Open Access
Table D.2
Main data reduction differences between SP-TW, RU-23, and CA-24.
| Step | SP-TW | RU-23 | CA-24 |
|---|---|---|---|
| jwst pipeline version | 1.8.2 | 1.6.0 | 1.6.2 |
| Stage 1 and 2 | |||
| Bias subtraction | jwst_nirspec_superbias_0299 | Custom | Custom |
| Dark current subtraction | Yes | Yes | No |
| Reference pixel correction | No | Top / bottom 6 px | Top / bottom 6 px |
| Jump rejection | 10 σ | No | No |
| GLBS | 2nd order polynomial | Median (top / bottom 6 px) | Yes, but unspecified |
| Stage 3 | |||
| Spectral half-width | 6 px | 4 px | Variable |
| Time series outliers | 100 px box-car (5 σ) | 20 px box-car (3 σ) | unspecified |
| Light-curve fitting | |||
| Systematic trend | Quadratic | Linear | Linear |
| Limb-darkening | 4-parameter (fixed) | Quadratic (fitted) | Quadratic (fitted) |
| Error bar inflation | No | Yes ( to 1) |
unspecified |
| Pre-fit binning | No (pixel-level) | No (pixel-level) | Instrument resolution |
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