$6 utg shorty standard raises, push with ATs?

[Sober]

PokerStars No-Limit Hold'em Tourney, Big Blind is t150 (9 handed) Hand History Converter Tool from FlopTurnRiver.com (Format: 2+2 Forums)

UTG (t1175)
UTG+1 (t1205)
MP1 (t1410)
MP2 (t1260)
MP3 (t2352)
CO (t1040)
Button (t2710)
Hero (t1405)
BB (t943)

Preflop: Hero is SB with T[img]/images/graemlins/spade.gif[/img], A[img]/images/graemlins/spade.gif[/img].
<font color="#CC3333">UTG raises to t300</font>, <font color="#666666">6 folds</font>, Hero?

Been messing around with the ranges here, getting some somewhat odd results. Thoughts?