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 XSHOOTER products start with XS_. During the first year of operations (P84/P85) a different renaming scheme was used. Not all products listed below are delivered to the users, as some are needed only during early steps of the calibration cascade (i.e. not for the processing of science data) or even only needed for quality checks.

Code	description,comment	PRO.CATG	Structure (*)
MBIA	master bias	MASTER_BIAS_<arm>	XS_<CODE>_<date>#_<clock>_<arm>_<ccd> (UVB,VIS)
PCPB	cold pixel map (until version 1.3.13)	BP_MAP_CP_<arm>
PHPB	hot pixel map (until version 1.3.13)	BP_MAP_HP_<arm>
MBPB	master bad pixel map from bias (version 1.3.10 - 1.3.13)	MASTER_BP_MAP_BIAS_<arm>
MDRK	master dark	MASTER_DARK_<arm>	XS_<CODE>_<date>#_<clock>_<arm>_<ccd> (UVB, VIS) XS_<CODE>_<date>#_<dit>_<ndit>_<arm>_<det> (NIR)
PBPD	bad pixel map (up to version 1.3.8)	MASTER_BP_MAP_<arm>
MBPD	master bad pixel map from dark (since version 1.3.10)	MASTER_BP_MAP_DARK_<arm>
PCRD	cosmic ray hit map	CRH_MAP_<arm>
POGF	guess table with order position	ORDER_TAB_GUESS_<arm> XS_<CODE>_<date>#_<binx>x<biny>_<arm>_<ccd> (UVB, VIS) XS_<CODE>_<date>#_<arm>_<det> (NIR)
PACF	arc line list updated by xsh_predict	ARC_LINE_LIST_PREDICT_<arm>
PMCF	model config file update by xsh_predict	XSH_MOD_CFG_OPT_FMT_<arm>
PRLF	table with residuals of fit by xsh_predict to format check data	FMTCHK_RESID_TAB_LINES_<arm>
POCO	table with positions of order centers (xsh_orderpos)	ORDER_TAB_CENTR_<arm>
PRTO	table with residuals of fit by xsh_orderpos	ORDERPOS_RESID_TAB_<arm>
PAC2	arc line list updated by xsh_2dmap	ARC_LINE_LIST_2DMAP_<arm>
PMC2	model config file update by xsh_2dmap	XSH_MOD_CFG_OPT_2D_<arm>
PRL2	table with residuals of fit by xsh_2dmap	WAVE_RESID_TAB_LINES_<arm>
PMCA	config table updated with results of fit by xsh_flexcomp	XSH_MOD_CFG_OPT_AFC_<arm>	XS_<CODE>_<date>#_<slit>_<binx>x_<biny>_<arm>_<ccd> (UVB, VIS) XS_<CODE>_<date>#_<slit>_<arm>_<det> (NIR)
POTA	order edge table updated with results of fit by xsh_flexcomp	ORDER_TAB_AFC_IFU/SLIT_<arm>
MFSL	master slit flat	MASTER_FLAT_SLIT_<arm>	XS_<CODE>_<date>#_S<slit>_<clock>_<arm>_<ccd> (UVB, VIS) XS_<CODE>_<date>#_S<slit>_<arm>_<det> (NIR)
MBPF	master bad pixel map from flat (since version 1.3.10)	MASTER_BP_MAP_FLAT_<arm>
PBSL	fitted background of master slit flats	MFLAT_BACK_SLIT_<arm>
PGSL	grid of background positions for master slit flats	MFLAT_GRID_BACK_SLIT_<arm>
POES	table with positions of order edges (slit)	ORDER_TAB_EDGES_SLIT_<arm>
PWMS	wave map from xsh_wavecal (slit)	WAVE_MAP_<arm>	XS_<CODE>_<date>#_S<slit>_<binx>x<biny>_<arm>_<ccd> (UVB, VIS) XS_<CODE>_<date>#_S<slit>_<arm>_<det> (NIR)
PRTS	table with residuals of fit by xsh_wavecal (slit)	RESID_TAB_GOOD_LINES_<arm>
PTTS	table with line tilts from xsh_wavecal (slit)	TILT_TAB_SLIT_<arm>
PSTS	table with line shifts relative to 9-pinhole positions (slit)	SHIFT_TAB_SLIT_<arm>
MFIF	master IFU flat	MASTER_FLAT_IFU_<arm>	XS_<CODE>_<date>#_<clock>_<arm>_<ccd> (UVB, VIS) XS_<CODE>_<date>#_<arm>_<det> (NIR)
PBIF	fitted background of master IFU flats	MFLAT_BACK_IFU_<arm>
PGIF	grid of background positions for master IFU flats	MFLAT_GRID_BACK_IFU_<arm>
POEI	table with positions of order edges (IFU)	ORDER_TAB_EDGES_IFU_<arm>
PRTU	table with residuals of fit by xsh_wavecal (IFU, upper part)	RESID_TAB_UP_IFU_<arm>	XS_<CODE>_<date>#_<binx>x<biny>_<arm>_<ccd> (UVB, VIS) XS_<CODE>_<date>#_<arm>_<det> (NIR)
