OGOO Rising with AGO, page-58

You and Google not talking then......

CX is a trade that has occurred in ASX CentrePoint at the current midpoint price. The midpoint price is determined by ASX to be the midpoint between the current ASX bid/offer spread. CXXT is a cross trade or crossing that has occurred in ASX CentrePoint at the current midpoint price.

Centre point =

ASX Centre Point offers a suite of Advanced Order Types designed to maximise price improvement, protect against information leakage and uncover natural block liquidity.
Centre Point: Non-displayed liquidity matched at the mid-point or other permitted price step inside the National Best Bid and Offer (NBBO).
Centre Point Block: Attach a user-defined Minimum Acceptable Quantity (MAQ) to your ASX Centre Point order and only execute when the MAQ is satisfied. Helps users source natural block liquidity, improve fill rates and protect orders from 'pinging'.

There is more but that's the basics.