Calibration Operator Reference

This chapter documents every operator available for user configuration in the HOPS4 fringe-fitting pipeline. Operators are broadly divided into two groups:

Configurable operators, which are triggered by, or have parameters accessible through, user-issued control file statements or fourfit4 command line arguments.

Non-configurable operators compartmentalize portions of the internal fringe-finding algorithm and are not directly accessible from the control file. They are triggered automatically by the pipeline based on data attributes or pipeline state.

The configurable operators are organized into functional categories. During runtime each category is initialized and executed in the following order:

  1. Labeling

  2. Selection

  3. Flagging

  4. Calibration

  5. Pre-fit (user Python hooks)

  6. Post-fit (user Python hooks)

  7. Finalize

Within each category, execution order is determined by the operator’s priority value, a lower value means earlier execution.

Configurable Operators

Non-Configurable Operators

Note: documentation for the non-configurable operators is a work in progress.