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                    },
                    {
                        "attribute": {
                            "name": "marker_arp_east_ecc"
                        },
                        "date_from": "2005-01-01 00:00:00",
                        "date_to": "2014-10-06 09:00:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "alignment_from_true_n"
                        },
                        "date_from": "2005-01-01 00:00:00",
                        "date_to": "2014-10-06 09:00:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "antenna_cable_type"
                        },
                        "date_from": "2005-01-01 00:00:00",
                        "date_to": "2014-10-06 09:00:00",
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                        "value_numeric": null,
                        "value_varchar": "Trimble RG213"
                    },
                    {
                        "attribute": {
                            "name": "antenna_cable_length"
                        },
                        "date_from": "2005-01-01 00:00:00",
                        "date_to": "2014-10-06 09:00:00",
                        "value_date": null,
                        "value_numeric": 20,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "antenna"
                }
            }
        },
        {
            "item": {
                "comment": "Exact date of installation not known",
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "RIGTC GOP",
                        "address": "Pecny 244\nCZ-25165 Ondrejov\nCzechia",
                        "infos": "",
                        "name": "Research Institute of Geodesy, Topography and Cartography",
                        "www": ""
                    },
                    "comment": "",
                    "email": "gop_oc@pecny.cz",
                    "name": "GOP operation center",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "VGHMUR",
                        "address": "Cs. Odboje 676\n51815 Dobruska\nCzechia",
                        "infos": "",
                        "name": "Military Geographic and Hydrometeorologic Office",
                        "www": ""
                    },
                    "comment": "",
                    "email": "mmpoc_cz@vghur.army.cz",
                    "name": "Mr. Chief of GPS  Department",
                    "phone": "+420 973 257 845",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2005-01-01 00:00:00",
                "date_to": "2014-10-06 09:00:00",
                "item_attributes": [
                    {
                        "attribute": {
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                        "date_from": "2005-01-01 00:00:00",
                        "date_to": "2014-10-06 09:00:00",
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                        "value_varchar": "TZGD"
                    },
                    {
                        "attribute": {
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                        "date_from": "2005-01-01 00:00:00",
                        "date_to": "2014-10-06 09:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "radome"
                }
            }
        },
        {
            "item": {
                "comment": "Full SN: 31052616",
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "RIGTC GOP",
                        "address": "Pecny 244\nCZ-25165 Ondrejov\nCzechia",
                        "infos": "",
                        "name": "Research Institute of Geodesy, Topography and Cartography",
                        "www": ""
                    },
                    "comment": "",
                    "email": "gop_oc@pecny.cz",
                    "name": "GOP operation center",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "VGHMUR",
                        "address": "Cs. Odboje 676\n51815 Dobruska\nCzechia",
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                        "name": "Military Geographic and Hydrometeorologic Office",
                        "www": ""
                    },
                    "comment": "",
                    "email": "mmpoc_cz@vghur.army.cz",
                    "name": "Mr. Chief of GPS  Department",
                    "phone": "+420 973 257 845",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2014-10-06 11:00:00",
                "date_to": "2018-10-16 08:00:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "antenna_type"
                        },
                        "date_from": "2014-10-06 11:00:00",
                        "date_to": "2018-10-16 08:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "TRM57971.00"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2014-10-06 11:00:00",
                        "date_to": "2018-10-16 08:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "52616"
                    },
                    {
                        "attribute": {
                            "name": "antenna_reference_point"
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                        "date_from": "2014-10-06 11:00:00",
                        "date_to": "2018-10-16 08:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "BAM"
                    },
                    {
                        "attribute": {
                            "name": "marker_arp_up_ecc"
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                        "date_from": "2014-10-06 11:00:00",
                        "date_to": "2018-10-16 08:00:00",
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                        "value_numeric": 0.0587,
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                    {
                        "attribute": {
                            "name": "marker_arp_north_ecc"
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                        "date_from": "2014-10-06 11:00:00",
                        "date_to": "2018-10-16 08:00:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "marker_arp_east_ecc"
                        },
                        "date_from": "2014-10-06 11:00:00",
                        "date_to": "2018-10-16 08:00:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "alignment_from_true_n"
