Open Access
Table 1
Log of NIRPS, HARPS and CRIRES+ transit observations.
| Date | Night 5 2021-12-12 | Night 6 2022-04-02 | ||
|---|---|---|---|---|
| CRIRES+ | K-band | H-band | ||
| Resolving power | 86 000—92 000 | 86 000—92 000 | ||
| Number of spectra | 23 | 54 | ||
| Avg. seeing [″] | 1.36 | 0.52 | ||
| Avg. S/N | — | — | ||
| Night 1 | Night 2 | Night 3 | Night 4 | |
| Date | 2023-01-24 | 2023-03-02 | 2023-12-15 | 2025-01-21 |
| NIRPS | Comm. 8 | Comm. 9 | GTO | GTO |
| Resolving power | 80 000 | 80000 | 80000 | 80 000 |
| Observing mode | HE | HA | HE | HE |
| Number of spectra | 39 | 40 | 58 | 44 |
| Exp. time [s] | 400 | 400 | 300 | 600 |
| Number of exp. | 39 | 40 | 58 | 44 |
| Avg. seeing [″] | 1.1 | 0.9 | 0.8 | 0.5 |
| Avg. S/N order 57⋆ | 41 | 45 | 36 | 54 |
| S/N Y band | 32 | 38 | 28 | 40 |
| HARPS | Comm. 8 | Comm. 9 | GTO | GTO |
| Resolving power | 120000 | 120 000 | 120000 | 120000 |
| Observing mode | — | HAM | HAM | HAM |
| Number of spectra | — | 26 | 54 | 82 |
| Exp. time [s] | — | 600 | 300 | 300 |
| Number of exp. | — | 26 | 54 | 82 |
| S/N at 550 nm | — | 30 | N.A. | 18 |
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