I have a bit more information on the star TIC-221861843. I was able to find it in the GAIA catalog as GAIA Source ID 5927041953543630592 and it is located 500 light years away.
Honestly, it still amazes me that amateurs have the technology available to confirm a planet around a star 500 ly or more away.
As for the 12 minutes discrepancy between predicted ingress time and actual ingress time I measured and the 6 minutes discrepancy with Siding Springs in 2021, my best guess is that the this exo-planet is not in a near circular orbit, as the ephemeris assumes, but in a elliptical orbit with the long axis precessing over time, similar to Mercury.
Anyway, thanks for all the comments I received and I hope that this will inspired others to take up the challenge.
Chris
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