Specifically, it is the AU/NZ SouthPAN SBAS that's delivered via Inmarsat. They use PRN 122 for the corrections. https://www.ga.gov.au/scientific-topics/positi

Specifically, it is the AU/NZ SouthPAN SBAS that's delivered via Inmarsat. They use PRN 122 for the corrections. https://www.ga.gov.au/scientific-topics/positioning-navigation/positioning-australia/about-the-program/southpan https://www.ga.gov.au/scientific-topics/positioning-navigati... For details: https://www.ga.gov.au/__data/assets/pdf_file/0011/123320/SBAS-STN-0001_02_SDD-OS.pdf https://www.ga.gov.au/__data/assets/pdf_file/0011/123320/SBA...