Keywords: sic-gdfv2

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## SIC variables

Some SIC variables mapping the file header (of any kind) have changed:

- `head%dim[:]` is now a long integer array of dimension 7;
- `head%where[1]` and `head%where[2]`, the ``flat'' positions of the maximum and minimum values have been removed , replaced respectively by `head%minloc[:]` and `head%maxloc[:]` array coordinates in the datacube.
- `head%gene` is now the length of only the dimension section.

New possibilities linked to the new UV data format are reflected in SIC. The command `DEFINE UV` checks more strictly the type of data. It defines the following additional SIC variables

        head%basemin    Minimum baseline
        head%basemax    Maximum baseline
        head%nvisi      Number of visibilities
        head%nchan      Number of channels
        head%nstokes    Number of Stokes parameter
        head%natom      Complex visibility size

In addition, for transposed UV tables, `Head%U` and `Head%V` SIC arrays are defined to point towards the U and V columns.