{
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          "country": "United Kingdom"
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        "email": "magic@bas.ac.uk",
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        "statement": "This information is licensed under the Creative Commons Attribution-NoDerivatives 4.0 International Licence (CC BY-ND 4.0). To view this licence, visit https://creativecommons.org/licenses/by-nd/4.0/",
        "href": "https://creativecommons.org/licenses/by-nd/4.0/"
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    "maintenance": {
      "maintenance_frequency": "continual",
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    "date_stamp": "2026-10-17",
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      "name": "ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data",
      "version": "ISO 19115-2:2009(E)"
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  "reference_system_info": {
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      "value": "urn:ogc:def:crs:EPSG::4326",
      "href": "http://www.opengis.net/def/crs/EPSG/0/4326"
    },
    "version": "6.18.3",
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          "title": "EPSG Geodetic Parameter Dataset",
          "description": "The EPSG Geodetic Parameter Dataset is a structured dataset of Coordinate Reference Systems and Coordinate Transformations, accessible through this online registry.",
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  "identification": {
    "title": {
      "value": "Latest assets position - BAS Assets Tracking Service"
    },
    "abstract": "A dataset containing the last known position of large assets operated by the British Antarctic Survey\n([BAS](https://www.bas.ac.uk)) including:\n\n- 🚢 ships (the [SDA](https://www.bas.ac.uk/polar-operations/sites-and-facilities/facility/rrs-sir-david-attenborough/))\n- ✈️ aircraft (the\n  [Dash](https://www.bas.ac.uk/polar-operations/sites-and-facilities/facility/dash-7-aircraft/) and\n  [Twin Otters](https://www.bas.ac.uk/polar-operations/sites-and-facilities/facility/twin-otter-aircraft/))\n- 🚜 vehicles (\n  [snowmobiles](https://www.bas.ac.uk/polar-operations/engineering-and-technology/vehicles/sno-cats/),\n  [Pisten Bully's](https://www.bas.ac.uk/polar-operations/sites-and-facilities/facility/rothera/tractor-train-traverse-system/),\n  loaders, etc.)\n\nThis dataset is designed to show where assets are in maps and other visualisations. Attributes (defined below) are\navailable in a multiple formats to suit different audiences (metres and feet for elevation for example).\n\nPositions (including speed and direction), are checked every 5 minutes, however assets may not be updated as frequently\ndepending on where they are, or if they are not in use.\n\nAnyone may use this information under the terms of item licence (shown below). It must not be used for safety critical\npurpose. Updates to this dataset may pause during system maintenance or for other operational reasons.\n\nPositions are collected, processed and published to this item by the\n[BAS Assets Tracking Service](https://github.com/antarctica/assets-tracking-service), operated by the\nMapping and Geographic Information Centre [(MAGIC)](https://data.bas.ac.uk/teams/magic/). Please\n[contact us](mailto:magic@bas.ac.uk) for information about this service, or asset position data.\n\n#### Attributes\n\n<details><summary>👉 Click to expand or hide</summary>\n<table>\n    <tbody>\n    <tr>\n        <th>Attribute</th>\n        <th>Data Type</th>\n        <th>Description</th>\n        <th>Example</th>\n    </tr>\n    </tbody>\n    <tbody>\n    <tr>\n        <td><code>asset_id</code></td>\n        <td>String</td>\n        <td>Unique asset identifier</td>\n        <td>'01JDRYA6QHCJYYNGZ9TQ813F0G'</td>\n    </tr>\n    <tr>\n        <td><code>position_id</code></td>\n        <td>String</td>\n        <td>Unique asset position identifier</td>\n        <td>'01JDRYAXQVXBEX3CVFG6EH331S'</td>\n    </tr>\n    <tr>\n        <td><code>name</code></td>\n        <td>String</td>\n        <td>Descriptive asset identifier</td>\n        <td>'VP-FBB'</td>\n    </tr>\n    <tr>\n        <td><code>type_code</code></td>\n        <td>String</td>\n        <td>Code for asset type (see Asset Types)</td>\n        <td>'62'</td>\n    </tr>\n    <tr>\n        <td><code>type_label</code></td>\n        <td>String</td>\n        <td>Label for asset