- Raw data available through direct contact with e-MERLIN support (emerlin.support@jb.man.ac.uk), project code CY6213.

- Data reduction using e-MERLIN CASA pipeline (v0.7.9): https://github.com/e-merlin/eMERLIN_CASA_pipeline

- Actual pipeline parameters can be found in file pipeline.tar. The scripts need to be run in the CASA software package

- imaging.py was used to image the individual runs and combined runs. These are the specific times used for the selection:

t01 = '2018/03/07/20:00:00~2018/03/08/08:00:00'
t02 = '2018/03/10/20:00:00~2018/03/11/08:00:00'
t03 = '2018/03/11/20:00:00~2018/03/12/08:00:00'
t04 = '2018/03/12/20:00:00~2018/03/13/08:00:00'
t05 = '2018/03/13/20:00:00~2018/03/14/08:00:00'
t06 = '2018/03/14/20:00:00~2018/03/15/08:00:00'
t07 = '2018/03/15/20:00:00~2018/03/16/08:00:00'
t08 = '2018/03/16/20:00:00~2018/03/17/08:00:00'
t09 = '2018/03/17/20:00:00~2018/03/18/08:00:00'
t10 = '2018/03/18/20:00:00~2018/03/19/08:00:00'
t11 = '2018/03/19/20:00:00~2018/03/20/08:00:00'
t12 = '2018/03/20/20:00:00~2018/03/21/08:00:00'
t13 = '2018/03/21/20:00:00~2018/03/22/08:00:00'

t_00  = '2018/03/07/20:00:00~2018/03/22/08:00:00'  # All observations
t_00b = '2018/03/10/20:00:00~2018/03/14/08:00:00'  # Closest observations to EVN run

- The imaged produced can be found in CY6213_images.tar 

- All images needed a correction factor to compensate for the low elevation of the target source, so the flux densities in the images need to be scaled by a factor of 2

- Summary of the results of the analysis

Columns are: target images peak flux density (microJy/beam), rms at 1-sigma level (microJy/beam) and the host galaxy images: amplitudes peak flux density (microJy/beam), rms at 1-sigma level (microJy/beam)

run,peak_flux,rms,peak_flux_host,rms_host
00   74.3  17.9 216.0  19.8 
00b 143.8  34.4 177.2  35.0 
01  248.8  63.0 248.8  61.4 
02  207.6  56.2 246.7  53.5 
03  396.1  90.1 339.3  96.1 
04  372.0  87.0 278.3  85.4 
05  216.7  54.5 222.5  54.6 
07  259.6  56.1 392.8  58.7 
08  242.3  63.4 261.9  68.3 
09  226.6  58.2 266.2  59.3 
10  255.1  67.1 263.5  68.7 
11  249.5  65.9 246.3  64.7 
12  228.6  55.2 210.9  53.5 
13  282.9  62.7 321.9  61.9 

- Final results:

HOST GALAXY:
Statistical:
270 +/- 50 microJy/beam

Complete dataset:
220 +/- 20 microJy/beam

TARGET:

Individual average noise 60 microJy/beam

Complete dataset:
noise 1sigma = 20 microJy/beam (<60microJy at 3 sigma)

Nearby observation (10-14 March)
noise 1sigma = 34 microJy/beam (<100 microJy at 3 sigma)