Open Access
Table C.2.
Log of spectroscopic observations of SN 2017ckj.
| Date | MJD | Phasea | Telescope+Instrument | Grism/Grating+Slit | Spectral range | Resolution | Exp. time |
|---|---|---|---|---|---|---|---|
| (days) | (Å) | (Å) | (s) | ||||
| 20170328 | 57840.1 | +3.0 | Copernico+AFOSC | gr04+1.69" | 2890-7950 | 16 | 1800 |
| 20170329 | 57841.1 | +4.0 | Copernico+AFOSC | vph7+1.69" | 3230-8950 | 16 | 1800 |
| 20170330 | 57842.2 | +5.1 | Copernico+AFOSC | vph7+1.69" | 3470-7030 | 16 | 1800 |
| 20170331 | 57843.1 | +6.0 | Copernico+AFOSC | vph7+1.69" | 3290-7030 | 16 | 1800 |
| 20170405 | 57848.1 | +11.0 | NOT+ALFOSC | gm4+1.0" | 3460-9310 | 12 | 1800 |
| 20170422 | 57865.2 | +28.1 | NOT+ALFOSC | gm4+1.3" | 3660-9310 | 14 | 2400 |
| 20170506 | 57879.0 | +41.9 | NOT+ALFOSC | gm4+1.0" | 3660-9300 | 12 | 3600 |
| 20170531 | 57904.1 | +67.0 | NOT+ALFOSC | gm4+1.0" | 3760-9410 | 12 | 3600 |
| 20170627 | 57931.0 | +93.9 | NOT+ALFOSC | gm4+1.0" | 3660-9360 | 12 | 2700 |
| 20170715 | 57950.0 | +112.9 | GTC+OSIRIS | R1000B/R1000R+1.0" | 3750-10020 | 8 | 1800 |
| 20170810 | 57976.0 | +138.9 | GTC+OSIRIS | R300B/R300R+1.0" | 3880-10260 | 7 | 1800 |
aPhases are relative to the estimated explosion epoch (MJD = 57837.1 ± 0.1) in observer frame.
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