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Table B.1
Short definitions for Gaia -related terms.
| Term | Description |
|---|---|
| AC | Gaia ACross scan (direction) |
| astrometric_gof_al | GoF for the astrometric solution |
| GoF | Goodness of fit, reduced χ2, e.g. for image fitting or for the astrometric solution |
| IPD | Image Parameters Determination, estimating location and flux for each CCD window |
| ipd_frac_multi_peak | Percentage of CCD transits where additional images were seen |
| ipf_frac_odd_win | Percentage of incompletely sampled CCD transits |
| ipd_harmonic_gof_amplitude | Scan angle dependent variation of GOF for the image fitting |
| ipd_harmonic_gof_phase | Phase of the IPD GoF versus position angle of scan |
| parallax_over_error | ϖ∕σϖ |
| PhotPipe | Photometric pipeline, software system for the photometric calibration |
| phot_bp_rp_excess_factor | Sum of GBP and GRP fluxes divided by the G flux |
| pseudocolour | Wave number determined as the 6th parameter for 6p astrometric solutions |
| ruwe | Renormalised unit weight error |
| SSC | Spectral shape coefficient: the flux in a certain section of the GBP or GRP spectrum |
| visibility period | Set of transits for a source with no time gap exceeding four days |
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