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Table A.1

Log of the MATISSE observations of R Scl.

Observing date VLTI config. BLR N/N* Seeing τ0
2018-12-03 → 05 A0–B2–C1–J2 10–129 9/14 0.94 0.6
2018-12-07 → 08 A0–B2–C1–D0 9–34 6/7 0.94 2.3
2018-12-09 B2–D0–J3–K0 29–137 5/5 0.73 4.1
2018-12-10 → 11 D0–G2–J3–K0 34–104 10/10 0.82 4.0
2018-12-12 A0–D0–G1–J3 25–131 4/4 0.80 4.6
2018-12-13 → 14 A0–G1–J2–J3 39–132 9/9 0.67 5.0
2018-12-15 A0–G1–J2–K0 48–123 2/2 0.53 4.7

Notes: BLR stands for Baseline Length Range expressed in m covered with each VLTI configuration. The ratio N/N* is the ratio of the used files to the pointings to the star, the seeing in arcseconds, and τ0 is the coherence time in ms.

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