$\mathcal{P}$,$\mathcal{T}$-odd energy shifts of the ${}^{173}$YbOH

The energy shift in molecular spectra due to interaction of nuclear magnetic quadrupole moment ($M$) with electrons is equal to $\delta E_M=M{W}_M{P}_M$, where $W_M$ is a constant determined by the electronic structure of the molecule and $P_M$ is a dimensionless constant. We extended the method for calculation of parity nonconservation effects in triatomic molecules developed in Ref. [A. Petrov and A. Zakharova, Phys. Rev. A $\mathbf{105}$, L050801 (2022)] to the case of $P_M$ constant and applied it to ${}^{173}$YbOH in the first excited $v=1$ bending mode. Results of our calculations are required for the extraction of the $M$ value from the YbOH experiment.