Standard Calibration

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Standard Calibration

This tool is designed to calibrate a standard NOEMA project. The name of the hpb (header) file must be specified in the Standard Calibration widget (Fig. ) to start. A limited scan range can be selected to perform a complete or partial calibration. By default all the scans are considered. The receiver band used in the observations is determined by clicking on Select.

Figure: Standard Calibration, in the CLIC menu

The calibration must be done by clicking on the proposed steps from left to right. Select is so needed at first, and also before repeating any part of the calibration. The last option Print combines all the postscript files created of each calibration step in a single file called `date'-`projectname'.ps. This package is an interactive tool which pauses for an input from the astronomer. It is not recommended therefore to click on the GO (see Sect. ).

The option Use previous settings (in the widget; Fig. ) permits to adopt settings coming from a previous calibration of the selected hpb file, with respect to the atmospheric phase correction, scan ranges, selected bandpass calibrator, etc.

Finally, note that all the plots created within the Standard Calibration are presented for logical antennas, which are sometimes different from the physical ones shown in the First Look outputs (see Sect. and App. ).

Subsections

- Select
- Autoflag
- PhCor
- RF calibration
- Phase calibration
- Flux calibration
- Amplitude calibration
- Print
- Usual difficulties
- FAQ
- Other calibration procedures