2023 Mount Pleasant Geodetic Observatory (Hobart) Co-Location Local Tie Survey Technical Report

<div>The integrity and strengths of multi-technique terrestrial reference frames such as ITRF2020 depend on the precisely measured and expressed local tie connections between space geodetic observing systems at co-located observatories. A local tie survey was conducted at the Mount Pleasant Geodetic observatory, in Hobart in March 2023. The aim of the survey was to precisely measure the local terrestrial connections between the space-based geodetic observing systems co-located at the observatory, which includes a permanent International GNSS Service (IGS) site (HOB2&nbsp;A 50116M004), and Very Long Baseline Interferometry (VLBI) radio telescopes. In particular, this report documents the indirect measurement of the VLBI invariant reference point for both the 12m (7374&nbsp;A 50116S007) and 26m (7242 A 50116S002) radio telescopes at the site. Geoscience Australia has routinely performed classical terrestrial surveys at Mount Pleasant since 1995. A high precision survey was conducted between the survey pillars surrounding the observatory. These survey pillars were monitored to ensure their stability as part of a consistent, stable terrestrial network from which local tie connections were made to the VLBI and GNSS systems. The relationship between points of interest included the millimetre level accurate connections and their associated variance covariance matrix.</div><div><br></div>

Simple

Identification info

Date (Creation)
2023-08-05
Date (Publication)
2023-12-14T00:47:11
Citation identifier
Geoscience Australia Persistent Identifier/https://pid.geoscience.gov.au/dataset/ga/148836

Citation identifier
Digital Object Identifier/https://dx.doi.org/10.26186/148836

Cited responsible party
Role Organisation / Individual Name Details
Publisher

Commonwealth of Australia (Geoscience Australia)

 Voice
Author

Thomas, B.

 Internal Contact
Editor

Brown, N.

 Internal Contact
Editor

McCubbine, J.

 Internal Contact
Name

GA Record

Issue identification

GA Record 2023/52

Purpose

This report provides a continuation of the local tie connection data set obtained at the site, to provide an updated value of the local tie vectors for use by the international geodetic community and determination of the international terrestrial reference frame (ITRF), and to allow comparison to previous solutions so to monitor deformation in the local system.

Status
Completed
Point of contact
Role Organisation / Individual Name Details
Resource provider

Space Division

 External Contact
Point of contact

Commonwealth of Australia (Geoscience Australia)

 Voice
Point of contact

Thomas, B.

 Internal Contact
Spatial representation type
Topic category
  • Geoscientific information

Extent

N
S
E
W


Maintenance and update frequency
Not planned

Resource format

Title

Product data repository: Various Formats

Website

Data Store directory containing the digital product files

Data Store directory containing one or more files, possibly in a variety of formats, accessible to Geoscience Australia staff only for internal purposes

Project

  • Mount Pleasant

Project

  • Local Tie survey 2023

Project

  • 50116S007

Project

  • 50116S002

Project

  • 50116M004

Keywords

  • Local Tie

Keywords

  • co-located

Keywords

  • geodetic

Keywords

  • Survey

Keywords

  • Hobart

Keywords

  • Mount Pleasant

Keywords

  • HOB2

Keywords

  • AU16

theme.ANZRC Fields of Research.rdf

  • Earth system sciences

Keywords

  • Published_External

Resource constraints

Title

Creative Commons Attribution 4.0 International Licence

Alternate title

CC-BY

Edition

4.0

Website

https://creativecommons.org/licenses/by/4.0/

Addressee
Role Organisation / Individual Name Details
User

Any
Use constraints
License
Use constraints
Other restrictions
Other constraints

© Commonwealth of Australia (Geoscience Australia) 2023

Resource constraints

Title

Australian Government Security Classification System

Edition date
2018-11-01T00:00:00
Website

https://www.protectivesecurity.gov.au/Pages/default.aspx

Classification
Unclassified
Classification system

Australian Government Security Classification System

Associated resource

Association Type
Was informed by
Title

The 2002 Mount Pleasant (Hobart) radio telescope local tie survey

Citation identifier
61405

Citation identifier
a05f7892-c21f-7506-e044-00144fdd4fa6

Website

http://pid.geoscience.gov.au/dataset/ga/61405

Link to eCat metadata record landing page

Language
English
Character encoding
UTF8

Distribution Information

Distributor contact
Role Organisation / Individual Name Details
Distributor

Commonwealth of Australia (Geoscience Australia)

 Voice facsimile
OnLine resource

Download the Record (pdf) [3.2 MB]

Download the Record (pdf) [3.2 MB]

Distribution format

  • pdf

OnLine resource

Download associated data (snx) [17.8 KB]

Download associated data (snx) [17.8 KB]

Distribution format

  • snx

Resource lineage

Statement

<div>This document is a report about the terrestrial survey completed at the site in this year. It is a continuation of a set of results from similar works completed at the site in previous years. The current report references the results of the previous work, but for complete workings of previous surveys, refer to the relevant report of that dataset.</div>

Metadata constraints

Title

Australian Government Security Classification System

Edition date
2018-11-01T00:00:00
Website

https://www.protectivesecurity.gov.au/Pages/default.aspx

Classification
Unclassified

Metadata

Metadata identifier
urn:uuid/f3ffbe88-c2da-4955-b24c-0a36a7d861fd

Title

GeoNetwork UUID

Language
English
Character encoding
UTF8
Contact
Role Organisation / Individual Name Details
Point of contact

Commonwealth of Australia (Geoscience Australia)

 Voice
Point of contact

Thomas, B.

 Internal Contact

Type of resource

Resource scope
Document
Name

GA Record

Alternative metadata reference

Title

Geoscience Australia - short identifier for metadata record with

uuid

Citation identifier
eCatId/148836

Metadata linkage

https://ecat.ga.gov.au/geonetwork/srv/eng/catalog.search#/metadata/f3ffbe88-c2da-4955-b24c-0a36a7d861fd

Metadata linkage

https://ecat.ga.gov.au/geonetwork/ofmJ3/eng/catalog.search#/metadata/f3ffbe88-c2da-4955-b24c-0a36a7d861fd

Date info (Creation)
2023-12-13T21:25:30
Date info (Revision)
2023-12-13T21:25:30

Metadata standard

Title

AU/NZS ISO 19115-1:2014

Metadata standard

Title

ISO 19115-1:2014

Metadata standard

Title

ISO 19115-3

Title

Geoscience Australia Community Metadata Profile of ISO 19115-1:2014

Edition

Version 2.0, September 2018

Citation identifier
http://pid.geoscience.gov.au/dataset/ga/122551

 
 

Spatial extent

N
S
E
W


Keywords

50116M004 50116S002 50116S007 Local Tie survey 2023 Mount Pleasant
theme.ANZRC Fields of Research.rdf
Earth system sciences

Provided by

Access to the portal

Associated resources

Not available