I saw that years ago while walking back from the aircraft across the apron. For whatever reason my eyes went skyward and noticed a glowing orange object in the north sky silently moving east to west above me at a decent rate of knots. My thought process went from thinking weather ballon to a military jet doing military things between Perth and Pearce, then a shooting star because of it's speed and lack of noise. Suddenly it became stationary, slowly "danced" around in a square pattern stopping at each corner of the "square" and then blasted west at incredible speed like something out of a scifi film.
No one else from the crew saw it, none of the ramp guys saw it and they all had me committed. At least now, thanks to the rise of youtube, I can prove I'm not insane.
