BB is a total unknown. Thoughts?

Poker Stars, $0.05/$0.10 No Limit Hold'em Cash, 6 Players
Poker Tools Powered By Holdem Manager - The Ultimate Poker Software Suite.

Hero (BTN): $10 (100 bb)
SB: $10.81 (108.1 bb)
BB: $8.06 (80.6 bb)
UTG: $11.07 (110.7 bb)
MP: $9.85 (98.5 bb)
CO: $3.42 (34.2 bb)

Preflop: Hero is BTN with T A
3 folds, Hero raises to $0.25, SB folds, BB calls $0.15

Flop: ($0.55) 5 3 2 (2 players)
BB bets $0.50, Hero raises to $1.50, BB calls $1

Turn: ($3.55) T (2 players)
BB bets $6.31