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Table A.1.

Observational circumstances for each selected observation.

Date UT Exp Airmass α Da
(s) (°) (″)
2018-04-24 08:42:52 245 1.30 5.8 0.136
2018-04-24 08:51:24 245 1.34 5.8 0.136
2018-04-24 08:59:53 245 1.39 5.8 0.136
2018-04-28 07:42:39 245 1.16 4.5 0.137
2018-04-28 07:51:11 245 1.19 4.5 0.137
2018-04-28 07:59:39 245 1.21 4.5 0.137
2018-05-04 05:44:47 245 1.03 2.6 0.138
2018-05-04 05:53:17 245 1.03 2.6 0.138
2018-05-04 06:01:45 245 1.04 2.6 0.138
2018-05-05 01:34:27 245 1.59 2.3 0.139
2018-05-05 01:42:57 245 1.53 2.3 0.139
2018-05-05 01:51:26 245 1.48 2.3 0.139
2018-06-03 23:58:13 245 1.34 8.7 0.135
2018-06-04 00:06:43 245 1.30 8.7 0.135
2019-07-28 09:04:11 240 1.57 4.2 0.181
2019-07-28 09:12:34 240 1.64 4.2 0.181
2019-07-28 09:20:52 240 1.72 4.2 0.181
2019-07-30 06:18:55 240 1.04 3.5 0.181
2019-07-30 06:27:16 240 1.05 3.5 0.181
2019-07-30 06:35:35 240 1.06 3.5 0.181
2019-07-30 08:03:04 240 1.28 3.4 0.181
2019-07-30 08:11:26 240 1.32 3.4 0.181
2019-07-30 08:19:45 240 1.36 3.4 0.181
2019-08-03 04:39:39 240 1.02 1.8 0.182
2019-08-03 04:47:59 240 1.02 1.8 0.182
2019-08-03 04:56:19 240 1.01 1.8 0.182
2019-08-05 07:43:16 240 1.32 1.0 0.183
2019-08-05 07:51:38 240 1.35 1.0 0.183
2019-08-05 07:59:58 240 1.40 1.0 0.183
2019-08-06 02:34:21 240 1.20 0.7 0.183
2019-08-06 02:42:42 240 1.17 0.7 0.183
2019-08-06 02:51:01 240 1.15 0.7 0.183
2019-08-06 04:10:56 240 1.03 0.7 0.183
2019-08-06 04:19:18 240 1.02 0.7 0.183
2019-08-06 04:27:36 240 1.02 0.7 0.183

Notes. For each of the 35 images selected out of the 60 available, the table gives the epoch, exposure time, airmass, phase angle α, and angular diameter Da. All images were acquired with VLT/SPHERE using the N_R photometric filter.

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