Table 3
Observing log.
| UT date | ∊ (″) | τ0 (ms) | AM start/end | Instrument | Bands | DIT (s) × Nfr | FoV rot. (º) |
|---|---|---|---|---|---|---|---|
| 2021/03/03 | 0.8–1.3 | 4–6 | 1.46–1.24 | GRAVITY | K | 100 × 24 | n/a |
| 2021/05/20 | 1.2–1.7 | 1.4–1.9 | 1.00–1.01 | SPHERE | YJ+H23 | 48 × 64 | 117.6 |
| 2021/08/27 | 0.5–1.1 | 4–9 | 1.05–1.01 | GRAVITY | K | 30 × 144 | n/a |
| 2021/08/28 | 0.5−0.8 | 5–8 | 1.01–1.04 | GRAVITY | K | 30 × 48 | n/a |
Notes. The columns provide the observing date, the seeing and coherence time measured by the differential image motion monitor (DIMM) at 0.5 µm, the airmass (AM) at the beginning and the end of the sequence, the instrument, the spectral bands, the DIT (detector integration time) multiplied by the number of frames in the sequence, and the field of view rotation (only applicable for SPHERE).
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