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.

Convention for calibration products

All PIONIER pipeline product names start with "PI_".

Dynamic calibrations.

The following types of dynamic calibration products of PIONIER exist:

MODE	TYPE OF FILE	PRO_CATG
MGAI	gain	PIONI_DETMON_GAIN
MBPM	bad pixel Map (full detector)	PIONI_MASTER_BPM
MMBP	bad pixel Map (science pixels)	PIONI_MASTER_BPM_MASKED
MDRK	dark	DARK_CALIBRATION
MSPE	spectral calibration (Lamp)	SPECTRAL_CALIBRATION
MKAP	Interferometric transmission (kappa on liamp or object)	KAPPA_MATRIX
MIFR	Visibility and CP (lamp)	LAMP_OIDATA_RAW
MSPO	spectral calibration (object)	OBJECT_SPECTRAL_CALIBRATION
MCFR	Visibility and CP (lapm)	CALIB_OIDATA_RAW
MCTF	TF (calibrator)	OIDATA_TF

Date of origin, version

The date of origin is identical to the date of the raw data measurement. It is coded as, e.g., 011015 for Oct 15, 2001. The version of a file is indicated by capital letters always starting with A. Versioning is supported.

The calibrator catalog starts with PI_GCAL_

Instrumental parameters

Those parameters which are relevant for the specific type of calibration product are included in its name.
For the astronomical calibrators the following keywords are used to identify relevant parameters in the product name:

KEYWORD	Description
INS.OPTI2.NAME	Dispersive element
DET.POLAR	Gain
DET.SUBWINS	number of subwindows
OBS.TARG.NAME	target name
ISS.CONF.STATION1	station1
ISS.CONF.STATION2	station2
ISS.CONF.STATION3	station3
ISS.CONF.STATION4	station4

For most of the other calibration products only INS.OPTI2.NAME, DET.POLAR, DET.SUBWINS are used