Quality Control and
Data Processing

Generally SINFONI calibration data are taken as daytime calibrations. Telluric standard stars and Point Spread Function calibration stars (PSF-stars) are generally observed during the night, as described by the calibration plan (see the SINFONI User's Manual for deteails). If explicitly requested by the user, night time calibrations may also be obtained as part of the Observing Block (OB) which generates the science data (so-called "attached calibrations"). All calibration data taken in SINFONI are processed by QC Garching to obtain calibration solutions. These solutions come as

Types of Raw calibration data

The following types of raw calibration data exist for the SINFONI instrument:

frame	DPR TYPE	Purpose	typical number taken per night and setting
DARK	DARK	detector status, dark level, RON, hot (high dark current) pixels	3
LAMP	FLAT	FLAT,LAMP fixed pattern noise, vignetting, bad pixels	10
WAVE	WAVE,LAMP	wavelength calibration, position of slitlets	2
DISTORTION	DISTORTION,FIBRE,NS-DISTORTION,WAVE,NS-DISTORTION,FLAT,NS	optical distortion, distances between successive slitlets	75+2+2
LINEARITY	LAMP,LINEARITY	Linearity, bad (non-linear) pixels, fixed pattern noise	10
STANDARD STAR	STD and SKY,STD	standard stars for telluric features	2
PSF	P PSF-CALIBRATOR-SKY,PSF-CALIBRATOR	PSF, Strehl ratio	2

SCIENCE products

The following SINFONI calibration products are created from raw calibration files (click here for a complete overview of calibration files and recipes):

raw frame(s)	template/recipe	recipe	description	products, PRO.CATG
DARK	SINFONI_ifu_cal_Dark	sinfo_rec_mdark	create a master dark from set of input raw frames and calculates the RON, generate a hot pixel map.	MASTER_DARK BP_MAP_HP
FLAT LAMP	SINFONI_ifu_cal_mflat	sinfo_rec_mflat	create a master lamp flat and a bad (large deviating) pixel map BP_MAP_NO. Combine with BP_MAP_DI to generate a MASTER bad pixel map.	MASTER_LAMP_FLAT BP_MAP_NO MASTER_BP_MAP
WAVE LAMP	SINFONI_ifu_cal_Arcs	sinfo_rec_wavecal	define high accuracy detector response distribution, only SW	WAVE_MAP SLIT_POS
LINEARITY	SINFONI_ifu_cal_Detlin	sinfo_rec_detlin	fit each pixel by a nth-order polynomial (n=2) and save coefficients in COEFFS_CUBE. Combine outliers map with REF_PIXEL_MAP in BP_MAP_DI.	BP_MAP_DI COEFFS_CUBE
DISTORTION	SINFONI_ifu_cal_NStest	sinfo_rec_distortion	derive optical distortion coefficients and distances of consecutive slits.	DISTORTION SLITLET_DISTANCES
STD	SINFONI_ifu_cal_STD	sinfo_rec_jitter	cube reconstructed and sky-subtracted Telluric Standard star. Extract spectrum, determine instrumental efficiency and response	COADD_STD SPECTRA
PSF	SINFONI_ifu_cal_PSF	sinfo_rec_jitter	collapse PSF reconstructed cube , determine Strehl ratio and obtain the encircled energy	MASTER_PSF AO_PERFORMANCE

The SINFONI calibration scheme, is shown here.

After production and certification, the calibration products are renamed with a more user-friendly scheme which includes type, creation date and relevant setting parameters (click here for the description)

Static Tables

Most of The static calibration files are not obtained by a pipeline recipe. They are updated only when needed (for ex. after an instrument intervention).

CODE	TYPE OF FILE	PRO_CATG	EXAMPLE
GARC	arc line reference table (J, H, H+K, K bands)	REF_LINE_ARC	SI_GARC_050331A_H+K.fits
GBPM	reference bad pixel map (image)	REF_BP_MAP	SI_GBPM_050331A_REF_BP_MAP.fits
GCOL	position of first slitlet column (table)	FIRST_COL	SI_GCOL_050331A_FIRST_COL.fits
GDRS	first guess wavelength dispersion solution table	DRS_SETUP_WAVE	SI_GDRS_050331A_DRS_SETUP_WAVE.fits
GATM	atmospheric dispersion correction table	ATM_REF_CORR	SI_GATM_REF_CORR_J_025.fits *