Witness Account

High above land, low in the sky a light went from steady to blinking between red, bright white, and green. It was steady as it hovered in the sky. After 10 minutes it darted right before descending, returning to original position, moving left and disappearing.
It reappeared at least 4 times in 3 hours, spending roughly 10 to minutes in the sky, moving in seemingly random directions before disappearing from sight each time. Bases on sky location it has to be roughly the size of a car.