                        },
                        "date_from": "2014-10-06 11:00:00",
                        "date_to": "2018-10-16 08:00:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "antenna_cable_type"
                        },
                        "date_from": "2014-10-06 11:00:00",
                        "date_to": "2018-10-16 08:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "Trimble RG213"
                    },
                    {
                        "attribute": {
                            "name": "antenna_cable_length"
                        },
                        "date_from": "2014-10-06 11:00:00",
                        "date_to": "2018-10-16 08:00:00",
                        "value_date": null,
                        "value_numeric": 20,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "antenna"
                }
            }
        },
        {
            "item": {
                "comment": "Full SN: 31052616",
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "RIGTC GOP",
                        "address": "Pecny 244\nCZ-25165 Ondrejov\nCzechia",
                        "infos": "",
                        "name": "Research Institute of Geodesy, Topography and Cartography",
                        "www": ""
                    },
                    "comment": "",
                    "email": "gop_oc@pecny.cz",
                    "name": "GOP operation center",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "VGHMUR",
                        "address": "Cs. Odboje 676\n51815 Dobruska\nCzechia",
                        "infos": "",
                        "name": "Military Geographic and Hydrometeorologic Office",
                        "www": ""
                    },
                    "comment": "",
                    "email": "mmpoc_cz@vghur.army.cz",
                    "name": "Mr. Chief of GPS  Department",
                    "phone": "+420 973 257 845",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2014-10-06 11:00:00",
                "date_to": "2018-10-16 08:00:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "radome_type"
                        },
                        "date_from": "2014-10-06 11:00:00",
                        "date_to": "2018-10-16 08:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "TZGD"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
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                        "date_from": "2014-10-06 11:00:00",
                        "date_to": "2018-10-16 08:00:00",
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                    }
                ],
                "item_type": {
                    "name": "radome"
                }
            }
        },
        {
            "item": {
                "comment": "Wrong antenna type TRM159800.00  SCIS in all RINEX files before 2022-08-26.",
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "RIGTC GOP",
                        "address": "Pecny 244\nCZ-25165 Ondrejov\nCzechia",
                        "infos": "",
                        "name": "Research Institute of Geodesy, Topography and Cartography",
                        "www": ""
                    },
                    "comment": "",
                    "email": "gop_oc@pecny.cz",
                    "name": "GOP operation center",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "VGHMUR",
                        "address": "Cs. Odboje 676\n51815 Dobruska\nCzechia",
                        "infos": "",
                        "name": "Military Geographic and Hydrometeorologic Office",
                        "www": ""
                    },
                    "comment": "",
                    "email": "mmpoc_cz@vghur.army.cz",
                    "name": "Mr. Chief of GPS  Department",
                    "phone": "+420 973 257 845",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2018-10-16 08:00:00",
                "date_to": null,
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "antenna_type"
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                        "date_from": "2018-10-16 08:00:00",
                        "date_to": null,
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "TRM159900.00"
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                    {
                        "attribute": {
                            "name": "serial_number"
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                        "date_from": "2018-10-16 08:00:00",
                        "date_to": null,
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "5821338217"
                    },
                    {
                        "attribute": {
                            "name": "antenna_reference_point"
                        },
                        "date_from": "2018-10-16 08:00:00",
                        "date_to": null,
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "BPA"
                    },
                    {
                        "attribute": {
                            "name": "marker_arp_up_ecc"
                        },
                        "date_from": "2018-10-16 08:00:00",
                        "date_to": null,
                        "value_date": null,
                        "value_numeric": 0.059,
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                    {
                        "attribute": {
                            "name": "marker_arp_north_ecc"
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                        "date_from": "2018-10-16 08:00:00",
                        "date_to": null,
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "marker_arp_east_ecc"
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                        "date_from": "2018-10-16 08:00:00",
                        "date_to": null,
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                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "alignment_from_true_n"
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                        "date_from": "2018-10-16 08:00:00",
                        "date_to": null,
                        "value_date": null,
                        "value_numeric": 0,
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                    },
                    {
