Pipeline Products

To allow identification of pipeline products, some keywords are inserted in the output FITS headers.

• PIPEFILE is a standard 8-char FITS keyword which contains the name of the file as set by the pipeline when creating the product, it is useful as a label to identify the file. If this keyword is not set in your products, you can use the is_rename recipe to rename your files and set this keyword accordingly. Nothing requires this name to be set, it is only here for convenience.
• PRO.DID contains the version number of the dictionary used for all product keywords.
• PRO.TYPE contains the type of the data products as one of 'TEMPORARY', 'PREPROCESSED', 'REDUCED', or 'QCPARAM'.
• PRO.REDLEVEL contains the reduction status of the file, its possible values are not clearly defined yet for infrared instruments.
• PRO.CATG is probably the most important product keyword, since it labels each frame with a product ID unique to the recipe. It qualifies files with hopefully understandable product labels.
• PRO.STATUS specifies whether the reduction performed OK or whether some warnings were issued by the algorithm.
• PRO.DATE gives the date and time of the pipeline execution for the frame creation.
• PRO.REC.ID identifies the recipe that generated the file, with a unique name.
• PRO.REC.DRS.ID identifies the Data Reduction System that was used to produce the file (eclipse for all ISAAC recipes).
• PRO.DATANCOM specifies the number of raw frames that were combined to generate the product. Its exact meaning depends on the recipe, see each recipe documentation to learn what it refers to.

ISAAC files from which the electrical ghost has been removed, contain two additional keywords:

• GHOSTREM is a FITS boolean set to T(rue) if the electrical ghost removal procedure has been applied to the frame.
• GHOSTVER is an ID of the algorithm used for ghost correction.