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Table A.1

VLA observing log.

Target Date Config. Project Gain Flux Freq. coverage
calibrator calibrator (J, K) or GHz)
IK Tau 2004 July 20 D AM797 J0409+1217 3C 48 (1, 1), (2, 2)
2015 Oct. 30, Nov. 05, Jan. 03 D 15B-167 J0409+1217 3C 48 21.12–23.14b
2016 Jan. 29, Feb. 06 C 16A-011 J0409+1217 3C 48 22.12–24.18c
2016 May 29, June 17, June 19, July 01a B 16A-011 J0409+1217 3C 48 22.12–24.18c

IRC +10420 2004 Aug. 09 D AM797 J1922+1530 3C 286 (1, 1), (2, 2)

OH 231.8+4.2 2004 July 26 D AM797 J0735-1735 3C 286 (1, 1), (2, 2)
J0730-1141
2013 Apr. 05 D 13A-325 J0748-1639 3C 147 23.29–25.26d

VY CMa 2013 Apr. 05 D 13A-325 J0731-2341 3C 147 23.29–25.26d
2016 Jan. 10 DnC 15B-167 J0731-2341 3C 147 21.12–23.14b

Notes. (a) This dataset is completely discarded because of poor phase stability and high rms noise. (b) Covered NH3 lines include (J, K) = (5, 3), (4, 2), (3, 1), (5, 4), (4, 3), (6, 5), (3, 2), (7, 6), and (2, 1). (c) Covered NH3 lines include (J, K) = (3, 1), (5, 4), (4, 3), (6, 5), (3, 2), (7, 6), (2, 1), (1, 1), (2, 2), (3, 3), and (4, 4). (d) Covered NH3 lines include (J, K) = (1, 1), (2, 2), (3, 3),(4, 4), (5, 5), and (6, 6).

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