Table 1
SPHERE observation log.
| Date UT | Prog. ID | Instrument | Filter(s) | Pol. cycle | Field rot. (°) | DIT (s) | Texp (s) | Seeing (″) |
|---|---|---|---|---|---|---|---|---|
| 2019-12-17 | 0104.C-0157 | IRDIS-DPI | BB_H | 10 | 25.1 | 32 | 5120 | 0.46-0.79 |
| 2021-11-04 | 108.227A.001 | IRDIS-DPI | BB_J | 7 | 17.3 | 32 | 3584 | 0.32-0.63 |
| 2021-11-24 | 108.227A.002 | IRDIS-DPI | BB_H | 7 | 17.6 | 32 | 3584 | 0.42-0.68 |
| 2022-01-02 | 108.227A.003 | IRDIS-DPI | BB_Ks | 2 | 5.1 | 32 | 1024 | 0.55-0.768 |
| 2023-10-23 | 112.25CD.001 | IRDIS-DPI | BB_H | 10 | 25.0 | 32 | 5120 | 0.31-0.73 |
| 2021-10-29 | 108.227A.005 | ZIMPOL imaging | CntHα/NHα | – | 28.6 | 15 | 5760 | 0.35-0.68 |
Notes. From left to right: observation date, program ID, instrument mode, filter combination, number of polarimetric cycles, field rotation in degrees, individual integration time per frame (DIT) in seconds, total exposure time in seconds (Texp), and DIMM (Differential Image Motion Monitor) seeing variations in arcseconds.
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