Open Access
Table 1
Log of the VLTI/GRAVITY observations.
| Object | Observation | AT(a) | Baseline | PA | Spectral | Wavelength | UD |
|---|---|---|---|---|---|---|---|
| name | date | array | range | mode(b) | diameter(c) | ||
| (m) | (°) | (μm) | (mas) | ||||
| 51 Oph | 2017 May 29 | B2-K0-D0-J3 | 102/56/135/91/34/117 | 46/163/43/79/34/67 | HR-K | 1.99-2.47 | |
| HD 163955 | 2017 May 29 | B2-K0-D0-J3 | 102/56/135/91/34/117 | 46/163/43/79/34/67 | HR-K | 1.99-2.47 | 0.38 |
| 51 Oph | 2017 Aug. 15 | A0-G1-J2-K0 | 49/87/110/52/111/81 | 6/37/84/66/109/135 | HR-K | 1.99-2.47 | |
| HD 163955 | 2017 Aug. 15 | A0-G1-J2-K0 | 49/87/110/52/111/81 | 6/37/84/66/109/135 | HR-K | 1.99-2.47 | 0.38 |
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