AK on the button with A high flop

[Icarus152]

I dont know how to use a hand convertor for a live game HH so sorry if my format is wrong.Heregoes:

Single table 7 man super-satellite
4th hand in and first round of blinds (100/200)
Average stack 12,000
Hero on the button with AK off,5 limpers to Hero who makes 800.
2 callers,MP and CO.
Flop 10h Ah 5d
Check,check,Hero bets 800,MP calls,CO calls.
Turn Ks
MP checks,CO bets 800,Hero raises to 2000,MP calls,CO all-in

Hero?
What do you put CO on?