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
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.
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:
M or P
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).
product types are stored in the archive and are available for download through
the calSelector service.
response curve from a single standard star measurement
efficiency curve from a single standard star measurement
master response curve (created from several individual response curves)
master slit flat
other slit flat products
SLIT_FF_xxx_ (see below)
master fibre flat products
FIB_FF_xxx_ (see below)
order definition frame
guess order definiton table
order definition table
guess line table
*For the complete value of PRO.CATG, the designation of the chip has to be added: =BLUE, REDL, or REDU
**ECH: UVES-Echelle (i.e. usage as single-object spectrograph); MOS: UVES-Fibre aka FLAMES-UVES (i.e. usage as multi-object spectrograph)
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 for certain types of files only (see table above). In all other cases, only one version per day is created (version is always A).
Those parameters which are relevant for the specific type of calibration product are included in its name. The following schemes are used:
USED FOR FILE TYPES
PDRS, PLIN, MFLT, MDFT, MIFT
PORD, PBKG, PGUE, PEFC, PRSP
MFxx, MSxx, PDRS, PORD, PLIN
PGUE, PODF, POGU
BLUE, REDL, REDU
in nm (e.g. 580)
observation mode (INS.MODE keyword)
bl: blue arm; re: red arm; d1: dichroic#1, d2: dichroic#2; fi: fibre mode
detector binning (x times y)
1x1, 2x2, 1x2, 2x3
slit width in arcsec * 10
(e.g. 0.5 arcs are coded as 05, and 2.1 arcs as 21)
1 or 2
0: calibrations for science that do not use the simultaneous calibration fibre; 1: for science that use the simultaneous calibration fibre
is set according to the value of the INS.SLIT3.MODE keyword (from the fits headers): 6FIB or 8FIB means SIMCAL=0, 7+1FIB means SIMCAL=1.
All products generated by the pipeline have extension .fits.
Master products from slit and fibre flats (UVES-MOS)
There is a large number of pipeline products that are derived from combining slit and fibre flat fields. From Period 74 on (i.e. from 1 October 2004), these products are coded with MSxx or MFxx: