  Given a premodular category $\mathcal{C}$, we show that its $R$-symbol can be
recovered from its $T$-matrice, fusion coefficients and some 2nd generalized
Frobenius-Schur indicators. In particular, if $\mathcal{C}$ is modular, its
$R$-symbols for a certain gauge choice are completely determined by its modular
data.
