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                        "date_from": "2012-01-26 00:00:00",
                        "date_to": "2014-09-22 00:00:00",
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                        "value_numeric": null,
                        "value_varchar": "TRM55971.00"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2012-01-26 00:00:00",
                        "date_to": "2014-09-22 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "30607404"
                    },
                    {
                        "attribute": {
                            "name": "antenna_reference_point"
                        },
                        "date_from": "2012-01-26 00:00:00",
                        "date_to": "2014-09-22 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "BAM"
                    },
                    {
                        "attribute": {
                            "name": "marker_arp_up_ecc"
                        },
                        "date_from": "2012-01-26 00:00:00",
                        "date_to": "2014-09-22 00:00:00",
                        "value_date": null,
                        "value_numeric": 0.057,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "marker_arp_north_ecc"
                        },
                        "date_from": "2012-01-26 00:00:00",
                        "date_to": "2014-09-22 00:00:00",
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                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "marker_arp_east_ecc"
                        },
                        "date_from": "2012-01-26 00:00:00",
                        "date_to": "2014-09-22 00:00:00",
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                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "alignment_from_true_n"
                        },
                        "date_from": "2012-01-26 00:00:00",
                        "date_to": "2014-09-22 00:00:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "antenna_cable_type"
                        },
                        "date_from": "2012-01-26 00:00:00",
                        "date_to": "2014-09-22 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "LMR-400 TNC-N"
                    },
                    {
                        "attribute": {
                            "name": "antenna_cable_length"
                        },
                        "date_from": "2012-01-26 00:00:00",
                        "date_to": "2014-09-22 00:00:00",
                        "value_date": null,
                        "value_numeric": 12,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "antenna"
                }
            }
        },
        {
            "item": {
                "comment": "EMP Protector-Surge Arrestor installed in\r\nantenna cable, model: Huber Suhner 3402.17.K\r\nwith capsule 73 Z-0-0-48\r\nRG-213 cable installed from EMP Protector to\r\nthe antenna, protected with a PG-16 w\/steel\r\narmoured sheathing",
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "ICGC",
                        "address": "Parc de Montjuic\nE-08038 Barcelona\nSpain",
                        "infos": "",
                        "name": "Institut Cartografic i Geologic de Catalunya",
                        "www": ""
                    },
                    "comment": "",
                    "email": "geodesia@icgc.cat",
                    "name": "ICGC Geodesy Team",
                    "phone": "+34 935 67 15 00",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "ICGC",
                        "address": "Parc de Montjuic\nE-08038 Barcelona\nSpain",
                        "infos": "",
                        "name": "Institut Cartografic i Geologic de Catalunya",
                        "www": ""
                    },
                    "comment": "",
                    "email": "geodesia@icgc.cat",
                    "name": "ICGC Geodesy Team",
                    "phone": "+34 935 67 15 00",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2012-01-26 00:00:00",
                "date_to": "2014-09-22 00:00:00",
                "item_attributes": [
                    {
                        "attribute": {
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                        "date_to": "2014-09-22 00:00:00",
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                            "name": "serial_number"
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                        "date_from": "2012-01-26 00:00:00",
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                    }
                ],
                "item_type": {
                    "name": "radome"
                }
            }
        },
        {
            "item": {
                "comment": "The new antenna type code is due to the\r\nantenna is RoHS compliance.\r\nTo use old RINEX files, with the same\r\nantenna s\/n, the wrong antenna type code\r\nmust be modified with the correct one",
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "ICGC",
                        "address": "Parc de Montjuic\nE-08038 Barcelona\nSpain",
                        "infos": "",
                        "name": "Institut Cartografic i Geologic de Catalunya",
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                    },
                    "comment": "",
                    "email": "geodesia@icgc.cat",
                    "name": "ICGC Geodesy Team",
                    "phone": "+34 935 67 15 00",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
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                        "abbreviation": "ICGC",
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                        "infos": "",
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                        "www": ""
                    },
                    "comment": "",
                    "email": "geodesia@icgc.cat",
                    "name": "ICGC Geodesy Team",
                    "phone": "+34 935 67 15 00",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2014-09-22 00:00:00",
                "date_to": "2016-05-12 08:19:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "antenna_type"
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                        "date_from": "2014-09-22 00:00:00",
                        "date_to": "2016-05-12 08:19:00",
