TABLE  RequiredStack

Contains details of default stack image products curated in the archive.

This table contains details of all the default image stack products that
are curated within the archive as part of the requirements for a
particular survey. For example, the UKIDSS UDS is a deep stacked survey.
The stacking curation task implemented within the archive uses the
information in this table to produce the required stack(s) for a given
programme when invoked as part of archive operations.

Required constraints:
  • Primary key is (programmeID,productID)
  • (programmeID) references Programme(programmeID)
  • (filterID) references Filter(filterID)

NameTypeLengthUnitDescriptionDefault ValueUnified Content Descriptor
programmeIDint4 the unique programme ID ID_SURVEY
productIDint4 A unique identifier assigned to each required stack product entry ??
namevarchar64 Name of the stacked product ??
descriptionvarchar256 Description of the product ??
filterIDtinyint1 UID of combined filter (assigned in WSA: 1=Z,2=Y,3=J,4=H,5=K,6=H2,7=Br,8=blank) INST_FILTER_CODE
rafloat8degreesRight Ascension of stack centre POS_EQ_RA_MAIN
decfloat8degreesDeclination of stack centre POS_EQ_DEC_MAIN
numberStkint4 Number of intermediate stacks. If default, stack all good quality stacks-99999999 
maxSeeingreal4arcsecThe maximum allowed seeing for intermediate stacks  
maxStelEllreal4 The maximum allowed stellar ellipticity for intermediate stacks  
wcsvarchar1 CASU stacking tool option to switch use of image WCS to register images (y/n; recommended value=y) ??
clipvarchar1 CASU stacking tool option to perform 3-sigma (robustly estimated) clipping before stacking pixels (y/n; recommended value=y) ??
extractToolvarchar8 Name of extraction tool to be used'CASU'??
nPixelssmallint2 CASU/SEX source extraction tool option for minimum number of connected pixels in a detected source (recommended value=4)-9999??
thresholdreal4sigmaCASU/SEX source extraction tool option for the isophotal analysis threshold (recommended value=1.5)-0.9999995e9??
crowdtinyint1 CASU source extraction tool option to switch on/off (1/0) crowded field analysis (recommended value=1)0??
rCorereal4pixelsCASU/SEX source extraction tool option for default profile fitting radius (recommended value=expected image FWHM)-0.9999995e9??
nBlockSizesmallint2pixelsCASU/SEX source extraction tool option to override the default background blockdown size (=64, the recommended value)-9999??
dualFilterIDtinyint1 SEX extraction tool option to run in dual image mode UID of dual image filter (assigned in WSA: 1=Z,2=Y,3=J,4=H,5=K,6=H2,7=Br,8=blank)0INST_FILTER_CODE
fwhmreal4pixelsSEX source extraction tool option for mosaic FWHM-0.9999995e9??
convFiltervarchar20 SEX source extraction tool option - name of convolution filter to be used ??
Total length405