Geoscience Australia has announced the release of version 3.0 of AUSPOS, the agency’s free online GPS processing service.
With the release of this new version, computation of coordinates is now being accomplished with respect to the latest International Terrestrial Reference Frame, ITRF2020, superseding the use of ITRF2014.
According to Geoscience Australia (GA), AUSPOS 3.0 has the following features:
- Computation of consistent GDA2020 coordinates.
- Use of the most up-to-date and reliable International GNSS Service (IGS) products aligned to ITRF2020.
- Improved quality of solutions due to: the implementation of Bernese v5.2 programs, more available reference sites for network calculations, updated antenna calibration values for ground receiver antenna types, and a more precise/advanced ocean tide loading model.
On the AUSPOS section of its website, GA says that “the GDA2020 coordinates from AUSPOS v3.0 are mainly consistent with the coordinates from AUSPOS v2.4. We have confirmed that for most solutions users should expect only small differences in the GDA2020 coordinates (millimetre level for horizontal coordinates and less than 1 cm level for height), with almost all differences within the positional uncertainty levels (and therefore statistically insignificant).”
AUSPOS is designed to work anywhere on Earth thanks to the IGS Stations Network’s global coverage.
According to GA, the IGS realisation of ITRF2020 (IGS20) uses the latest improvements in modelling and processing strategies, providing an additional indirect benefit to users of the upgraded AUSPOS v3.0.
GA plans to release a detailed report in the coming months covering the upgrade and the results of extensive testing campaign.
You can read more about AUSPOS and how it is used, in this article from Position magazine.