                        "attribute": {
                            "name": "antenna_cable_type"
                        },
                        "date_from": "2018-10-16 08:00:00",
                        "date_to": null,
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "TRIMBLE"
                    },
                    {
                        "attribute": {
                            "name": "antenna_cable_length"
                        },
                        "date_from": "2018-10-16 08:00:00",
                        "date_to": null,
                        "value_date": null,
                        "value_numeric": 30,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "antenna"
                }
            }
        },
        {
            "item": {
                "comment": "Wrong antenna type TRM159800.00  SCIS in all RINEX files before 2022-08-26.",
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "RIGTC GOP",
                        "address": "Pecny 244\nCZ-25165 Ondrejov\nCzechia",
                        "infos": "",
                        "name": "Research Institute of Geodesy, Topography and Cartography",
                        "www": ""
                    },
                    "comment": "",
                    "email": "gop_oc@pecny.cz",
                    "name": "GOP operation center",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "VGHMUR",
                        "address": "Cs. Odboje 676\n51815 Dobruska\nCzechia",
                        "infos": "",
                        "name": "Military Geographic and Hydrometeorologic Office",
                        "www": ""
                    },
                    "comment": "",
                    "email": "mmpoc_cz@vghur.army.cz",
                    "name": "Mr. Chief of GPS  Department",
                    "phone": "+420 973 257 845",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2018-10-16 08:00:00",
                "date_to": null,
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "radome_type"
                        },
                        "date_from": "2018-10-16 08:00:00",
                        "date_to": null,
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "SCIS"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2018-10-16 08:00:00",
                        "date_to": null,
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "2444"
                    }
                ],
                "item_type": {
                    "name": "radome"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "RIGTC GOP",
                        "address": "Pecny 244\nCZ-25165 Ondrejov\nCzechia",
                        "infos": "",
                        "name": "Research Institute of Geodesy, Topography and Cartography",
                        "www": ""
                    },
                    "comment": "",
                    "email": "gop_oc@pecny.cz",
                    "name": "GOP operation center",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "VGHMUR",
                        "address": "Cs. Odboje 676\n51815 Dobruska\nCzechia",
                        "infos": "",
                        "name": "Military Geographic and Hydrometeorologic Office",
                        "www": ""
                    },
                    "comment": "",
                    "email": "mmpoc_cz@vghur.army.cz",
                    "name": "Mr. Chief of GPS  Department",
                    "phone": "+420 973 257 845",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2005-01-01 00:00:00",
                "date_to": null,
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "standard_type"
                        },
                        "date_from": "2005-01-01 00:00:00",
                        "date_to": null,
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "INTERNAL"
                    },
                    {
                        "attribute": {
                            "name": "input_frequency"
                        },
                        "date_from": "2005-01-01 00:00:00",
                        "date_to": null,
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "frequency_standard"
                }
            }
        },
        {
            "item": {
                "comment": "The sensor is 0.7 m above ref. point POL1",
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "RIGTC GOP",
                        "address": "Pecny 244\nCZ-25165 Ondrejov\nCzechia",
                        "infos": "",
                        "name": "Research Institute of Geodesy, Topography and Cartography",
                        "www": ""
                    },
                    "comment": "",
                    "email": "gop_oc@pecny.cz",
                    "name": "GOP operation center",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "VGHMUR",
                        "address": "Cs. Odboje 676\n51815 Dobruska\nCzechia",
                        "infos": "",
                        "name": "Military Geographic and Hydrometeorologic Office",
                        "www": ""
                    },
                    "comment": "",
                    "email": "mmpoc_cz@vghur.army.cz",
                    "name": "Mr. Chief of GPS  Department",
                    "phone": "+420 973 257 845",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2005-01-01 00:00:00",
                "date_to": "2014-10-06 00:00:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "sensor_model"
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                        "date_from": "2005-01-01 00:00:00",
                        "date_to": "2014-10-06 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "HG421.65"
                    },
                    {
                        "attribute": {
                            "name": "manufacturer"
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                        "date_from": "2005-01-01 00:00:00",
                        "date_to": "2014-10-06 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "COMET SYSTEM, CZ"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
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                        "date_from": "2005-01-01 00:00:00",
                        "date_to": "2014-10-06 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "9943050"
