 Energy Levels of Singly Ionized Sulfur by National Institute of Standards and Technology

The low-lying levels have the $3s^{2}3p^3$ configuration. The ground ${}^4{S}_{3/2}^{\circ }$ level is followed by ${}^2{D}_{3/2}^{\circ }$ and ${}^2{D}_{5/2}^{\circ }$ at $14852.94$ and $14884.73\mathrm{c}{\mathrm{m}}^{-1}$.