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                        "value_numeric": null,
                        "value_varchar": "TRM57971.00"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
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                        "date_from": "2014-09-22 00:00:00",
                        "date_to": "2016-05-12 08:19:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "30607404"
                    },
                    {
                        "attribute": {
                            "name": "antenna_reference_point"
                        },
                        "date_from": "2014-09-22 00:00:00",
                        "date_to": "2016-05-12 08:19:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "BAM"
                    },
                    {
                        "attribute": {
                            "name": "marker_arp_up_ecc"
                        },
                        "date_from": "2014-09-22 00:00:00",
                        "date_to": "2016-05-12 08:19:00",
                        "value_date": null,
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                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "marker_arp_north_ecc"
                        },
                        "date_from": "2014-09-22 00:00:00",
                        "date_to": "2016-05-12 08:19:00",
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                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "marker_arp_east_ecc"
                        },
                        "date_from": "2014-09-22 00:00:00",
                        "date_to": "2016-05-12 08:19:00",
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                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "alignment_from_true_n"
                        },
                        "date_from": "2014-09-22 00:00:00",
                        "date_to": "2016-05-12 08:19:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "antenna_cable_type"
                        },
                        "date_from": "2014-09-22 00:00:00",
                        "date_to": "2016-05-12 08:19:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "LMR-400 TNC-N"
                    },
                    {
                        "attribute": {
                            "name": "antenna_cable_length"
                        },
                        "date_from": "2014-09-22 00:00:00",
                        "date_to": "2016-05-12 08:19:00",
                        "value_date": null,
                        "value_numeric": 12,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "antenna"
                }
            }
        },
        {
            "item": {
                "comment": "The new antenna type code is due to the\r\nantenna is RoHS compliance.\r\nTo use old RINEX files, with the same\r\nantenna s\/n, the wrong antenna type code\r\nmust be modified with the correct one",
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "ICGC",
                        "address": "Parc de Montjuic\nE-08038 Barcelona\nSpain",
                        "infos": "",
                        "name": "Institut Cartografic i Geologic de Catalunya",
                        "www": ""
                    },
                    "comment": "",
                    "email": "geodesia@icgc.cat",
                    "name": "ICGC Geodesy Team",
                    "phone": "+34 935 67 15 00",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "ICGC",
                        "address": "Parc de Montjuic\nE-08038 Barcelona\nSpain",
                        "infos": "",
                        "name": "Institut Cartografic i Geologic de Catalunya",
                        "www": ""
                    },
                    "comment": "",
                    "email": "geodesia@icgc.cat",
                    "name": "ICGC Geodesy Team",
                    "phone": "+34 935 67 15 00",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2014-09-22 00:00:00",
                "date_to": "2016-05-12 08:19:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "radome_type"
                        },
                        "date_from": "2014-09-22 00:00:00",
                        "date_to": "2016-05-12 08:19:00",
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                        "value_numeric": null,
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                    },
                    {
                        "attribute": {
                            "name": "serial_number"
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                        "date_to": "2016-05-12 08:19:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "radome"
                }
            }
        },
        {
            "item": {
                "comment": "installed adaptor SECO (2072-33) antenna mount\r\nIndividual absolute calibration is available in\r\nftp:\/\/geofons.icc.cat\/calibracions_antenes\/",
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "ICGC",
                        "address": "Parc de Montjuic\nE-08038 Barcelona\nSpain",
                        "infos": "",
                        "name": "Institut Cartografic i Geologic de Catalunya",
                        "www": ""
                    },
                    "comment": "",
                    "email": "geodesia@icgc.cat",
                    "name": "ICGC Geodesy Team",
                    "phone": "+34 935 67 15 00",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
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                        "abbreviation": "ICGC",
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                        "infos": "",
                        "name": "Institut Cartografic i Geologic de Catalunya",
                        "www": ""
                    },
                    "comment": "",
                    "email": "geodesia@icgc.cat",
                    "name": "ICGC Geodesy Team",
                    "phone": "+34 935 67 15 00",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2016-05-12 09:12:00",
                "date_to": null,
                "item_attributes": [
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                        "attribute": {
                            "name": "antenna_type"
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                        "date_to": null,
