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SP3 computation validation#213

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plutonheaven wants to merge 30 commits intomainfrom
202604_sp3_comparison
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SP3 computation validation#213
plutonheaven wants to merge 30 commits intomainfrom
202604_sp3_comparison

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@plutonheaven plutonheaven commented Mar 31, 2026

This PR investigates the computation of SP3 precise satellite position and clocks by comparing it with rtklib.

This branch orginates from #193 (Antex parsing and processing).

@plutonheaven plutonheaven marked this pull request as draft March 31, 2026 23:02
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plutonheaven commented Apr 3, 2026

@jtec, status of this PR.

I have changed the interpolation of sp3 orbits to make it faster. It is validated.

I have added PCO correction and... it works for GPS (except 1 sat), Glonass, some BDS satellite and no Galileo.

I am currently in cross-validation hell 💀, hunting for the decimeter error, trying to figure out whether the errors come from prx or matrtklib, which I use as reference. Or maybe from the dataset I use.

Hopefully, I'll sort everything out 🤞

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