Quality Control and
Data Processing

The names of all calibration pipeline products follow a certain naming convention. This is done to have human-readable rather than technical file names. The naming scheme has been chosen to have the type of product, its date of creation, and its pipeline-relevant setup values recognizable in the product name.

The general format of user-oriented product file names is the same for all VLT/VLTI instruments.

On the archive interface, the master calibrations can be associated to science files and downloaded. Then they carry technical filenames (the archive filename ARCFILE). In order to rename them to the original filenames, search for the fits header key ORIGFILE. The naming scheme of ORIGFILE is described here.

Instrument code

All product names start with two letters which are specific for the instrument. For instance: UVES product names start with 'UV', VISIR names with 'VR'.

Product category

The full value of the product category is coded in the FITS header key HIERARCH.ESO.PRO.CATG. A short form of this tag is encoded in four characters being unique per instrument:

1st letter	M or P	calibration product
	G	general (static) calibration product
2nd to 4th letter	...	type of product

Calibration products come in two flavours: dynamic ones (being updated regularly, short validity), and static ones (never or rarely updated). The static ones are also called 'general' because they often are not derived from raw data (like e.g. a line catalogue).

Both product types are stored in the archive and are available for download through the calSelector service.

All MUSE pipeline product names start with "MU_".

Dynamic calibrations. There are following types of dynamic calibration products of MUSE:

Code	type of file	PRO_CATG
MBIA	master bias	MASTER_BIAS
MDRK	master dark	MASTER_DARK
MFLA	master lamp flat	MASTER_FLAT
PFTT	slices tracing table	TRACE_TABLE
MFLS	master sky flat	MASTER_SKYFLAT
PWCT	wavecal table	WAVECAL_TABLE
MDCS	datacube for standard star	DATACUBE_STD
MSDR	instrument response	STD_RESPONSE
MSDT	telluric lines	STD_TELLURIC
MDCA	datacube for astrometry	DATACUBE_ASTROMETRY
MAWC	wcs from astrometric observation	ASTROMETRY_WCS

Static calibrations. The following table lists the codes in the name scheme:

Code	type of file	PRO_CATG
GASR	astrometry reference table	ASTROMETRY_REFERENCE
GBPT	bad pixel table	BADPIX_TABLE
GEOT	geometry table	GEOMETRY_TABLE
GEXT	extinction table	EXTINCT_TABLE
GFIL	list of filters	FILTER_LIST
GLNC	catalog of spectroscopic lines	LINE_CATALOG
GSFT	standard stars flux table	STD_FLUX_TABLE
GSKL	sky lines	SKY_LINES
GLST	lsf table	LSF_TABLE

The remaining part of the names follow the same convention as for the dynamic products (see below).

Date of origin, version

The date of origin is identical to the date of the raw data measurement. It is coded like, e.g., 141015 for Oct 15, 2014.

The version of a file is indicated by capital letters, starting with A. Versioning is supported when reasonable, otherwise it is always A.

Instrument parameters

The instrument parameters characterizing a setup are included in the product name. Most MUSE products have the following scheme:

<INS.MODE>_<INS.OPTI1.NAME><DET.READ.CURNAME>
where

• INS.MODE is either WFM-NOAO-E (wide field mode - no AO - extended range) or WFM-NOAO-N (wide field mode - no AO - nominal range), or WFM-AO-N_Blue-Na2, WFM-AO-E_Na correspondingly
• INS.OPTI1.NAME (filter) is either Clear, Blue for noAO and Na Blue-Na2 for AO modes
• DET.READ.CURNAME is SCI1.0 or FAST.

Static calibration products either have some setup part, or contain some self-explanatory string like e.g. MU_GSFT_140101A_stdflux_table.fits for the standard stars' table.

Extension

All product files have extension .fits. They have either image format or binary table format. NOTE: all MUSE image pipeline products have in addition to the image part extensions with the statistics (STAT) and data quality (DQ) for each IFU/CHANNEL.

Examples

MU_MBIA_140822A_WFM-NOAO-E_Clear_SCI1.0.fits: master bias taken on 2014-08-22

MU_MFLA_140606B_WFM-NOAO-N_Blue_SCI1.0.fits: master flatfield taken on 2014-06-06 (second one that day).