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                        "value_varchar": "726356"
                    },
                    {
                        "attribute": {
                            "name": "antenna_reference_point"
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                        "date_from": "2016-05-12 09:12:00",
                        "date_to": null,
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                        "value_numeric": null,
                        "value_varchar": "BPA"
                    },
                    {
                        "attribute": {
                            "name": "marker_arp_up_ecc"
                        },
                        "date_from": "2016-05-12 09:12:00",
                        "date_to": null,
                        "value_date": null,
                        "value_numeric": 0.077,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "marker_arp_north_ecc"
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                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
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                        "date_from": "2016-05-12 09:12:00",
                        "date_to": null,
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                        "value_numeric": 0,
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                    },
                    {
                        "attribute": {
                            "name": "alignment_from_true_n"
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                        "date_from": "2016-05-12 09:12:00",
                        "date_to": null,
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "antenna_cable_type"
                        },
                        "date_from": "2016-05-12 09:12:00",
                        "date_to": null,
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                        "value_numeric": null,
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                    },
                    {
                        "attribute": {
                            "name": "antenna_cable_length"
                        },
                        "date_from": "2016-05-12 09:12:00",
                        "date_to": null,
                        "value_date": null,
                        "value_numeric": 12,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "antenna"
                }
            }
        },
        {
            "item": {
                "comment": "installed adaptor SECO (2072-33) antenna mount\r\nIndividual absolute calibration is available in\r\nftp:\/\/geofons.icc.cat\/calibracions_antenes\/",
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "ICGC",
                        "address": "Parc de Montjuic\nE-08038 Barcelona\nSpain",
                        "infos": "",
                        "name": "Institut Cartografic i Geologic de Catalunya",
                        "www": ""
                    },
                    "comment": "",
                    "email": "geodesia@icgc.cat",
                    "name": "ICGC Geodesy Team",
                    "phone": "+34 935 67 15 00",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
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                        "abbreviation": "ICGC",
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                        "infos": "",
                        "name": "Institut Cartografic i Geologic de Catalunya",
                        "www": ""
                    },
                    "comment": "",
                    "email": "geodesia@icgc.cat",
                    "name": "ICGC Geodesy Team",
                    "phone": "+34 935 67 15 00",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2016-05-12 09:12:00",
                "date_to": null,
                "item_attributes": [
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                        "attribute": {
                            "name": "radome_type"
                        },
                        "date_from": "2016-05-12 09:12:00",
                        "date_to": null,
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "NONE"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2016-05-12 09:12:00",
                        "date_to": null,
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                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "radome"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "ICGC",
                        "address": "Parc de Montjuic\nE-08038 Barcelona\nSpain",
                        "infos": "",
                        "name": "Institut Cartografic i Geologic de Catalunya",
                        "www": ""
                    },
                    "comment": "",
                    "email": "geodesia@icgc.cat",
                    "name": "ICGC Geodesy Team",
                    "phone": "+34 935 67 15 00",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "ICGC",
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                        "name": "Institut Cartografic i Geologic de Catalunya",
                        "www": ""
                    },
                    "comment": "",
                    "email": "geodesia@icgc.cat",
                    "name": "ICGC Geodesy Team",
                    "phone": "+34 935 67 15 00",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "1997-05-13 00:00:00",
                "date_to": null,
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "standard_type"
                        },
                        "date_from": "1997-05-13 00:00:00",
                        "date_to": null,
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "INTERNAL"
                    },
                    {
                        "attribute": {
                            "name": "input_frequency"
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                        "date_from": "1997-05-13 00:00:00",
                        "date_to": null,
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "frequency_standard"
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            }
        }
    ],
    "station_networks": [
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            "name": "CatNet"
        },
        {
            "name": "EPN"
        },
        {
            "name": "EPOS"
        }
    ],
    "station_type": "GNSS Continuous"
}