factor cannot account for. Fitting in the image domain is computationally faster, and can achieve the same result in terms of geometric parameters for high S/N data; however, we caution against relying on the robustness of the uncertainties using imaging plane fitting.

[clrr]{} $F_{pt}$ \[mJy\] & flux density & 0.81 $\pm$0.03 & 0.10$\pm$0.02\
$\Delta$x \[\] & RA offset & –3.08 $\pm$0.04 & –2.80$\pm$0.03\
$\Delta$y \[\] & Dec offset & 0.83 $\pm$0.05 & –1.61$\pm$0.04

\[pts\_ring\]

[llccccccccccc]{} & && & & & & &\
& & Value & $\pm$1$\sigma$ & & Value & $\pm$1$\sigma$ & & Value & $\pm$1$\sigma$ & & Value & $\pm$1$\sigma$\
\
$R_{in}$ \[au\] & inner belt radius & 105 & +5 –5 & & 106 & +5 –4 & && & &&\
$R_{out}$ \[au\] & outer belt radius & 331 & +4 –6 & & 312 & +7 –8 & && & &&\
$p$ & surface density index & -0.5 & +0.3 –0.3 & & –0.5 & +0.2 –0.2 & && & &&\
$R_{p}$ \[au\] & peak radius && & && & & 199 & +6 –6 & & 200 & +4 –4\
$R_{w}$ \[au\] & width (FWHM) && & && & & 169 & +5 –6 & 