Flowing xhp70 to mcpcb

how do I orient the led on the mcpcb? Normally with xnl's id solder it and if it dont work I'll flip it but this is a pricier led so i'd like to get it right the first time. Help please, thanks!

On the bottom side of the center led pad, there is a T marking. One line points to the Positive side, the other line parallels the Negative side.