Open raw data file
Keywords: pdbi-cookbook

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Open raw data file

The data obtained at Plateau de Bure are stored in files of extension `IPB`. The parameters derived from the calibration are stored in files of extension `hpb` (or header files). A naked version of these files can be created with the option `Open raw data file` (Figure ) in the CLIC menu (Figure ).

First of all, the location of the raw data (`IPB` files) must be defined, either by clicking in `RAW DATA DIRECTORIES` (see Figure ) or within the `.gag.dico` gildas file. In the IRAM project accounts (see Sect. ) the location of the raw data is already predefined. A raw data file must be selected among the `Project_Date` choices. `OPEN and FIND` opens this file and proposes a standard name for the output file. `CREATE HEADER FILE` creates a `hpb` file ready to calibrate the data in antenna-based mode. By default `Mode` (in the widget) is NEW, and so a new `hpb` file is created each time. By selecting OLD, visibilities can be added to an existing `hpb` file, which is very convenient if observations were contiguous in time.

Figure: `Open raw data file`, in the CLIC menu.

In this and the following widgets there are at the top the options `GO` and `ABORT`. `GO` is aimed to run all the options proposed as clickable buttons, from left to right, with no stop. In general, its use is only recommended for the `First Look` (see Sect. ). `ABORT` closes the widget and returns to the parent widget.

As mentioned in Sect. , the `hpb` files resulting from the NOEMA pipeline calibration are given in the directory `reports`. We recommend not to use them to create the final uv-tables since, for the time being, they were not created with this purpose and so may include severe flags or artifacts due to a further AoD analysis.

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