SELF step
Keywords: imager

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### `SELF` step

The `SELF` button will use the list of Wide Band UV tables to compute a (phase and amplitude) Self calibration solution, and apply it to all UV tables. It will identify which UV tables correspond to a given Wide Band one, so that the proper self calibration solution is applied.

The self calibrated UV tables are placed in another sub-directory (cyan`./SELF/` by default, controlled by blue`all%self`).

A prefix (controlled by blue`all%prefix_self`) can be added to the file names to remind the user that they have been self-calibrated.

Caveats: CURRENT LIMITATIONS
- No provision is made to use spectral line flux when the continuum flux is too low.
- Thus, if the Self-calibration solution is not good, you should not apply it. The `COLLECT` step may help at this stage.