Ok, first of all I thought this was 100nl.

If everyone had near the same depth of stacks I think you can fold this as Asxs isn't folding and neither is a set therefore you're getting your money in way behind the range of your 2 opponents. However, you can be concerned with just being ahead of the 200bb players' hand or at least having good equity against him. However, we have no idea how strong either of them are until we see the rest of the flop action. CO could have an overpair and BB could have AsXs. This is your worst case scenario:

Text results appended to pokerstove.txt

903 games 0.016 secs 56,437 games/sec

Board: Jc 5s Ts
Dead:

equity win tie pots won pots tied
Hand 0: 04.873% 04.87% 00.00% 44 0.00 {QsJs }
Hand 1: 32.115% 32.12% 00.00% 290 0.00 {AsKs }
Hand 2: 63.012% 63.01% 00.00% 569 0.00 {TdTh }