PRTC	table with residuals of fit by xsh_wavecal (IFU, central part)	RESID_TAB_CEN_IFU_<arm>
PRTD	table with residuals of fit by xsh_wavecal (IFU, lower part)	RESID_TAB_DOWN_IFU_<arm>
PWMC	wave map by xsh_wavecal (IFU, central part)	WAVE_MAP_<arm>_IFU_CEN
PWMD	wave map by xsh_wavecal (IFU, lower part)	WAVE_MAP_<arm>_IFU_DOWN
PWMU	wave map by xsh_wavecal (IFU, upper part)	WAVE_MAP_<arm>_IFU_UP
PTTC	table with line tilts from xsh_wavecal (IFU, central part)	TILT_TAB_CEN_IFU_<arm>
PTTD	table with line tilts from xsh_wavecal (IFU, lower part)	TILT_TAB_DOWN_IFU_<arm>
PTTU	table with line tilts from xsh_wavecal (IFU, upper part)	TILT_TAB_UP_IFU_<arm>
PSTI	table with line shifts relative to 9-pinhole (IFU)	SHIFT_TAB_IFU_<arm>
PM1F	merged 1D spectrum of flux standard (slit)	FLUX_SLIT_MERGE1D_<arm>	XS_<CODE>_<date>#_S<slit>_<binx>x<biny>_<arm>_<ccd>_<mode> (UVB, VIS) XS_<CODE>_<date>#_S<slit>_<arm>_<det>_<mode> (NIR)
PM2F	merged 2D spectrum of flux standard (slit)	FLUX_SLIT_MERGE2D_<arm>
PO1F	averaged orders of flux standard (slit)	FLUX_SLIT_ORDER1D_<arm>
PO2F	2D orders of flux standard (slit)	FLUX_SLIT_ORDER2D_<arm>
PESF	efficiency from flux standard (slit)	EFFICIENCY_SLIT_<arm>
PNCF	flux standard after cosmic ray rejection (slit, echelle format)	FLUX_SLIT_NOCRH_<arm>
PSBF	background subtracted flux standard (slit, echelle format)	FLUX_SLIT_SUB_BACK_SLIT_<arm>
PSMF	slit map for flux standard (slit, echelle, format)	FLUX_SLIT_SLIT_MAP_<arm>
PSSF	sky-subtracted flux standard (slit, echelle format)	FLUX_SLIT_SUB_SKY_<arm>
PWMF	wave map for flux standard (slit, echelle format)	FLUX_SLIT_WAVE_MAP_<arm>
PRMF	response from flux standard (merged)	RESPONSE_MERGE1D_SLIT_<arm>
PROF	response from flux standard (order by order)	RESPONSE_ORDER1D_SLIT_<arm>
PM1T	merged 1D spectrum of telluric standard (slit)	TELL_SLIT_MERGE1D_<arm>
PM2T	merged 2D spectrum of telluric standard (slit)	TELL_SLIT_MERGE2D_<arm>
PNCT	telluric standard after cosmic ray rejection (slit, echelle format)	TELL_SLIT_NOCRH_<arm>
PO1T	averaged orders of telluric standard (slit)	TELL_SLIT_ORDER1D_<arm>
PO2T	2D orders of telluric standard (slit)	TELL_SLIT_ORDER2D_<arm>
PSKT	fitted sky for telluric standard (slit, echelle format)	TELL_SLIT_SKY_<arm>
PSST	sky-subtracted telluric standard (slit, echelle format)	TELL_SLIT_SUB_SKY_<arm>
PWMT	wave map for telluric standard (slit, echelle format)	TELL_SLIT_WAVE_MAP_<arm>
PM3F	3D cube with merged spectrum of flux standard (IFU)	FLUX_IFU_MERGE3D_DATA_OBJ_<arm>	XS_<CODE>_<date>#_I<slit>_<binx>x<biny>_<arm>_<ccd>_<mode> (UVB, VIS) XS_<CODE>_<date>#_I<slit>_<arm>_<det>_<mode> (NIR)
PT3F	traces of flux standard spectrum in 3D cube (IFU)	FLUX_IFU_MERGE3D_TRACE_OBJ_<arm>
PO3F	3D cube with orders of flux standard (IFU)	FLUX_IFU_ORDER3D_DATA_OBJ_<arm>
PE3F	3D cube with error spectrum of flux standard (IFU)	FLUX_IFU_ORDER3D_ERRS_OBJ_<arm>
PQ3F	3D cube with quality spectrum of flux standard (IFU)	FLUX_IFU_ORDER3D_QUAL_OBJ_<arm>
PM3T	3D cube with merged spectrum of telluric standard (IFU)	TELL_IFU_MERGE3D_DATA_OBJ_<arm>
PT3T	traces of telluric standard spectrum in 3D cube (IFU)	TELL_IFU_MERGE3D_TRACE_OBJ_<arm>
PO3T	3D cube with orders of telluric standard (IFU)	TELL_IFU_ORDER3D_DATA_OBJ_<arm>
PE3T	3D cube with error spectrum of telluric standard (IFU)	TELL_IFU_ORDER3D_ERRS_OBJ_<arm>
PQ3T	3D cube with quality spectrum of telluric standard (IFU)	TELL_IFU_ORDER3D_QUAL_OBJ_<arm>

