "value_numeric": 0.1,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "aspiration"
                        },
                        "date_from": "2004-02-16 00:00:00",
                        "date_to": null,
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "NATURAL"
                    },
                    {
                        "attribute": {
                            "name": "height_diff_to_ant"
                        },
                        "date_from": "2004-02-16 00:00:00",
                        "date_to": null,
                        "value_date": null,
                        "value_numeric": -0.1,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "calibration_date"
                        },
                        "date_from": "2004-02-16 00:00:00",
                        "date_to": null,
                        "value_date": "2002-09-12 00:00:00",
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "temperature_sensor"
                }
            }
        }
    ],
    "station_networks": [
        {
            "name": "EPN"
        },
        {
            "name": "EPOS"
        },
        {
            "name": "GFZ"
        },
        {
            "name": "IGS"
        }
    ],
    "station_type": "GNSS Continuous"
}