What I miss in this article are some references to some of the great research on Starlink performance and characteristics that has come out in the past ~2 years. [1] and [2] come to mind. They also go into much more detail on the 15s interval, quote [1]:

> Interestingly, we observe that the Starlink OWD (one-way delay) often noticeably shifts at interval points that occur at 15 s increments. Further investigation reveals the cause to be the Starlink reconfiguration interval, which, as reported in FCC filings [71], is the time-step at which the satellite paths are reallocated to the users.

AFAIK it is not the dish itself that does the tracking but a central orchestration.

[1]: https://arxiv.org/abs/2310.09242 [2]: https://arxiv.org/abs/2306.07469