Table 1.
Radial velocity rms using different instrumental drift corrections.
| Drift correction method | RV rms [ m s−1] |
|---|---|
| Period with unstable FP: BJD 2458500 to 2458700 | |
| Simultaneous FP drift correction | 1.13 |
| Wavelength solution plus high-frequency FP | 1.07 |
| Optimised drift correction | 1.03 |
| Low-activity period: BJD 2458640 to 2458750 | |
| Simultaneous FP drift correction | 0.87 |
| Wavelength solution plus high-frequency FP | 0.94 |
| Optimised drift correction | 0.84 |
| Medium activity period: BJD 2457589 to 2457660 | |
| Simultaneous FP drift correction | 1.25 |
| Wavelength solution plus high-frequency FP | 1.24 |
| Optimised drift correction | 1.17 |
Notes. RV rms for different periods of the solar data using different instrumental drift correction methods. We note that the simultaneous drift correction method includes the correction when the FP drift was unstable (see Fig. E.1). The optimised drift correction method corresponds to the best one among all the ones tested on the solar data (see text).
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