Notes. Statistical uncertainties in the slopes and intercepts are indicated. ^(a)Intrinsic scatter σ_int is defined as ${\sigma }_{\text{int\hspace{0.17em}}}^2\equiv \mathrm{mean}\left({(y_i-f\left(x_i\right))}^2\right)-\mathrm{mean}\left({\sigma }_i^2\right)$, where x_i, y_i are the individual measurements, σ_i is the uncertainty on y_i, and f is the best-fit line. Negative σ_int indicates that the uncertainties are likely overestimated. ^(b)The uncertainty in the inverse-variance-weighted mean A_filter for each grating is the formal uncertainty. The true uncertainties on these factors are likely closer to the scatter in A_filter for filters within a given grating.