Given an exact date, time, and coordinate, can I locate a plane that flew overhead?
I recommend using flightradar24. In addition to its many other features, it has a playback mode. I'm not sure if there is a simple way to view a specific coordinate; however it should be easy enough to navigate to your desired location using the map view. If looking at coordinates is a must, I have found that you can put them after the url like so:
https://www.flightradar24.com/-36.38,128.09
Edit
According to Jan Hudec, you need a flightradar24 subscription to access dates this old.