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                    {
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                            "name": "data_sampling_interval"
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                        "date_from": "2005-01-01 00:00:00",
                        "date_to": "2014-10-06 00:00:00",
                        "value_date": null,
                        "value_numeric": 900,
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                    },
                    {
                        "attribute": {
                            "name": "accuracy"
                        },
                        "date_from": "2005-01-01 00:00:00",
                        "date_to": "2014-10-06 00:00:00",
                        "value_date": null,
                        "value_numeric": 3,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "aspiration"
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                        "date_from": "2005-01-01 00:00:00",
                        "date_to": "2014-10-06 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "NATURAL"
                    },
                    {
                        "attribute": {
                            "name": "height_diff_to_ant"
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                        "date_from": "2005-01-01 00:00:00",
                        "date_to": "2014-10-06 00:00:00",
                        "value_date": null,
                        "value_numeric": 0.7,
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                    },
                    {
                        "attribute": {
                            "name": "calibration_date"
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                        "date_from": "2005-01-01 00:00:00",
                        "date_to": "2014-10-06 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "humidity_sensor"
                }
            }
        },
        {
            "item": {
                "comment": "The sensor is 0.02 m above ref. point POL1",
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "RIGTC GOP",
                        "address": "Pecny 244\nCZ-25165 Ondrejov\nCzechia",
                        "infos": "",
                        "name": "Research Institute of Geodesy, Topography and Cartography",
                        "www": ""
                    },
                    "comment": "",
                    "email": "gop_oc@pecny.cz",
                    "name": "GOP operation center",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "VGHMUR",
                        "address": "Cs. Odboje 676\n51815 Dobruska\nCzechia",
                        "infos": "",
                        "name": "Military Geographic and Hydrometeorologic Office",
                        "www": ""
                    },
                    "comment": "",
                    "email": "mmpoc_cz@vghur.army.cz",
                    "name": "Mr. Chief of GPS  Department",
                    "phone": "+420 973 257 845",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2014-10-06 00:00:00",
                "date_to": null,
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "sensor_model"
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                        "date_from": "2014-10-06 00:00:00",
                        "date_to": null,
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                        "value_varchar": "HMP45D"
                    },
                    {
                        "attribute": {
                            "name": "manufacturer"
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                        "date_from": "2014-10-06 00:00:00",
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                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "VAISALA, Finland"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2014-10-06 00:00:00",
                        "date_to": null,
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "A422032"
                    },
                    {
                        "attribute": {
                            "name": "data_sampling_interval"
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                        "date_to": null,
                        "value_date": null,
                        "value_numeric": 60,
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                    },
                    {
                        "attribute": {
                            "name": "accuracy"
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                        "date_from": "2014-10-06 00:00:00",
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                        "value_numeric": 2,
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                    },
                    {
                        "attribute": {
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                        "date_from": "2014-10-06 00:00:00",
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                    },
                    {
                        "attribute": {
                            "name": "height_diff_to_ant"
                        },
                        "date_from": "2014-10-06 00:00:00",
                        "date_to": null,
                        "value_date": null,
                        "value_numeric": 0.02,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "calibration_date"
                        },
                        "date_from": "2014-10-06 00:00:00",
                        "date_to": null,
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "humidity_sensor"
                }
            }
        },
        {
            "item": {
                "comment": "The sensor is 0.7 m above ref. point POL1",
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "RIGTC GOP",
                        "address": "Pecny 244\nCZ-25165 Ondrejov\nCzechia",
                        "infos": "",
                        "name": "Research Institute of Geodesy, Topography and Cartography",
                        "www": ""
                    },
                    "comment": "",
                    "email": "gop_oc@pecny.cz",
                    "name": "GOP operation center",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "VGHMUR",
