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Table A.1.
Summary of the observations.
| Tuning | Frequency | Date | Nant | Bmin | Bmax | PWV | ton | Beam/PA | LRAS |
|---|---|---|---|---|---|---|---|---|---|
| (GHz) | (m) | (km) | (mm) | (min) | (mas × mas/deg) | (″) | |||
| B4 | 154.89 | 2019 Jul 10 | 45 | 138 | 13.9 | 2.1 | 7:36 | 46.9 × 37.7/61.5 | 1.4 |
| B5 | 181.40 | 2019 Jul 28 | 43 | 92 | 8.5 | 0.6 | 17:14 | 56.4 × 51.6/87.0 | 1.8 |
| B6 | 230.89 | 2019 Jul 11 | 44 | 111 | 12.6 | 1.2 | 24:52 | 37.5 × 23.2/70.0 | 1.2 |
| B7 | 283.38 | 2019 Jul 28 | 42 | 92 | 8.5 | 0.6 | 18:49 | 34.3 × 32.9/42.3 | 1.2 |
Notes. Nant: number of antennas in the array; Bmin and Bmax: minimum and maximum baseline, respectively; PWV: precipitable water vapor; ton: on-source observing time; Beam/PA: synthesized beam size and position angle; LRAS: largest recoverable angular scale, calculated as c/(2νBmin).
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