Table 2
SPHERE/IRDIS observations of WISPIT 1.
| Observation date (yyyy-mm-dd) | Filter | Coronagraph | NEXP×NDIT×DIT (1×1×s) | ω(″) | X | τ0 (ms) |
|---|---|---|---|---|---|---|
| 2022-11-19 | H | N_ALC_YJH_S | 4×2×32 | 0.565 ± 0.009 | 1.116 ± 0.001 | 3.800 ± 0.346 |
| 2023-12-03 | H | N_ALC_YJH_S | 4×2×32 | 0.290 ± 0.000 | 1.110 ± 0.000 | 13.900 ± 0.000 |
| 2024-11-30 | Ks | N_ALC_Ks | 7×1×64 | 0.481 ± 0.010 | 1.151 ± 0.003 | 6.700 ± 0.545 |
Notes. Observation setup and conditions for all WISPIT 1 observations. All filters are SPHERE broadband filters. The total integration time is the product of the number of exposures (NEXP), the number of sub-integrations per exposure (NDIT) and the detector integration time (DIT). The seeing is denoted by ω, the airmass by X and the coherence time by τ0.
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