Table 2
Summary of the observations.
| Observing night | UT interval (hh:mm) | texp (s) | ![Mathematical equation: $\[N_{\text {out}}^{a}\]$](/articles/aa/full_html/2026/06/aa54029-25/aa54029-25-eq1.png) |
![Mathematical equation: $\[N_{\text {in}}^{b}\]$](/articles/aa/full_html/2026/06/aa54029-25/aa54029-25-eq2.png) |
S/Nb | Φ |
|---|---|---|---|---|---|---|
| 2019 Feb 27 (T1) | 03:32–08:27 | 300 | 39 | 10 | ~44 | −0.034–0.043 |
| 2019 Apr 29 (T2) | 23:08–04:01 | 300 | 39 | 10 | ~52 | −0.033–0.044 |
Notes. a Number of out-of-transit spectra. The number of before- and after-transit spectra are 17 (T1), 16 (T2) and 22 (T1), 23 (T2), respectively. b Number of in-transit spectra from first to fourth transit contacts. The number of spectra between second and third transit contacts is 6. c Averaged S/N measured at ~5500 Å.
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