Open Access
Table A.1
Observation log of our GRAVITY R Car observations. HD80404 was selected as a calibrator star. The coherence time (τ0) was taken from the Paranal Astronomical Site Monitoring (ASM).
| No. | Date | Time (UT) | Target | DIT | NDIT | Seeing (”) | τ0 (ms) |
|---|---|---|---|---|---|---|---|
| 1 | 2018-01-27 | 05:30:21 | R Car | 3 | 100 | 0.76 | 5.4 |
| 2 | 05:42:30 | R Car | 3 | 100 | 0.63 | 5.5 | |
| 3 | 06:25:34 | R Car | 3 | 100 | 0.81 | 5.2 | |
| 4 | 06:37:45 | R Car | 3 | 100 | 0.89 | 6.0 | |
| 5 | 06:51:46 | HD80404 | 30 | 10 | 0.76 | 6.1 | |
| 6 | 07:03:09 | HD80404 | 30 | 10 | 0.99 | 5.8 | |
| 7 | 07:29:58 | R Car | 3 | 100 | 0.73 | 6.3 | |
| 8 | 07:42:04 | R Car | 3 | 100 | 0.67 | 5.0 | |
| 9 | 07:56:18 | HD80404 | 30 | 10 | 0.85 | 5.0 | |
| 10 | 08:07:34 | HD80404 | 30 | 10 | 0.90 | 4.3 | |
| 11 | 08:22:08 | R Car | 3 | 100 | 0.50 | 4.5 | |
| 12 | 08:34:15 | R Car | 3 | 100 | 0.58 | 4.4 | |
| 13 | 2018-02-22 | 05:48:54 | R Car | 3 | 100 | 0.47 | 12.3 |
| 14 | 06:01:00 | R Car | 3 | 100 | 0.63 | 9.8 | |
| 15 | 06:17:41 | HD80404 | 30 | 10 | 0.52 | 8.6 | |
| 16 | 06:29:02 | HD80404 | 30 | 10 | 0.65 | 11.8 | |
| 17 | 2018-02-25 | 05:35:44 | R Car | 3 | 100 | 0.33 | 11.6 |
| 18 | 05:47:51 | R Car | 3 | 100 | 0.49 | 10.8 | |
| 19 | 06:02:42 | HD80404 | 30 | 10 | 0.45 | 7.7 | |
| 20 | 06:14:04 | HD80404 | 30 | 10 | 0.55 | 6.2 | |
| 21 | 2018-03-12 | 00:51:56 | R Car | 3 | 100 | 0.79 | 4.3 |
| 22 | 01:04:06 | R Car | 3 | 100 | 0.74 | 5.4 | |
| 23 | 01:10:39 | R Car | 3 | 100 | 0.76 | 5.4 | |
| 24 | 01:25:50 | HD80404 | 30 | 10 | 0.74 | 6.0 | |
| 25 | 01:37:13 | HD80404 | 30 | 10 | 0.78 | 6.4 | |
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