4.6.2 On the IMAGER side

The UVFITS files have first to be converted to uv tables. The easiest way is to use the PIPELINE ORGANIZE command in the directory where your UVFITS files are located. See the Section 12 for details.

Direct reading of UVFITS data through READ UV is also supported, but with limited capabilities: see Section 4.7.

Alternatively, the conversion can be done by a simple script

  sic find *.uvfits
  for string /in dir%file
    @ fits_to_uvt 'string'
  next

Each Source-Frequency.uvfits file will be converted to a Source-Frequency.uvt uv table (the original .uvfits file is kept too).

The fits_to_uvt script is based on the FITS command of SIC, but augmented with a number of tests to recognize the proper layout of the UVFITS file, as this layout depends on which CASA version was used, and whether it is a single source or multi source file.

The fits_to_uvt script has a number of options. Help can be obtained by typing

@ fits_to_uvt ?