Open Access
Table 2.
Log of observations for HD 254577 and HD 254477.
| Date | Instrument | Binning | DIT | S/N |
|---|---|---|---|---|
| HD 254577 | ||||
| 26 Feb. 2015 | FLECHAS | 1 × 1 | 1200 | 25 |
| 16 Mar. 2015 | FLECHAS | 1 × 1 | 1200 | 30 |
| 18 Mar. 2015 | FLECHAS | 1 × 4 | 1800 | 65 |
| 27 Oct. 2015 | HDS | 1 × 1 | 600 | 65 |
| 29 Jan. 2024 | FLECHAS | 2 × 2 | 2400 | 35 |
| 28 Feb. 2024 | FLECHAS | 2 × 2 | 2400 | 40 |
| 09 Mar. 2024 | FLECHAS | 1 × 1 | 2400 | 10 |
| 25 Mar. 2024 | FLECHAS | 1 × 1 | 2400 | 25 |
| HD 254477 | ||||
| 22 Feb. 2015 | FLECHAS | 1 × 1 | 1200 | 25 |
| 09 Apr. 2015 | FLECHAS | 1 × 1 | 1200 | 20 |
Notes. The observation dates are given together with the spectrograph, preferred binning, DIT in seconds, and the signal-to-noise ratio obtained near the Hβλ4860 line. The number of DITs is three (NDIT = 3) for each observation.
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