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6.2 Data types and file naming conventions

All files provided with the T0007 release are listed and briefly described in Tables 23 to 26. The CFHT input image names are the native CFHT odometer numbers. Terapix preserves this naming convention for all relevant files attached to single images, such as the weight-maps, the QualityFITS.ldac catalogues or the astrometric calibration files.

File name

Content

Data Size      Number     Access

type of files      

#[cfht-odometer]p.fits

Individual input images

mef-fits binary 16 0.7 GB 6378 Wide cadc

8916 Deep
#[cfht-odometer]p_weight.fits

Individual weight-map images

mef-fits binary -32 1.4 GB 6378 Wide cadc

8916 Deep
#[cfht-odometer]p.ldac

Single image early catalogues

fits binary-table 8 11 MB 6378 Wide terapix

8916 Deep
#[cfht-odometer]p.ahead

Individual astrometric calibration files

ascii 100 kB 6378 Wide terapix

8916 Deep
#[cfht-odometer]p.head

Individual photometric calibration files

ascii 1.5 kB 6378 Wide terapix

8916 Deep
#[cfht-odometer]p/

qfits-in directories

qa files, various type 350 MB 6378 Wide terapix

8916 Deep

cfhtls_w_[f]_ra-dec_t0007_median.fits

Wide stack science images

fits binary -32 1.4 GB 855 cadc
cfhtls_w_[f]_ra-dec_t0007_median_weight.fits

Wide stack weight maps

fits binary -32 1.4 GB 855 cadc

cfhtls_w_gri_ra-dec_t0007_median.fits

Wide chi2 stacks, for i stacks

fits binary -32 1.4 GB 139 cadc

gri combined

cfhtls_w_gri_ra-dec_t0007_median_weight.fits

Wide chi2 weight map for i stacks,

fits binary -32 1.4 GB 139 cadc

gri combined

cfhtls_w_gry_ra-dec_t0007_median.fits

Wide chi2 image for y stacks,

fits binary -32 1.4 GB 32 cadc

gry combined

cfhtls_w_gry_ra-dec_t0007_median_weight.fits

Wide chi2 weight map for y stacks,

fits binary -32 1.4 GB 32 cadc

gry combined

cfhtls_w_[f]_ra-dec_t0007_median.ldac

Wide stack catalogues

fits binary-table 8 50 MB 855 cadc
cfhtls_w_[f]_ra-dec_t0007_median.cat

Wide stack chi2 catalogues

ascii 181 columns 450 MB 855 cadc

cfhtls_w_ugriz_ra-dec_t0007_median_magauto.cat

Wide chi2 merged band catalogues,

ascii 24 colums 50 MB 171 cadc

mag_auto magnitudes


Table 23: CFHTLS files, point-of-access and naming conventions. The first line of the table gives the input images delivered from CFHT. Successive lines refer to Terapix T0007 data products. Access to restricted CADC and Terapix data sets, public figures and plots are possible from the T0007 synoptic table. The number of files for Qfits-in/out refers to the number of directories, each containing around 100 files per directory).

File name

Content

Data Size      Number Access

type of files   

cfhtls_w_ugriz_ra-dec_t0007_median_magsnls.cat

Wide chi2 merged band catalogues,

ascii 29 colums 60 MB 171 cadc

mag_snls magnitudes

cfhtls_w_ugriz_ra-dec_t0007_median.ape

Wide chi2 27+mag_snls aperture

ascii 556 columns 1.3 GB 171 terapix

merged band catalogues

cfhtls_w_[f]_ra-dec_t0007_median.reg

Wide DS9 compliant mask f-band

ascii 100 kB 855 cadc
cfhtls_w_[f]_ra-dec_t0007_median_binmask.fits

Wide binary mask image f-band

fits binary -32 1.4 GB 855 terapix

cfhtls_w_[f]_ra-dec_t0007_median/

Wide f-band stack

qa files, various type 50 MB 855 terapix

qfits-out directory

cfhtls_w_[fff]_ra-dec_t0007.jpg

Wide stacks 3-color image

jpeg 50 MB 513 terapix

(u*gr); (gr[i∕y]); (r[i∕y]z)]

cfhtls_w_ugriz_ra-dec_t0007_median_magauto_fff.png

Wide stellar color-color tracks plots

png 50 kB 417 terapix

(u*-g)/(g-r); (g-r)/(r-i); (r-i)/(i-z)

cfhtls_w_ugriz_ra-dec_t0007_median_magsnls_fff.png

Wide stellar color-color tracks plots

png 50 kB 417 terapix

(u*-g)/(g-r); (g-r)/(r-i); (r-i)/(i-z)

cfhtls_w_ugryz_ra-dec_t0007_median_magauto_fff.png

Wide stellar color-color tracks plots

png 50 kB 96 terapix

(u*-g)/(g-r); (g-r)/(r-y); (r-y)/(y-z)

cfhtls_w_ugryz_ra-dec_t0007_median_magsnls_fff.png

Wide stellar color-color tracks plots

png 50 kB 96 terapix

(u*-g)/(g-r); (g-r)/(r-y); (r-y)/(y-z)

cfhtls_w_[f]_ra-dec_t0007_median_CompLim.png

Wide stacks completeness limit plots f-band

png 60 kB 855 terapix
cfhtls_w_[f]_ra-dec_t0007_median_CompLim.dat

Wide stacks completeness data points f-band

ascii 0 kB 855 terapix
cfhtls_w_[f]_ra-dec_t0007_gal_histo.ps

Wide stacks galaxy counts f-band

ps 50 kB 855 terapix


Table 24: CFHTLS files, point-of-access and naming conventions (cont’d).

