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Table 2.
Dominant channel selection variables and potential settings.
| Channel property | Options |
|---|---|
| RealBogus | Nominal: Require ML score above 0.3 or Strong: above 0.5 |
| Detections | More than [2, 4, 6, 8] (any filter) |
| Alert history | New: Not older than 5 days, Multi-night: 4–15 days, Persistent: Older than 8 days |
| Image quality | All: No requirements, Good: Limited cuts on e.g., FWHM and bad pixels, Excellent: Strong cuts on e.g., FWHM and bad pixels |
| Gaia DR2 | Nominal: Reject likely stars from Gaia DR2, Moderate: only search in small aperture or Disabled |
| Star-Galaxy separation | Using PS1 star-galaxy separation (Tachibana & Miller 2018) to reject potential stars (Hard), likely stars (Nominal) or no rejection (Disabled) |
| Match confusion | Nominal: Allow candidates close to nearby (confused) sources, or Disabled: reject anything close to stars even if other sources exist |
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