type (see Asset Types)</td>\n        <td>'AEROPLANE'</td>\n    </tr>\n    <tr>\n        <td><code>time_utc</code></td>\n        <td>Datetime</td>\n        <td>When the asset position was recorded</td>\n        <td>'2020-06-30T15:20:03Z'</td>\n    </tr>\n    <tr>\n        <td><code>last_fetched_utc</code></td>\n        <td>Datetime</td>\n        <td>When we last tried to get a position for the asset</td>\n        <td>'2020-06-30T23:05:00Z'</td>\n    </tr>\n    <tr>\n        <td><code>lat_dd</code></td>\n        <td>Float</td>\n        <td>Asset position latitude in decimal degrees</td>\n        <td>-67.56915</td>\n    </tr>\n    <tr>\n        <td><code>lon_dd</code></td>\n        <td>Float</td>\n        <td>Asset position longitude in decimal degrees</td>\n        <td>-68.12881</td>\n    </tr>\n    <tr>\n        <td><code>lat_ddm</code></td>\n        <td>String</td>\n        <td>Asset position latitude in degrees decimal minutes</td>\n        <td>67° 34.1486' S</td>\n    </tr>\n    <tr>\n        <td><code>lon_ddm</code></td>\n        <td>String</td>\n        <td>Asset position longitude in degrees decimal minutes</td>\n        <td>68° 7.7282' W</td>\n    </tr>\n    <tr>\n        <td><code>elv_m</code></td>\n        <td>Integer</td>\n        <td>Asset elevation in metres</td>\n        <td>3</td>\n    </tr>\n    <tr>\n        <td><code>elv_ft</code></td>\n        <td>Integer</td>\n        <td>Asset elevation in feet</td>\n        <td>10</td>\n    </tr>\n    <tr>\n        <td><code>speed_ms</code></td>\n        <td>Float</td>\n        <td>Asset speed in metres per second</td>\n        <td>25.0</td>\n    </tr>\n    <tr>\n        <td><code>speed_kmh</code></td>\n        <td>Float</td>\n        <td>Asset speed in kilometres per hour</td>\n        <td>91.0</td>\n    </tr>\n    <tr>\n        <td><code>speed_kn</code></td>\n        <td>Float</td>\n        <td>Asset speed in knots</td>\n        <td>49.0</td>\n    </tr>\n    <tr>\n        <td><code>heading_d</code></td>\n        <td>Float</td>\n        <td>Asset heading in degrees</td>\n        <td>21.0</td>\n    </tr>\n    </tbody>\n</table>\n</details>\n\n**Note:** A `FAKE_OBJECTID` attribute is additionally included in Arc services for this dataset for technical reasons.\nThis attribute must not be used, see the `asset_id` and `position_id` attributes as appropriate instead.\n\n#### Geometry\n\nPoint geometry in WGS 84 (EPSG:4326).\n\n#### Asset Types\n\nAsset types use the [SeaVoX Platform Categories](https://vocab.nerc.ac.uk/collection/L06/current/) vocabulary.\n",
    "purpose": "Last known position of large assets operated by the British Antarctic Survey.",
    "dates": {
      "creation": "2025-03-15T15:50:17+00:00",
      "publication": "2025-03-15T15:50:17+00:00",
      "revision": "2026-10-17T15:21:18+00:00",
      "released": "2025-03-15T15:50:17+00:00"
    },
    "edition": "1",
    "other_citation_details": "British Antarctic Survey (2026). _Latest assets position - BAS Assets Tracking Service_ (Version 1) [Dataset]. British Antarctic Survey Mapping and Geographic Information Centre. [https://data.bas.ac.uk/items/260298c6-8b63-4def-b0c3-964986a8bd24](https://data.bas.ac.uk/items/260298c6-8b63-4def-b0c3-964986a8bd24).",
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          "postal_code": "SN2 1FL",
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        "statement": "This information is licensed under the Open Government Licence v3.0. To view this licence, visit https://www.nationalarchives.gov.uk/doc/open-government-licence/.",
        "href": "https://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/"
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      "statement": "This dataset is a published copy of the\n[`v_latest_asset_pos_geojson`](https://github.com/antarctica/assets-tracking-service/blob/main/docs/data-model.md#v_latest_assets_pos_geojson) database view,\nas generated by the [BAS Assets Tracking Service](https://github.com/antarctica/assets-tracking-service).\n\nAsset positions are aggregated from a combination of providers and normalised into the Tracking Service\n[data model](https://github.com/antarctica/assets-tracking-service/blob/main/docs/data-model.md). Information about\nthe provider of each asset and asset position was sourced from, and a copy of the original data, is recorded in this\ndata model but not included in this dataset.\n"
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