attenuation is negligible). We adopt this image-based approach instead of fitting to the millimeter visibilities due to the difficulty in selecting a function that adequately reproduces the complex structure of the observed surface brightness profile.

[l l c c c]{} $F_\text{belt}$ & Total belt flux density \[mJy\] & $5.13 (+0.34, -1.01)$ & $3.50\pm0.50$ & $3.44 (+0.31, - 0.56)$\
$R_\text{in}$ & Belt inner edge \[AU\] & $106. (+19., -28.)$ & $115. (+16., -17.)$ & $104. (+8., -12.)$\
$R_\text{out}$ & Belt outer edge \[AU\] & $370. (+42., -40.)$ & $497. (+22., -150.)$ & $361. (+16., -18.)$\
$x$ & Surface brightness power law index & $-0.56 (+0.31, -0.83)$ & $-0.64 (+0.40, -0.46)$ & $-0.38 (+0.47, -0.47)$\
$i$ & Disk inclination \[$\degr$\] & $35.6 (+5.6, -4.4)$ & $34.3 (+5.9, -6.9)$ & $32.8 (+5.6, -9.6)$\
$PA$ & Disk position angle \[$\degr$\] & $41.6 (+9.6, -7.8)$ & $43.7 (+12.2, -12.4)$ & $35.6 (+9.4, -10.1)$\
$F_\text{pt}$ & background source flux density \[mJy\] & $0.47 (+0.11, -0.17)$ & & $0.45 (+0.12, -0.15)$\
$\Delta\alpha_\text{pt}$ & background source RA offset \[$\arcsec$\] & $-12.9 (+0.2, -0.9)$ & & $-12.2 (+0.8, -0.8)$\
$\Delta\delta_\text{pt}$ & background source DEC offset \[$\arcsec$\] & $17.8 (+0.4, -0.6)$ & & $17.5 (+0.9, -0.5)$\

Discussion {#sec:discussion}
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By 