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Table A.1

Log of the observations.

Object RA Dec KObject Calibrator KCalibrator Observation Seeing Coherence Telescopes
(h:m:s) (deg:m:s) (mag) (mag) date Time(a) (ms)
V590Mon 06:40:44.6 +09:48:02 9.33 ± 0.03 HD 259163 9.26 ± 0.02 27-10-2018 0.42″ 4, 6 U1-U2-U3-U4
PDS281 08:55:45.9 −44:25:14 7.32 ± 0.02 HD 78958 7.22 ± 0.03 20-11-2018 0.57″ 3, 4 U1-U2-U3-U4
HD 94509 10:53:27.2 −58:25:24 8.93 ± 0.02 HD 94533 8.94 ± 0.02 20-12-2018 0.36″ 9, 10 U1-U2-U3-U4
DGCir 15:03:23.8 −63:22:59 7.82 ± 0.02 HD 131662 7.77 ± 0.02 22-01-2019 0.46″ 17, 18 U1-U2-U3-U4
HD 141926 15:54:21.8 −55:19:44 6.51 ± 0.02 HD 145664 7.44 ± 0.04 21-03-2019 0.45″ 7, 8 A0-B2-C1-D0

Notes. (a)Each object was observed twice. The exposure time for all observations of all objects were 30 s.

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