We're still working on building out a friendly user interface for specifying locations for satellite transits. For the time being, the process is fairly manual - we ask you to either specify coordinates for NW & SE corners that define a box on earth, or give us the coordinates of a specific location you are interested in collecting data for, and we will choose a transit that results in a high enough elevation pass to get good data for. At this time we are having groups write out these experiment parameters in the "Procedure" section of their experiment write-up on the Ardusat Experiment Platform (https://experiments.ardusat.com/).
Unfortunately, this next set of satellites won't be in a true polar orbit; we just (mis-)used the term to differentiate the orbit from the equatorial ones that are available for the earlier experiments. They will be in orbit that is similar to that of the ISS, with an inclination of approximately 52 degrees. This means that the Tennessee transit will have no difficulties at all, but the South Pole transit won't be possible - the furthest south these satellites will transit is about the southern tip of S. America.
Sorry for the confusion!