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Table 1.
Observing log of spectroscopic observations.
| Instrument | Grism | Date | MJD | Phase | Slit width | Exposure time | Wavelength range | R |
|---|---|---|---|---|---|---|---|---|
| (days) | (arcsec) | (s) | (Å) | |||||
| EFOSC2 | Gr#13 | 2020-11-17 | 59 170 | –14 | 1.0 | 1500 | 3685–9315 | 850 |
| X-shooter | UVB | 2020-11-18 | 59 171 | –13 | 1.0 | 1800 | 3000–5600 | 5400 |
| VIS | 0.9 | 1920 | 5600–10 240 | 8900 | ||||
| NIR | 0.9JH | 1920 | 10 240–24 800 | 5600 | ||||
| EFOSC2 | Gr#11 | 2020-11-21 | 59 174 | –10 | 1.0 | 1500 | 3380–7520 | 1150 |
| EFOSC2 | Gr#16 | 2020-11-21 | 59 174 | –10 | 1.0 | 2700 | 6000–10 000 | 1100 |
| EFOSC2 | Gr#11 | 2020-11-23 | 59 176 | –8 | 1.0 | 2700 | ||
| FLOYDS | red/blue | 2020-11-26 | 59 179 | –5 | 2.0 | 3600 | 3200–10 000 | 250 |
| X-shooter | UVB | 2020-11-28 | 59 181 | –3 | 1.0 | 1200 | ||
| VIS | 0.9 | 1320 | ||||||
| NIR | 0.9JH | 1320 | ||||||
| FLOYDS | red/blue | 2020-11-29 | 59 182 | –2 | 2.0 | 3600 | ||
| EFOSC2 | Gr#11 | 2020-12-09 | 59 192 | +8 | 1.0 | 2700 | ||
| X-shooter | UVB | 2020-12-11 | 59 194 | +10 | 1.0 | 1200 | ||
| VIS | 0.9 | 1320 | ||||||
| NIR | 0.9JH | 1320 | ||||||
| EFOSC2 | Gr#11 | 2020-12-16 | 59 199 | +15 | 1.0 | 2700 | ||
| ALFOSC | Grism 4 | 2020-12-17 | 59 200 | +16 | 1.0 | 900 | 3200–9600 | 360 |
| EFOSC2 | Gr#11 | 2021-05-10 | 59 344 | +160 | 1.5 | 2700 | 750 | |
| X-shooter | UVB | 2021-07-04 | 59 399 | +215 | 1.0 | 2600 | ||
| VIS | 0.9 | 2720 | ||||||
| NIR | 0.9JH | 2720 |
Notes. The phase is given with respect to the peak of the bolometric light curve, taken to be MJD 59 184. The FWHM spectral resolution, R, is given at 4700 Å for EFOSC2, FLOYDS, and ALFOSC.
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