Energy Levels of Singly Ionized Sulfur by National Institute of Standards and Technology
= Energy Levels of Singly Ionized Sulfur by National Institute of Standards and Technology
https://physics.nist.gov/PhysRefData/Handbook/Tables/sulfurtable6_a.htm
The low-lying levels have the $3s^23p^3$ configuration. The ground $^4S^\circ_{3/2}$ level is followed by $^2D^\circ_{3/2}$ and $^2D^\circ_{5/2}$ at $14852.94$ and $14884.73\,\mathrm{cm^{-1}}$.