I am guessing that these are the charters for the NBA teams Boston Celtics and Detroit Pistons, seeing as they are the only flights heading back to the Detroit area. They just finished up their Eastern Conference finals game 5 in Boston at around 11:30pm EST. They are heading back to Detroit for game 6 on Friday. I am not sure whose jet is whose though. Anyone know which one is which? Thanks, Mike
flightaware.com/live/flight/N32GM
flightaware.com/live/flight/N5107