Table A.1
Log of observations in 2015.
| UT date (mm/dd.d–dd.d) | 〈rh〉 (au) | 〈 Δ 〉 (au) | Phase(a) | Tel. | Integ. time (min)(c) | pwv(b) (mm) | Mode(d) | Freq. range (GHz) |
|---|---|---|---|---|---|---|---|---|
| 09/18.25–18.34 | 1.320 | 1.786 | 33.7° | IRAM | 87 | 3.8 | WSW | 248.0-255.7, 263.6-271.4 |
| 18.35–18.36 | 1.320 | 1.786 | 33.7° | IRAM | 23 | 3.8 | FSW | 248.0-255.7, 263.6-271.4 |
| 18.36–18.40 | 1.320 | 1.786 | 33.7° | IRAM | 37 | 3.8 | WSW | 248.0-255.7, 263.6-271.4 |
| 18.41–18.57 | 1.321 | 1.786 | 33.7° | IRAM | 159 | 6-13 | FSW | 223.8-231.6, 239.5-247.3 |
| 09/19.23–19.35 | 1.324 | 1.787 | 33.7° | IRAM | 121 | 5.9 | WSW | 248.0-255.7, 263.6-271.4 |
| 19.37–19.58 | 1.325 | 1.787 | 33.7° | IRAM | 205 | 6.5 | WSW | 223.8-231.6, 239.5-247.3 |
| 09/20.23–20.40 | 1.328 | 1.788 | 33.7° | IRAM | 154 | 3-5 | WSW | 248.0-255.7, 263.6-271.4 |
| 20.41–20.55 | 1.329 | 1.788 | 33.7° | IRAM | 135 | 7-10 | WSW | 223.8-231.6, 239.5-247.3 |
| 09/21.24–21.35 | 1.333 | 1.789 | 33.7° | IRAM | 47 | 14-10 | WSW | 83.2-90.9, 139.6-147.4 |
| 09/22.24–22.36 | 1.337 | 1.790 | 33.6° | IRAM | 117 | 3.8 | WSW | 163.0-170.8, 301.8-309.6 |
| 11/09.47–12.10 | 1.64 | 1.79 | 33.2° | Odin | 1960 | 0.0 | DSW | 556.4–557.4 |
Notes. (a)Phase angle. (b)Mean precipitable water vapour in the atmosphere above the telescope. (c)Total (offset positions included) integration time (ON+OFF) on the source. (d)Observing mode: WSW = Wobbler SWitching (reference at ±3′); FSW = Frequency SWitching (±7.4 − 7.8 MHz); DSW = Dicke SWitching (reference at ~ 40°).
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