CABB Reduction Example

Data was taken by J Stevens (JBS) and M Voronkov (MV) on the night of 2009-04-01. This experiment is described ​http://svn.atnf.csiro.au/trac/operations/wiki/NFO/Development/CABB/Logs/001,here.

This data is a set of 3-point mosaics on calibrators around 0823-500 and 1934-638. This reduction is to test:

• bandpass stability on calibrators
• mosaic reduction with CABB data
• can we detect polarisation on 1514-241?
• check for decorrelation at offset pointings

Loading the data

For this example I will load only the data from 2009-04-01_1407 onwards as the RA half-power point problem was resolved and the observations include a possibly polarised source 1514-241.

The files we are using are:

4.5G 2009-04-02 11:14 2009-04-01_1407.C999
4.7G 2009-04-02 11:15 2009-04-01_1543.C999
2.8G 2009-04-02 11:17 2009-04-01_1723.C999
1.9G 2009-04-02 11:17 2009-04-01_1822.C999
3.1G 2009-04-02 11:18 2009-04-01_1938.C999

for a total of 17G.

First atlod:

atlod% inp
  Task:   atlod
  in       = *.C999
  out      = firstnight_1934.uv
  ifsel    = 1,2
  restfreq =  
  options  =  
  nfiles   =  
  nscans   =