*: Only given in cases where the naming scheme of the optical UVB and VIS differs from the near infrared NIR products.

The names are composed of several tags:

where:

<date>=Observing date as YYMMDD, e.g. 091101
#=sequential counter, e.g. A, B ...
<binx>=Binning along x-axis, e.g. 1
<biny>=Binning along y-axis, e.g. 2
<slit>=slit width and length, e.g. 0.5x11
<clock>=readout mode, e.g. 100k_hg_2x2 for DET.READ.CLOCK=100k/1pt/hg/2x2
<arm>=arm, e.g. VIS
<ccd>=CCD, e.g. Ct for Catherine
<det>=NIR detector, e.g. H2 for ESO-Hawaii2RG
<mode>=NOD(ding)/STA(re)/OFF(set)

Examples

Daytime Calibrations

XS_MBIA_101016A_100k_hg_1x1_UVB_Ps.fits
XS_PCPB_101016A_100k_hg_1x1_UVB_Ps.fits
XS_PHPB_101016A_100k_hg_1x1_UVB_Ps.fits
XS_MBIA_101016A_400k_lg_1x2_VIS_Ct.fits
XS_PCPB_101016A_400k_lg_1x2_VIS_Ct.fits
XS_PHPB_101016A_400k_lg_1x2_VIS_Ct.fits

XS_MDRK_101016A_245._1_NIR_H2.fits
XS_PBPD_101016A_245._1_NIR_H2.fits

XS_PMCF_101016A_1x1_UVB_Ps.fits
XS_PACF_101016A_1x1_UVB_Ps.fits
XS_POGF_101016A_1x1_UVB_Ps.fits
XS_PRLF_101016A_1x1_UVB_Ps.fits