                        "address": "Cs. Odboje 676\n51815 Dobruska\nCzechia",
                        "infos": "",
                        "name": "Military Geographic and Hydrometeorologic Office",
                        "www": ""
                    },
                    "comment": "",
                    "email": "mmpoc_cz@vghur.army.cz",
                    "name": "Mr. Chief of GPS  Department",
                    "phone": "+420 973 257 845",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2005-01-01 00:00:00",
                "date_to": "2014-10-06 00:00:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "sensor_model"
                        },
                        "date_from": "2005-01-01 00:00:00",
                        "date_to": "2014-10-06 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "TMAG 518 R3F"
                    },
                    {
                        "attribute": {
                            "name": "manufacturer"
                        },
                        "date_from": "2005-01-01 00:00:00",
                        "date_to": "2014-10-06 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "CRESSTO, CZ"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2005-01-01 00:00:00",
                        "date_to": "2014-10-06 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "1042\/98"
                    },
                    {
                        "attribute": {
                            "name": "data_sampling_interval"
                        },
                        "date_from": "2005-01-01 00:00:00",
                        "date_to": "2014-10-06 00:00:00",
                        "value_date": null,
                        "value_numeric": 900,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "accuracy"
                        },
                        "date_from": "2005-01-01 00:00:00",
                        "date_to": "2014-10-06 00:00:00",
                        "value_date": null,
                        "value_numeric": 0.3,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "height_diff_to_ant"
                        },
                        "date_from": "2005-01-01 00:00:00",
                        "date_to": "2014-10-06 00:00:00",
                        "value_date": null,
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                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "calibration_date"
                        },
                        "date_from": "2005-01-01 00:00:00",
                        "date_to": "2014-10-06 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "pressure_sensor"
                }
            }
        },
        {
            "item": {
                "comment": "The sensor is 0.95 m bellow ref. point POL1",
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "RIGTC GOP",
                        "address": "Pecny 244\nCZ-25165 Ondrejov\nCzechia",
                        "infos": "",
                        "name": "Research Institute of Geodesy, Topography and Cartography",
                        "www": ""
                    },
                    "comment": "",
                    "email": "gop_oc@pecny.cz",
                    "name": "GOP operation center",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "VGHMUR",
                        "address": "Cs. Odboje 676\n51815 Dobruska\nCzechia",
                        "infos": "",
                        "name": "Military Geographic and Hydrometeorologic Office",
                        "www": ""
                    },
                    "comment": "",
                    "email": "mmpoc_cz@vghur.army.cz",
                    "name": "Mr. Chief of GPS  Department",
                    "phone": "+420 973 257 845",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2014-10-06 00:00:00",
                "date_to": null,
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "sensor_model"
                        },
                        "date_from": "2014-10-06 00:00:00",
                        "date_to": null,
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "PTB220"
                    },
                    {
                        "attribute": {
                            "name": "manufacturer"
                        },
                        "date_from": "2014-10-06 00:00:00",
                        "date_to": null,
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "VAISALA, FINLAND"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2014-10-06 00:00:00",
                        "date_to": null,
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "W3550024"
                    },
                    {
                        "attribute": {
                            "name": "data_sampling_interval"
                        },
                        "date_from": "2014-10-06 00:00:00",
                        "date_to": null,
                        "value_date": null,
                        "value_numeric": 60,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "accuracy"
                        },
                        "date_from": "2014-10-06 00:00:00",
                        "date_to": null,
                        "value_date": null,
                        "value_numeric": 0.2,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "height_diff_to_ant"
                        },
                        "date_from": "2014-10-06 00:00:00",
                        "date_to": null,
                        "value_date": null,
                        "value_numeric": -0.95,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "calibration_date"
                        },
                        "date_from": "2014-10-06 00:00:00",
                        "date_to": null,
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "pressure_sensor"
                }
            }
        },
        {
            "item": {
                "comment": "The sensor is 0.7 m above ref. point POL1",
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "RIGTC GOP",
                        "address": "Pecny 244\nCZ-25165 Ondrejov\nCzechia",
                        "infos": "",
                        "name": "Research Institute of Geodesy, Topography and Cartography",
                        "www": ""
                    },
                    "comment": "",
