Geoscience Australia


Positioning Australia Branch

Accreditation No.


Site No.


Date of Accreditation

20 Jun 2003


Positioning Australia Branch, Cnr Jerrabomberra Avenue and Hindmarsh Drive
Symonston, ACT 2609


Dr Mohammad Mazher-Ul Alam Choudhury P: +61 (02) 62499089


Services conditionally available to external clients

Scope of Accreditation

Positioning Australia Branch

ISO/IEC 17025 (2017)


  • The uncertainty of measurement is reported as an expanded uncertainty having a level of confidence of 95% unless stated otherwise
Service Product Determinant Technique Procedure Limitations
Dimensional metrology - Survey and alignment equipment Position Position Dual frequency carrier phase and code data transmitted by the Global Positioning System (GPS) and observed by a global network of tracking sites including the International GNSS Service (IGS) network

Verification of the position of Continuously Operating Reference Stations (CORS) monuments located within Australia and its territories relative to the Geocentric Datum of Australia (GDA)


With calibration and measurement capability of - 

0.007 m horizontal;

0.015 m vertical

The only data displayed is that deemed relevant and necessary for the clear description of the activities and services covered by the scope of accreditation.

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