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Table A.1.

Observation log.

Date MJD Run Instrument Configuration Calibrator (diam. [mas]) Seeing (″) Airmass τ0 [ms]
10/2/11 55602.20 A PIONIER A0-G1-I1-K0 HIP 55237 (0.207) 0.60–0.65 1.68 7
6/3/12 55992.14 B PIONIER A1-G1-I1-K0 HIP 56876 (0.253) 1.27 1.67 4
HD 54452 (0.351)
2/7/12 56110.02 C PIONIER A1-G1-I1-K0 HD 99015 (0.239) 0.81–0.88 1.86–1.87 4
5/2/15 57058.13 D PIONIER D0-G1-H0-I1 HD 94246 (0.140) 0.67–0.92 1.81–2.06 9–14
HD 96494 (0.179)
HD 94189 (0.124)
HD 89591 (0.160)
13/2/15 57066.23 E PIONIER A1-G1-K0-J3 HD 89591 (0.160) 1.04–1.08 1.64 7–8
9/3/17 57821.35 F AMBER U2-U3-U4 HD 99015 (0.239) 0.35–0.37 1.90 8–9
20/6/19 58654.01 G GRAVITY U1-U2-U3-U4 HD 99556 (0.221) 0.39–0.59 1.72–1.82 6–8
28/1/20 58876.39 H GRAVITY D0-G2-J3-K0 HD 99556 (0.221) 0.80 1.69–1.70 4
30/1/20 58878.34 I GRAVITY D0-G2-J3-K0 HD 99556 (0.221) 0.55–1.20 1.62–1.73 3–6
HD 98142 (0.038)

Notes. The date format is day-month-year. Runs A, B, and C are not present in the ESO archive. For the remaining runs, the corresponding IDs are: D = 094.C-0884, E = 094.C-0884, F = 082.C-0920, G = 098.C-0334, H = 098.C-0334, I = 0103.C-0347, J = 0104.C-0567, and K = 0104.C-0567. Runs A, B, and C are from Anthonioz et al. (2015). The error bars on the diameter of the calibrators span from ±0.001 to ±0.009.

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