LEMON, I'm pretty sure the rig arrived at Ironbark on the evening of 12th October.
That 'mobilisation' word is some sort of drillers jargon - don't think it means actually moving it.
I think it means preparing to spud, and that may be quite soon, a day or two perhaps.
There's quite good info on the Hot Copper Aussie chat site : https://hotcopper.com.au/asx/nzo/?keywords=NZO