Table 1
Logbook of the PEPSI observations.
| Date | HJD | Phase | S/N | S/N | S/N |
|---|---|---|---|---|---|
| (UTC) | 2 450 000+ | CD III | CD V | Aver | |
| 2015/04/03 | 7115.8866 | 0.205 | 181 | 287 | 5658 |
| 2015/04/09 | 7121.7174 | 0.442 | 111 | 189 | 3573 |
| 2015/04/09 | 7121.9181 | 0.519 | 197 | 313 | 6420 |
| 2015/04/09 | 7122.0120 | 0.555 | 238 | 382 | 6559 |
| 2015/04/10 | 7122.7021 | 0.820 | 207 | 244 | 5421 |
| 2015/04/10 | 7122.8576 | 0.880 | 250 | 394 | 8781 |
| 2015/04/10 | 7122.9744 | 0.925 | 239 | 383 | 7341 |
| 2015/04/11 | 7123.6768 | 0.193 | 165 | 196 | 5000 |
| 2015/04/11 | 7123.8599 | 0.264 | 275 | 433 | 10627 |
| 2015/04/11 | 7123.9413 | 0.296 | 226 | 361 | 6444 |
Notes. The first column gives the date, the second column the heliocentric Julian date (HJD), the third column the rotational phase based on the ephemeris given in Eq. (1), and the last three columns give the average S/N per pixel for the two wavelength regions of CD III and V and the S/N of the weighted average line profile.
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