XS_POCO_101016A_1x1_VIS_Ct.fits
XS_PRTO_101016A_1x1_VIS_Ct.fits

XS_MFSL_101016A_S0.6x11_NIR_H2.fits
XS_PBSL_101016A_S0.6x11_NIR_H2.fits
XS_POES_101016A_S0.6x11_NIR_H2.fits
XS_PBPS_101016A_S0.6x11_NIR_H2.fits
XS_PBPT_101016A_S0.6x11_NIR_H2.fits

XS_PAC2_101016A_1x1_UVB_Ps.fits
XS_PMC2_101016A_1x1_UVB_Ps.fits
XS_PRL2_101016A_1x1_UVB_Ps.fits

XS_PESF_101016A_S5.0x11_1x1_VIS_Ct_OFF.fits
XS_PM1F_101016A_S5.0x11_1x1_VIS_Ct_OFF.fits
XS_PM2F_101016A_S5.0x11_1x1_VIS_Ct_OFF.fits
XS_PO2F_101016A_S5.0x11_1x1_VIS_Ct_OFF.fits
XS_PRSF_101016A_S5.0x11_1x1_VIS_Ct_OFF.fits

XS_PM1T_101016A_S1.2x11_NIR_H2_STA.fits
XS_PM2T_101016A_S1.2x11_NIR_H2_STA.fits
XS_PO2T_101016A_S1.2x11_NIR_H2_STA.fits
XS_PSKT_101016A_S1.2x11_NIR_H2_STA.fits
XS_PSMT_101016A_S1.2x11_NIR_H2_STA.fits
XS_PSST_101016A_S1.2x11_NIR_H2_STA.fits
XS_PWMT_101016A_S1.2x11_NIR_H2_STA.fits

XS_PSTS_101016A_S1.3x11_1x1_UVB_Ps.fits
XS_PTTS_101016A_S1.3x11_1x1_UVB_Ps.fits

XS_MFIF_101009A_100k_hg_1x1_UVB_Ps.fits
XS_PBIF_101009A_100k_hg_1x1_UVB_Ps.fits
XS_PGIF_101009A_100k_hg_1x1_UVB_Ps.fits
XS_POEI_101009A_100k_hg_1x1_UVB_Ps.fits

XS_PRTC_101005A_1x1_VIS_Ct.fits
XS_PRTD_101005A_1x1_VIS_Ct.fits
XS_PRTU_101005A_1x1_VIS_Ct.fits
XS_PSTI_101005A_1x1_VIS_Ct.fits
XS_PTTC_101005A_1x1_VIS_Ct.fits
XS_PTTD_101005A_1x1_VIS_Ct.fits
XS_PTTU_101005A_1x1_VIS_Ct.fits
XS_PWMC_101005A_1x1_VIS_Ct.fits
XS_PWMD_101005A_1x1_VIS_Ct.fits
XS_PWMU_101005A_1x1_VIS_Ct.fits


STD_SLIT

XS_PM1F_101001A_S5.0x11_1x1_UVB_Ps_OFF.fits
XS_PM2F_101001A_S5.0x11_1x1_UVB_Ps_OFF.fits
XS_PO2F_101001A_S5.0x11_1x1_UVB_Ps_OFF.fits

XS_PM1T_101001A_S1.5x11_1x1_VIS_Ct_STA.fits
XS_PM2T_101001A_S1.5x11_1x1_VIS_Ct_STA.fits
XS_PO2T_101001A_S1.5x11_1x1_VIS_Ct_STA.fits
XS_PSKT_101001A_S1.5x11_1x1_VIS_Ct_STA.fits
XS_PSMT_101001A_S1.5x11_1x1_VIS_Ct_STA.fits
XS_PSST_101001A_S1.5x11_1x1_VIS_Ct_STA.fits
XS_PWMT_101001A_S1.5x11_1x1_VIS_Ct_STA.fits

