Survey control
Survey control is one of Demiton's published registers for Australian civil construction. Survey control marks in GDA2020 / MGA2020. Demiton keeps it current from the systems a contractor already runs and publishes the record's shape as a versioned JSON Schema, so the same question works whichever system produced the record.
Part of Projects in the register catalog.
- Register ID
survey_controlUse this name to ask for the register. The API calls it a shelf ID.- Status
- PlannedDefined ahead of the connector that will fill it.
- Data
- OrganisationPrivate to each organisation's own workspace.
- Version
- v1 (1.0.3)Current version.
Standards
This register's contract was designed against these standards and laws. Holding these records does not by itself certify compliance.
- AHD / AUSGeoid2020Australian Height Datum with AUSGeoid2020 separation model
- GDA2020 / MGA2020Geocentric Datum of Australia 2020 and Map Grid of Australia 2020
- ICSM SP1Standard for the Australian Survey Control Network (Special Publication 1)
- National Measurement (Recognized-Value Standard of Measurement of Position) Determination 2017Legal definition of GDA2020 under National Measurement Act 1960 (Cth) s 8A
- INSPIRE Data Specification on Coordinate Reference Systems (D2.8.I.1)INSPIRE CRS Technical Guidelines: ETRS89 horizontal, EVRS vertical
- EPSG Geodetic Parameter DatasetIOGP CRS registry (EPSG:7844 GDA2020, EPSG:7855 MGA zone 55, EPSG:4326 WGS 84 ensemble)
- NZGD2000 / NZTM2000 / NZVD2016New Zealand Geodetic Datum 2000, NZ Transverse Mercator 2000, NZ Vertical Datum 2016 (NZGeoid2016)
- OSGB36 / ETRS89 / OSTN15 / OSGM15 (ODN)Ordnance Survey National Grid, ETRS89 and the definitive transformations
- NAD 83(2011) / NAVD 88 (NSRS)US official horizontal and vertical datums, being replaced by NATRF2022 et al.
Connectors
Connected today
Demiton keeps this register current from these systems now.
No system fills this register yet.
On the roadmap
Systems in the planned connector rollout that can fill this register. Partial means the system holds only some of its fields.
None planned yet.
Fields
23 fields: 2 required, 21 optional.
Required
Every record carries these fields.
Optional
Present when the source system records them.
- crsText
The coordinate reference system identifier, e.g. EPSG:7844 or EPSG:7855.
- eastingDecimal number
The mark's grid easting.
- latitudeDecimal number
The mark's GDA2020 latitude.
- map_zoneWhole number
The MGA zone the grid coordinates are in.
- northingDecimal number
The mark's grid northing.
- longitudeDecimal number
The mark's GDA2020 longitude.
- mark_typeText
The kind of mark.
- ahd_heightDecimal number
The height on the Australian Height Datum.
- mark_aliasText
Another name the mark is known by.
- external_idText
The source's own record id, where it differs from the mark id.
- mark_statusText
The mark's condition, e.g. intact, damaged or destroyed.
- legacy_classText
The class the mark was given before SP1 retired class and order.
- legacy_orderText
The order the mark was given under the same retired scheme.
- monument_typeText
The physical monument.
- last_visited_onDate
When the mark was last visited.
- uncertainty_kindText
Positional, relative or survey uncertainty.
- coordinate_lineageText
The adjustment or source the coordinates come from.
- ellipsoidal_heightDecimal number
The height above the GDA2020 ellipsoid.
- vertical_uncertainty_mDecimal number
The vertical uncertainty at 95% confidence.
- coordinates_published_onDate
When the coordinates were published.
- horizontal_uncertainty_mDecimal number
The horizontal uncertainty at 95% confidence.
Use this contract
The contract is a standard JSON Schema (draft 2020-12) document, so any JSON Schema validator can check a record against it. Keywords starting with x-demiton- add Demiton's own meaning, such as units and requiredness, and validators ignore them.
https://docs.demiton.io/registers/survey_control/v1.jsonShow the full JSON Schema
Loading the schema…
Talk to the team
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