This directory and subdirectories contain sample calibration and configuration files used to process DECam images by the DESDM firstcut and finalcut pipelines into detrended images.

A fuller description of the processing steps is contained in Morganson et al. 2018.

Please note that the internal format of some of these files is not fully documented here, but mechanisms to read the contents of these files may be found embedded in the associated codes in the github repositories and elsewhere.

Please note that when a set of calibration file has separate entries by ccdnum and/or by filter, that only one ccdnum and/or filter sample element file is included here.

The set of sample cal/config of files included:

Brighter-fatter deconvolution matrix:

http://data.darkenergysurvey.org/aux/sample/cal/bf/20170407-r2959/p01/D_n20170406_r2959p01_bf.fits

Bad pixel map (ccdnum=1 only)

http://data.darkenergysurvey.org/aux/sample/cal/bpm/20170201t0213-r2927/p01/D_20170201t0213_c01_r2927p01_bpm.fits

Non-linearity correction table for each ccdnum/amp:

http://data.darkenergysurvey.org/aux/sample/cal/lintable/lin_tbl_v0.7.fits

Binned-full-focal-plane r-band (only) sky template correction map, co-efficents:

http://data.darkenergysurvey.org/aux/sample/cal/skytemp/20170103t0315-r2932/p01/binned-fp/Y4A1_20170103t0315_r_r2932p01_skypca-binned-fp.fits

Full (unbinned) sky template PCA (4-component) correction map (ccdnum=1, r-band only):

http://data.darkenergysurvey.org/aux/sample/cal/skytemp/20170103t0315-r2932/p01/tmpl/Y4A1_20170103t0315_r_c01_r2932p01_skypca-tmpl.fits

Skyflat (low-frequency multiplicitive response correction map, g-band, ccdnum=1):

http://data.darkenergysurvey.org/aux/sample/cal/starflat/20170103t0315-r2933/p01/Y4A1_20170103t0315_g_c01_r2933p01_starflat.fits

Crosstalk amp-to-amp, ccd-to-ccd correction coefficients:

http://data.darkenergysurvey.org/aux/sample/cal/xtalk/20130606/DECam_20130606.xtalk

TPV WCS astrometric chip position/rotation/scale/cubic coefficients (i-band):

http://data.darkenergysurvey.org/aux/sample/config/20170531/finalcut/20170531_decam_pvmodel_Y4E2_i.ahead

Updates to SISPI (DAQ) default ccd readnoise, fullwell, gains for select chips:

http://data.darkenergysurvey.org/aux/sample/config/20170531/finalcut/20170531_DES_header_update.20170329

Dome flat (Y-band ccdnum=1 only):

http://data.darkenergysurvey.org/aux/sample/precal/20150212-r1402/p01/dflatcor/D_n20150212_Y_c01_r1402p01_dflatcor.fits

Bias image (ccdnum=1 only):

http://data.darkenergysurvey.org/aux/sample/precal/Y4N/20170208-r2923/p01/biascor/D_n20170208_c01_r2923p01_biascor.fits

Supercal bias (average of 10-30 precal bias images, ccdnum=1):

http://data.darkenergysurvey.org/aux/sample/supercal/Y4N/20170201t0213-r2922/p01/biascor/D_n20170201t0213_c01_r2922p01_biascor.fits

Supercal dome flat (average of 10-30 precal dome flat images, ccdnum=1, z-band):

http://data.darkenergysurvey.org/aux/sample/supercal/Y4N/20170201t0213-r2922/p01/norm-dflatcor/D_n20170201t0213_z_c01_r2922p01_dflatcor.fits