STD_IFU

XS_PE3F_101005A_I1x12.6_NIR_H2_OFF.fits
XS_PM3F_101005A_I1x12.6_NIR_H2_OFF.fits
XS_PO3F_101005A_I1x12.6_NIR_H2_OFF.fits
XS_PQ3F_101005A_I1x12.6_NIR_H2_OFF.fits
XS_PT3F_101005A_I1x12.6_NIR_H2_OFF.fits

XS_PE3T_101005A_I1x12.6_1x1_UVB_Ps_STA.fits
XS_PM3T_101005A_I1x12.6_1x1_UVB_Ps_STA.fits
XS_PO3T_101005A_I1x12.6_1x1_UVB_Ps_STA.fits
XS_PQ3T_101005A_I1x12.6_1x1_UVB_Ps_STA.fits
XS_PT3T_101005A_I1x12.6_1x1_UVB_Ps_STA.fits

Code	description,comment	PRO.CATG
GALF	arc line list for AFC frames (xsh_flexcomp)	ARC_LINE_LIST_AFC_<arm>
GALL	full arc line list	ARC_LINE_LIST_<arm>
GEXT	table with atmospheric extinction coefficients	ATMOS_EXT_<arm>
GHAW	table with high telluric absorption regions	HIGH_ABS_WIN_<arm>
GMCT	config table (physical model mode only)	XSH_MOD_CFG_TAB_<arm>
GSFT	spectral fomat table	SPECTRAL_FORMAT_TAB_<arm>
GSLL	sky line list	SKY_LINE_LIST_<arm>
GSTF	flux standard star catalog	FLUX_STD_CATALOG_<arm>
PBPL	non-linearity bad pixel map	BP_MAP_NL_<arm>

where:
<date>=Observing date as YYMMDD, e.g. 091105
#=sequential counter, e.g. A, B ...
<arm>=arm, e.g. VIS

Examples

XS_GALF_100331A_NIR.fits
XS_GALL_100331A_UVB.fits
XS_GEXT_100331A_VIS.fits
XS_GMCT_100331A_NIR.fits
XS_GSFT_100331A_VIS.fits
XS_GSLL_100331A_UVB.fits
XS_GSTF_100930A_NIR.fits
XS_GTTI_100331A_UVB.fits
XS_GTTM_100331A_VIS.fits
XS_GTTS_100331A_UVB.fits
XS_PBPD_100331A_1._1_NIR_H2.fits 

Code	description,comment	PRO.CATG	Structure
SSM1	1D merged spectrum	SCI_SLIT_MERGE1D_<arm>	XS_<CODE>_<ob_id>_<datetime>_S<slit>_<binx>x<biny>_<arm>_<mode> (UVB, VIS) XS_<CODE>_<ob_id>_<datetime>_S<slit>_<arm>_<mode> (NIR)
SSM2	2D merged spectrum	SCI_SLIT_MERGE2D_<arm>
SSO1	1D extracted orders	SCI_SLIT_ORDER1D_<arm>
SSO2	2D rectified orders	SCI_SLIT_ORDER2D_<arm>
SSSB	background subtracted frame	SCI_SLIT_SUB_BACK_SLIT_<arm>
SSSK	sky background	SCI_SLIT_SKY_<arm>
SSSS	sky-subtracted frame	SCI_SLIT_SUB_SKY_<arm>
SSSM	slit map	SCI_SLIT_SLIT_MAP_<arm>
SSWM	wave map	SCI_SLIT_WAVE_MAP_<arm>
SSNC	cosmic ray cleaned frame	SCI_SLIT_NOCRH_<arm>
SKM2	2D merged sky spectrum	SKY_SLIT_MERGE2D_<arm>
SKO2	2d rectified orders of sky spectrum	SKY_SLIT_ORDER2D_<arm>
SFM1	flux-calibrated 1D merged spectrum	SCI_SLIT_FLUX_MERGE1D_<arm>
SFM2	flux-calibrated 2D merged spectrum	SCI_SLIT_FLUX_MERGE2D_<arm>
SFO1	flux-calibrated 1D extracted orders	SCI_SLIT_FLUX_ORDER1D_<arm>
SFO2	flux-calibrated 2D rectified orders	SCI_SLIT_FLUX_ORDER2D_<arm>
SIM3	3D cube with merged spectrum	SCI_IFU_MERGE3D_DATA_OBJ_<arm>	XS_<CODE>_<ob_id>_<datetime>_I<slit>_<binx>x<biny>_<arm>_<mode> (UVB, VIS) XS_<CODE>_<ob_id>_<datetime>_I<slit>_<arm>_<mode> (NIR)
SIT3	traces of spectrum in 3D cube	SCI_IFU_MERGE3D_TRACE_OBJ_<arm>
SIO3	3D cube with orders	SCI_IFU_ORDER3D_DATA_OBJ_<arm>
SIE3	3D cube with error spectrum	SCI_IFU_ORDER3D_ERRS_OBJ_<arm>
SQ3	3D cube with quality spectrum	SCI_IFU_ORDER3D_QUAL_OBJ_<arm>

