Open Access
Table 2.
Observational information.
| Date | Exposure time | Flat type( * ) |
|---|---|---|
| 24 Jan. 2022 | 3 × 0.5 h | MIS & Sky |
| 25 Jan. 2022 | 3 × 0.5 h | Sky |
| 27 Jan. 2022 | 2 × 0.5 h | MIS & Sky |
| 30 Jan. 2022 | 3 × 0.5 h | MIS & Sky |
| 02 Feb. 2022 | 3 × 0.5 h | MIS & Sky |
Notes. ( * )MIS: instrument flat; Sky: twilight flat.
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