Table 1.
Journal of the observations under the ESPRESSO Consortium’s GTO program (ESO Project ID 1102.A-0852).
| Exposure start | Exposure | Airmass | IQ | S/N |
|---|---|---|---|---|
| (UTC) | (s) | (″) | ||
| 2018-11-04 07:00 | 3600 | 1.07 | 0.68 | 31 |
| 2018-11-05 03:36 | 3600 | 1.33 | 1.03 | 20 |
| 2018-11-05 04:37 | 3600 | 1.17 | 0.89 | 24 |
| 2018-11-05 05:38 | 3600 | 1.09 | 0.84 | 27 |
| 2018-11-05 06:39 | 3600 | 1.07 | 0.87 | 28 |
| 2018-11-05 07:40 | 3600 | 1.10 | 0.82 | 28 |
| 2018-11-07 05:21 | 3600 | 1.10 | 0.84 | 26 |
| 2018-11-07 06:22 | 3600 | 1.07 | 1.00 | 26 |
| 2018-11-07 07:27 | 3600 | 1.10 | 0.86 | 21 |
| 2019-11-26 06:53 | 3500 | 1.15 | 0.92 | 30 |
| 2020-02-28 01:14 | 1016 | 1.16 | 1.11 | 8 |
| 2020-02-28 01:33 | 3500 | 1.26 | 0.86 | 25 |
| 2020-02-28 02:34 | 3500 | 1.49 | 1.12 | 19 |
| 2020-03-03 00:34 | 3600 | 1.16 | 1.16 | 22 |
| 2020-03-19 02:34 | 3400 | 2.13 | 1.05 | 25 |
| 2020-03-20 01:41 | 3500 | 1.68 | 1.14 | 26 |
| 2020-03-21 01:39 | 3500 | 1.69 | 1.08 | 26 |
Notes. The airmass is the average value during the exposure, and IQ is the full-width-half-maximum image quality measured by the image analysis detector at the telescope’s focus; this has been found empirically to correspond well with occasional image quality measurements taken with a detector at the end of the Coudé train. The signal-to-noise ratio (S/N) per 0.4 km s−1 is measured near 6000 Å as an average over 4 Å in the extracted spectrum (after combining both traces of the same echelle order).
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