Hey Patrick, i just had a look at my PP log for today as ive had it on since i got up (1130am
) and i've got two of them on there,VH-PPF by user B1 in Perth so thats not it and VH-PPJ - in the Sydney/Woolongong area. So its more than likely that might have been VH-PPJ. And it was also around the right time that you posted too.
Hope that helps.