Table 1
Observation log for our MWC 147 data taken with VLTI/AMBER and VLT/CRIRES.
| Instrument | UTC Date | Telescopes | UT | DIT | NDIT/Pointings | Proj. baselines | PA | Calibrator |
|---|---|---|---|---|---|---|---|---|
| (h:m) | (ms) | # | (m) | (°) | ||||
| AMBER HR-K | 2010-12-18 | U2/U3/U4 | 06:15 | 1000 | 2100 | 43.5 / 59.2 / 89.2 | –133.5 / –73.4 / –98.4 | 1 |
| AMBER MR-K | 2008-12-14 | U1/U3/U4 | 07:29 | 500 | 1560 | 54.6 / 82.1 / 128.5 | –144.2 / –103.3 / –119.4 | 2 |
| 2009-12-04 | U2/U3/U4 | 07:58 | 500 | 840 | 46.2 / 84.2 / 50.7 | –133.5 / –102.3 / –74.1 | 3 | |
| AMBER LR-K | 2008-12-15 | U1/U3/U4 | 07:38 | 26 | 6000 | 101.0 / 47.2 / 128.0 | –139.5 / –73.9 / –119.9 | 4 |
| CHARA/CLIMB | 2010-12-01 | S2/W2/E2 | – | 21 | 3 | 162.5/218.8/154.6 | 20.6/–114.5/–246.6 | 5,6 |
| 2010-12-22 | S2/W1/E2 | – | 16 | 4 | 223.5/304.3/247.0 | –14.8/–227.3/–76.4 | 5 | |
| 2012-11-28 | S2/W2/E2 | – | 20 | 3 | 218.3/304.9/120.2 | 2.8/–195.8/–51.1 | 7,8 | |
| CRIRES | 2010-10-26 | U1 | 06:40 | 60000 | 36 | N/A | N/A | 9 |
Notes. The numbers in the calibrator column correspond to the following stars with their K-band uniform disk diameters in parentheses: (1) HD 53510 (2.049 mas), (2) HD 43023 (0.940 mas), (3) HD 47127 (0.411 mas), (4) HD 50277 (0.356 mas), (5) HD 47157 (0.276 mas), (6) HD 52456 (0.271 mas), (7) HD 47575 (0.225 mas), (8) HD 45638 (0.262 mas), and (9) HD 48977 (0.119 mas). The NDIT/Pointings column gives the NDIT for all observations except for CHARA/CLIMB, where it gives the number of pointings taken on the night. The baseline and PA columns give the average value across all pointings.
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