{
    "cdp_num": null,
    "comment": "The Steel Mast-Plate is installed\non the roof of the Vermessungsamt\nErlangen, screw anchored to the roof\nwall, 10.78 m above the ground.\nAntenna mounted with a special screw\nadapter on the mast.",
    "conditions": [],
    "country": "Germany",
    "country_code_ISO": "DEU",
    "date_from": "1997-08-04 00:00:00",
    "date_to": null,
    "description": "SURVEY MARKER BOLT ON STEEL MAST",
    "geological": {
        "bedrock": {
            "condition": null,
            "type": null
        },
        "characteristic": null,
        "distance_to_fault": null,
        "fault_zone": "NO",
        "fracture_spacing": null
    },
    "iers_domes": "14266M001",
    "instrument_collocation": [
        {
            "comment": "Secondary Receiver at the same antenna.\nMore information and data available on\nrequest.",
            "date_from": "2021-08-09 00:00:00",
            "date_to": null,
            "status": "PERMANENT",
            "type": "GNSS ERLA01DEU"
        }
    ],
    "local_ties": [],
    "location": {
        "city": "Erlangen",
        "coordinates": {
            "X": 4067022.6,
            "Y": 790886.3,
            "Z": 4833356.2,
            "altitude": 337.8,
            "lat": 49.58649466689577,
            "lon": 11.004577272925083
        },
        "country": "Germany",
        "country_iso_code": "DEU",
        "description": "",
        "state": "Bavaria",
        "tectonic": {
            "plate_name": "EURASIAN"
        }
    },
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        "date": "2026-03-11 00:00:00",
        "log_type": "UPDATE",
        "modified": "UNAVAILABLE",
        "previous": "UNAVAILABLE",
        "title": "ERLA00DEU.xml"
    },
    "marker": "ERLA",
    "monument": {
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        "foundation": "STEEL MAST SCREW ANCHORED TO ROOF WALL",
        "foundation_depth": null,
        "height": 0.92,
        "monument_inscription": "SAPOS 260"
    },
    "monument_num": 0,
    "name": "Erlangen \/ Germany",
    "receiver_num": 0,
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                    "email": "operator.gref@bkg.bund.de",
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            }
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                "date_to": null,
                "item_attributes": [
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                            "name": "sensor_model"
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                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "U4840047"
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                        "value_numeric": null,
                        "value_varchar": "NATURAL"
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                            "name": "height_diff_to_ant"
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                        "date_from": "2023-11-29 00:00:00",
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                ],
                "item_type": {
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                }
            }
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                "contact_as_owner": {
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                        "abbreviation": "BKG",
                        "address": "Richard-Strauss-Allee 11\nD-60598 Frankfurt a.M.\nGermany",
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                    "name": "GREF Operator",
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                    "role": "site_owner",
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                    },
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                    "email": "operator.gref@bkg.bund.de",
                    "name": "GREF Operator",
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                    "role": "metadata_custodian",
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                "date_from": "1997-08-04 00:00:00",
                "date_to": "2009-08-24 00:00:00",
                "item_attributes": [
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                        "value_varchar": "APS"
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                        },
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                        "value_numeric": null,
                        "value_varchar": "L-TEC LEIBENGUTH"
                    },
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                        "date_to": "2009-08-24 00:00:00",
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                        "value_numeric": null,
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                        "date_from": "1997-08-04 00:00:00",
                        "date_to": "2009-08-24 00:00:00",
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                    },
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                        "attribute": {
                            "name": "accuracy"
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                        "value_date": null,
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                    },
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                        },
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                        "date_to": "2009-08-24 00:00:00",
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                        "value_numeric": -2.48,
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                    },
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                        "date_to": "2009-08-24 00:00:00",
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                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
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                }
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                    "email": "operator.gref@bkg.bund.de",
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                    "email": "operator.gref@bkg.bund.de",
                    "name": "GREF Operator",
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                    "role": "metadata_custodian",
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                },
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                "date_to": "2022-06-14 00:00:00",
                "item_attributes": [
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                        "value_numeric": null,
                        "value_varchar": "W511012"
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                "item_type": {
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                }
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                    "email": "operator.gref@bkg.bund.de",
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                    "email": "operator.gref@bkg.bund.de",
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                    "role": "metadata_custodian",
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                },
                "date_from": "2023-11-29 00:00:00",
                "date_to": null,
                "item_attributes": [
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                        "date_from": "2023-11-29 00:00:00",
                        "date_to": null,
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                        "date_from": "2023-11-29 00:00:00",
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                    "role": "metadata_custodian",
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}