Andrew Dempster’s Post

To you, this might look like an ordinary image of a GNSS receiver navigating in space. At Australian Centre for Space Engineering Research (ACSER), UNSW Sydney , we have integrated many receivers into satellites. However, - 2 were launched into the sea by Virgin Orbit, - 3 were on satellites that were dead on arrival in space, - 4 were on satellites that were never stable enough to navigate - 2 were on satellites over which we had no control This is the first time we are able to interrogate our receiver and receive good data - a cause for great excitement! Blue dots our position, Yellow dots from broadcast TLEs - the small difference is within the expected error of the TLEs... Many thanks to the team at Waratah Seed Space Qualification Mission: Iver Cairns, Xueliang Bai, Patrick Oppel and our own great engineers Ignatius Rivaldi and Eamonn Glennon ( and the many who went before, including Joon Wayn Cheong, PhD and Ben Southwell)

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Congrats Andrew Dempster and team :) glad that we were involved 🥂

That’s the way LEO satellites can be positioned without the need of ground stations.

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Yes this has been an achievement years in the making. Owning the full stack from the satellite bus to the GPS hardware and firmware gives ACSER full flexibility to pursue some really interesting experiments. Special shoutout to Ignatius Rivaldi for doing amazing job!

Congrats professor Dempster👏

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Great work, Andrew. Congratulations to you and your team.

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Congratulations Andrew and the team! Great moment many years in the making!

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Excellent news Andrew. Well done to all.

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