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I belive this is OPs flight if anyone wants to compare plane data with ADS-B one.

https://www.flightaware.com/live/flight/SWA2340/history/2023...

Conceivably, the ADS-B data source might be the same as the data source for this API, at least in that they might be calculated from the same instruments and flight systems.

Potentially, but altitude and speed data on ADS-B are constrained to just 11 bits (+ 1 bit dedicated to the resolution: 25 vs 100-feet increments).

So while I believe the data source is the same, one can see quantization artifacts when comparing both signals.

That is the flight. This is a cool idea - I wish I had thought of it!

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