AK, limp all-in first hand from EP

[PhatPots]

This is a WSOP satellite, on party. First hand, just sat down. Blinds are 15/30, players start with 3000 chips.

Preflop: Hero has A [img]/images/graemlins/diamond.gif[/img] K [img]/images/graemlins/heart.gif[/img]
UTG+1 limps, <font color="red">Hero raises to 150 </font>, all fold, BB calls, <font color="red">UTG+1 raises all-in </font>, Hero?

My thinking is this, I might be against a smaller pair, I might be against AQ or a weaker ace. I guess even a hand that is junk is possible.

This is a satellite where only the top few places get anything. I am gonna have to win every race and push my edges hard. Who folds, who calls, and why?

In a regular tournament I would probably fold this to an unknown and wait to see if he does this move again.