where:
<ob_id>=OB Identification Number, e.g., 197375
<datetime>=Observing date as YYYYMMDDTHH:MM:SS.SSS, e.g., 2009-11-16T04:35:41.758
<binx>=Binning along x-axis, e.g. 1
<biny>=Binning along y-axis, e.g. 2
<slit>=slit width and length, e.g. 0.5x11
<arm>=arm, e.g. VIS
<mode>=NOD(ding)/OFF(set)/STA(re)

Examples

SCI_SLIT

XS_SKM2_200207433_2010-10-02T01:04:12.485_S1.0x11_1x1_UVB_OFF.fits
XS_SKO2_200207433_2010-10-02T01:04:12.485_S1.0x11_1x1_UVB_OFF.fits
XS_SSM1_200207433_2010-10-02T01:04:12.485_S1.0x11_1x1_UVB_OFF.fits
XS_SSM2_200207433_2010-10-02T01:04:12.485_S1.0x11_1x1_UVB_OFF.fits
XS_SSO2_200207433_2010-10-02T01:04:12.485_S1.0x11_1x1_UVB_OFF.fits
XS_SSSK_200207433_2010-10-02T01:04:12.485_S1.0x11_1x1_UVB_OFF.fits

XS_SSM1_200207433_2010-10-02T00:54:44.040_S0.9x11_1x1_VIS_NOD.fits
XS_SSM2_200207433_2010-10-02T00:54:44.040_S0.9x11_1x1_VIS_NOD.fits
XS_SSO2_200207433_2010-10-02T00:54:44.040_S0.9x11_1x1_VIS_NOD.fits

XS_SSM1_200207433_2010-10-02T01:28:27.792_S0.9x11_NIR_STA.fits
XS_SSM2_200207433_2010-10-02T01:28:27.792_S0.9x11_NIR_STA.fits
XS_SSO2_200207433_2010-10-02T01:28:27.792_S0.9x11_NIR_STA.fits
XS_SSSK_200207433_2010-10-02T01:28:27.792_S0.9x11_NIR_STA.fits
XS_SSSM_200207433_2010-10-02T01:28:27.792_S0.9x11_NIR_STA.fits
XS_SSSS_200207433_2010-10-02T01:28:27.792_S0.9x11_NIR_STA.fits
XS_SSWM_200207433_2010-10-02T01:28:27.792_S0.9x11_NIR_STA.fits

SCI_IFU

XS_SIE3_503093_2010-10-06T00:05:51.965_I1x12.6_1x1_UVB_STA.fits
XS_SIM3_503093_2010-10-06T00:05:51.965_I1x12.6_1x1_UVB_STA.fits
XS_SIO3_503093_2010-10-06T00:05:51.965_I1x12.6_1x1_UVB_STA.fits
XS_SIQ3_503093_2010-10-06T00:05:51.965_I1x12.6_1x1_UVB_STA.fits
XS_SIT3_503093_2010-10-06T00:05:51.965_I1x12.6_1x1_UVB_STA.fits