Table 1
Log of the observations.
| Date | UT | HA | Baselines | λ 0 | V 2 | σ stat | σ syst | r 0 | ||
| (h) | (h) | Telescopes | Bp (m) | PA (°) | (nm) | (cm) | ||||
|
|
||||||||||
| 28-08-2013 | 11.6 | –1.8 | S1S2 | 24 | –172 | 712.5 | 1.026 | 0.094 | 0.001 | 8 |
| 28-08-2013 | 12.2 | –1.1 | S1S2 | 23 | 180 | 712.5 | 0.988 | 0.092 | 0.001 | 9 |
| S1E2 | 221 | –149 | 712.5 | 0.610 | 0.092 | 0.016 | ||||
|
|
||||||||||
| 29-08-2013 | 10.7 | –2.6 | S1S2 | 25 | –164 | 712.5 | 0.998 | 0.125 | 0.001 | 8 |
| 29-08-2013 | 11.9 | –1.3 | S1S2 | 23 | –178 | 712.5 | 1.036 | 0.125 | 0.001 | 10 |
| S2E2 | 205 | –145 | 712.5 | 0.618 | 0.055 | 0.012 | ||||
| S1E2 | 225 | –148 | 712.5 | 0.628 | 0.074 | 0.015 | ||||
| 12.2 | –1.1 | S1S2 | 23 | 179 | 712.5 | 1.025 | 0.091 | 0.001 | 10 | |
| S2E2 | 200 | –146 | 712.5 | 0.543 | 0.050 | 0.011 | ||||
| 12.8 | –0.47 | S1S2 | 24 | 172 | 712.5 | 0.965 | 0.073 | 0.001 | 9 | |
| S2E2 | 187 | –150 | 712.5 | 0.635 | 0.049 | 0.013 | ||||
|
|
||||||||||
| 02-11-2013 | 8.2 | –0.8 | W1W2 | 100 | 89 | 730 | 0.859 | 0.030 | 0.004 | 7 |
| 9.1 | 0.1 | W1W2 | 106 | 92 | 730 | 0.837 | 0.037 | 0.004 | 7 | |
|
|
||||||||||
| 27-08-2014 | 11.8 | –1.5 | E2W2 | 156 | –112 | 552.5 | 0.505 | 0.018 | 0.008 | 9 |
| E1W2 | 222 | –113 | 552.5 | 0.510 | 0.034 | 0.015 | ||||
| E2W2 | 155 | –110 | 707.5 | 0.781 | 0.030 | 0.007 | ||||
| 27-08-2014 | 12.5 | –0.88 | E1W2 | 217 | –114 | 552.5 | 0.404 | 0.042 | 0.013 | 9 |
| E1E2 | 64 | –113 | 707.5 | 0.970 | 0.068 | 0.002 | ||||
| E2W2 | 155 | –110 | 707.5 | 0.711 | 0.038 | 0.007 | ||||
Notes. Columns 1−3 give the date, the UT time, and the hour angle (HA) of the observations. Columns 4−6 give the telescope pair, the projected baseline length Bp, and its orientation PA. Column 7 gives the central wavelength of the spectral range used to compute the squared visibility. Columns 8−10 give the calibrated squared visibility V2, the statistic error on V2, and the systematic error on V2 (see text for details). Column 11 provides the Fried parameter at 550 nm for each observation.
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