                    "email": "gop_oc@pecny.cz",
                    "name": "GOP operation center",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "VGHMUR",
                        "address": "Cs. Odboje 676\n51815 Dobruska\nCzechia",
                        "infos": "",
                        "name": "Military Geographic and Hydrometeorologic Office",
                        "www": ""
                    },
                    "comment": "",
                    "email": "mmpoc_cz@vghur.army.cz",
                    "name": "Mr. Chief of GPS  Department",
                    "phone": "+420 973 257 845",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2005-01-01 00:00:00",
                "date_to": "2014-10-06 00:00:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "sensor_model"
                        },
                        "date_from": "2005-01-01 00:00:00",
                        "date_to": "2014-10-06 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "NS500"
                    },
                    {
                        "attribute": {
                            "name": "manufacturer"
                        },
                        "date_from": "2005-01-01 00:00:00",
                        "date_to": "2014-10-06 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "COMET SYSTEM, CZ"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2005-01-01 00:00:00",
                        "date_to": "2014-10-06 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "9938002"
                    },
                    {
                        "attribute": {
                            "name": "data_sampling_interval"
                        },
                        "date_from": "2005-01-01 00:00:00",
                        "date_to": "2014-10-06 00:00:00",
                        "value_date": null,
                        "value_numeric": 900,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "accuracy"
                        },
                        "date_from": "2005-01-01 00:00:00",
                        "date_to": "2014-10-06 00:00:00",
                        "value_date": null,
                        "value_numeric": 0.3,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "aspiration"
                        },
                        "date_from": "2005-01-01 00:00:00",
                        "date_to": "2014-10-06 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "NATURAL"
                    },
                    {
                        "attribute": {
                            "name": "height_diff_to_ant"
                        },
                        "date_from": "2005-01-01 00:00:00",
                        "date_to": "2014-10-06 00:00:00",
                        "value_date": null,
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                    },
                    {
                        "attribute": {
                            "name": "calibration_date"
                        },
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                        "date_to": "2014-10-06 00:00:00",
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                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "temperature_sensor"
                }
            }
        },
        {
            "item": {
                "comment": "The sensor is 0.02 m above ref. point POL1",
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "RIGTC GOP",
                        "address": "Pecny 244\nCZ-25165 Ondrejov\nCzechia",
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                        "name": "Research Institute of Geodesy, Topography and Cartography",
                        "www": ""
                    },
                    "comment": "",
                    "email": "gop_oc@pecny.cz",
                    "name": "GOP operation center",
                    "phone": "",
                    "role": "site_owner",
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                },
                "contact_as_producer": {
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                        "abbreviation": "VGHMUR",
                        "address": "Cs. Odboje 676\n51815 Dobruska\nCzechia",
                        "infos": "",
                        "name": "Military Geographic and Hydrometeorologic Office",
                        "www": ""
                    },
                    "comment": "",
                    "email": "mmpoc_cz@vghur.army.cz",
                    "name": "Mr. Chief of GPS  Department",
                    "phone": "+420 973 257 845",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2014-10-06 00:00:00",
                "date_to": null,
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "sensor_model"
                        },
                        "date_from": "2014-10-06 00:00:00",
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                        "value_numeric": null,
                        "value_varchar": "HMP45D"
                    },
                    {
                        "attribute": {
                            "name": "manufacturer"
                        },
                        "date_from": "2014-10-06 00:00:00",
                        "date_to": null,
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                        "value_numeric": null,
                        "value_varchar": "VAISALA, FINLAND"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
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                        "value_varchar": "A4220032"
                    },
                    {
                        "attribute": {
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                    },
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                        "attribute": {
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                    },
                    {
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                    },
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                    }
                ],
                "item_type": {
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                }
            }
        }
    ],
    "station_networks": [
        {
            "name": "VESOG"
        }
    ],
    "station_type": "GNSS Continuous"
}