Data for: JWST COMPASS: A NIRSpec G395H Transmission Spectrum of Radius Valley-Dweller TOI-260 b

Data and models accompanying the publication Meech et al. 2026: "JWST COMPASS: A NIRSpec G395H Transmission Spectrum of Radius Valley-Dweller TOI-260 b", accepted to The Astronomical Journal (arXiv:2602.22329). Here we include: Fitted white and spectroscopic light curves from the two independent reductions (Tiberius and Eureka!) and two visits; Transmission spectra from both reductions; PLATON atmospheric forward models presented in Figure 10 (clear, isothermal atmospheres).