Open Access
Table A.1.
Log of the two new GRAVITY observations. Nexp is the number of exposures. NDIT and DIT are the number and duration of integrations per exposure. τ0 is the coherence time.
| Date | Target | UT Start Time | UT End Time | Nexp / NDIT / DIT | airmass | τ0 | seeing |
|---|---|---|---|---|---|---|---|
| 6 January 2021 | β Pictoris c | 02:32:52 | 04:01:17 | 18 / 32 / 10 s | 1.12-1.18 | 7-13 ms | 0.4-0.5" |
| 7 January 2021 | β Pictoris b | 05:17:34 | 06:00:41 | 7 / 32 / 10 s | 1.21-1.32 | 5-11 ms | 0.4-0.7" |
| 27 August 2021 | β Pictoris b | 09:00:31 | 09:46:39 | 5 / 16 / 30 s | 1.24-1.39 | 2-3 ms | 1.0-1.7" |
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