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Table 1

Modeling steps in the single-band modeling code.

Step Description Sections Criteria Lens mass parameters Lens light Source light
Profiles Ext. shear Quasar Host
① Modeling of the lens light 2.1.2 × × ✓ × ×
② Modeling of the quasar light 2.1.3 ↺2 (ΔlogP ≤ 5) × × ○ ✓ ×
③ Source position modeling 2.1.4 ↺1 (χ2 < 5) ✓ × ○ ○ ×
④ Image position modeling with external shear 2.1.4 ↺2 (χ2 < 5, Δ logP ≤ 5) ✓ ✓ ○ ○ ×
⑤a Modeling of the arc light + SSB distribution reconstruction 2.1.5 ↺2 (ΔlogP ≤ 2) ✓ ✓ ○ ✓ ✓
⑤b Modeling of the arc light + SSB distribution reconstruction 2.1.5 ↺2 (ΔlogP ≤ 2) ✓ ✓ ✓ ○ ✓

Symbols:

↺1 : optimizing cycle with simulated annealing

↺2: optimizing and sampling cycle with simulated annealing and MCMC ✓A: only the amplitude varies

✓ : parameters vary

○: parameters fixed

×: parameters not included

Notes. Each step is described briefly in the second column with the corresponding subsection in the third column. The modeling technique and stopping criteria are given in the fourth column. The cycle runs until the stopping criteria in the parentheses are met. The remaining columns show the parameters that vary, are fixed, or are not included.

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