File name

Content

Data

Size      Number     Access

type

of files      

Each DEEP product is produced in 4 flavours (D-[28]5 and COMB=MEDIAN/SIGWEI)
N * 4

cfhtls_d-[28]5_[f]_ra-dec_t0007_[comb].fits

Deep [28]5% best seeing stack science image f-band

fits binary -32

1.4 GB 24 * 4 cadc
cfhtls_d-[28]5_[f]_ra-dec_t0007_[comb]_weight.fits

Deep [28]5% best seeing stack weight maps f-band

fits binary -32

1.4 GB 24 * 4 cadc
cfhtls_d-[28]5_gri_ra-dec_t0007_[comb].fits

Deep [28]5% best seeing chi2 image for i stacks, chi2-gri combined

fits binary -32

1.4 GB 4 * 4 cadc
cfhtls_d-[28]5_gri_ra-dec_t0007_[comb]_weight.fits

Deep [28]5% best seeing chi2 weight map for i stacks,chi2-gri combined

fits binary -32

1.4 GB 4 * 4 cadc
cfhtls_d-[28]5_[f]_ra-dec_t0007_[comb].ldac

Deep [28]5% best seeing stack catalogue f-band

fits binary-table 8

50 MB 24 * 4 cadc
cfhtls_d-[28]5_[f]_ra-dec_t0007_[comb].cat

Deep [28]5% best seeing stack chi2 catalogue f-band

ascii 181 columns

500 MB 24 * 4 cadc

cfhtls_d-[28]5_ugriyz_ra-dec_t0007_[comb]_magauto.cat

Deep [28]5% best seeing chi2 catalogue merged band (in magauto)

ascii 27 columns; e(b-v)

100 MB 4 * 4 cadc
cfhtls_d-[28]5_ugriyz_ra-dec_t0007_[comb]_magsnls.cat

Deep [28]5% best seeing chi2 catalogue merged band (in magauto)

ascii 27 columns; e(b-v)

100 MB 4 * 4 cadc
cfhtls_d-[28]5_ugriyz_ra-dec_t0007_[comb].ape

Deep [28]5% best seeing chi2 27 aperture photometry catalogue merged band

ascii 618 columns

3.1 GB 4 * 4 terapix
cfhtls_d-[28]5_[f]_ra-dec_t0007_[comb].reg

Deep [28]5% best seeing DS9 compliant mask f-band

ascii

100 kB 24 * 4 cadc
cfhtls_d-[28]5_[f]_ra-dec_t0007_[comb]_binmask.fits

Deep [28]5% best seeing binary mask image f-band

fits binary -32

1.4 GB 24 * 4 terapix

(2.3 MB .gz)
cfhtls_d-[28]5_[f]_ra-dec_t0007_[comb]/

Deep [28]5% best seeing f-band stack qa: qfits-out directory

qa files, various type

75 MB 24 * 4 terapix
cfhtls_d-[28]5_[fff]_ra-dec_t0007_[comb].jpg

Deep [28]5% best seeing [(u*gr);(gri∕y);(ri∕yz)] 3-color image of stacks

jpeg

50 MB 12 * 4 terapix

Table 25: CFHTLS files, point-of-access and naming conventions (cont’d).

File name

Content

Data

Size Number Access

type

of files

cfhtls_d-[28]5_ugriz_ra-dec_t0007_[comb]_magauto_fff.png

Deep [28]5% best seeing stellar 3-color-color plots (in magauto)

png

200 kB 4 * 4 terapix

(u*-g)/(g-r);(g-r)/(r-i);(r-i)/(i-z)

;(g-r)/(r-y);(r-y)/(y-z)

cfhtls_d-[28]5_ugriz_ra-dec_t0007_[comb]_magsnls_fff.png

Deep [28]5% best seeing stellar 3-color-color plots (in magsnls)

png

200 kB 4 * 4 terapix

(u*-g)/(g-r);(g-r)/(r-i);(r-i)/(i-z)

;(g-r)/(r-y);(r-y)/(y-z)

cfhtls_d-[28]5_[f]_ra-dec_t0007_[comb]_CompLim.png

Deep [28]5% best seeing stacks completeness limit plots f-band

png

60 kB 24 * 4 terapix
cfhtls_d-[28]5_[f]_ra-dec_t0007_[comb]_CompLim.dat

Deep [28]5% best seeing stacks completeness data points f-band

ascii

0 kB 24 * 4 terapix
cfhtls_d-[28]5_[f]_ra-dec_t0007_[comb]_gal_histo.ps

Deep stacks galaxy counts f-band

ps

50 kB 24 * 4 terapix


Table 26: CFHTLS files, point-of-access and naming conventions (cont’d).

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