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The Dark Energy Survey (DES; DES Collaborati= on, 2005, DES Collaboration, 2016) Scie= nce Verification (SV) period was a post-commissioning testing phase du= ring which a mini-survey was performed to a depth comparable to the 5-year = DES survey. The purpose of SV was to verify that the Dark Energy Camer= a (DECam; Flaugher et al., 2015) = system was capable of producing science-quality data at a rate that would m= eet the DES science requirements. Between 2012 November 1 and 2013 February 22, 10,000+ SV exposures were collected by = DECam and subsequently reduced with an early version of the DES Data M= anagement (DESDM) software stack (Sevilla et al. 2011, Mohr et al. 2012, Gruendl et al. i= n prep). Both the raw and the reduced single-epoch images are available= from the NOAO science archive.
The data products provided here come from the first annual reduction of = the SV images (SVA1) and consist of object catalogs, value added quantities= , and ancillary maps derived from the coadded SV images. The SVA1 GOLD Catalog prov= ides photometry and simple classification for objects detected in the SVA1 = coadd images. Ancillary maps describing the effective magnitude limit acros= s the SVA1 footprint are also provided. The SVA1 Shear Catalogs provide shape infor= mation for a high-quality subset of objects in the GOLD catalog as derived = by Jarvis et al= . (2015). The SVA1 Photo-z Catalogs prov= ide photometric redshift estimates for objects in the SVA1 GOLD catalog as = derived in Bonnett et al. (2015). Catalogs of galaxy clusters and red galax= ies in the SVA1 data set are provided by the SVA1 RedMaPPer and RedMaG= iC Catalogs as derived in Rykoff et al= . (2016) and Rozo et al. (2015)= a>.
If you use an SVA1 data product in a =
scientific publication, we ask that you cite the paper where the data product was derived and
The SVA1 data products d= o not constitute an official DES data release and are = provided on an "as is" basis in support of DES publications based on SVA1 data. T= he SVA1 data products possess several known issues (documented in more deta= il below) arising from features in the instrument, data reduction, cat= alog creation, and calibration processes that were present during this earl= y phase of data taking prior to normal operations of DES.
Support for the SVA1 data products is very limited. The primary sources = of documentation are the papers that derived these data products, and quest= ions can be addressed to the authors of those papers. Questions about the d= istribution of the data or the content of these wiki pages can be submitted= using the web form provided here. Questions an= d responses are tracked, and can be viewed here.
The full listing of downloadable files can be found here.
The data products are described in more detail on the pages linked above= and files are linked by topic below. Catalog files are distributed as= gzipped FITS binary tables. Anci= llary depth maps are provided as HEALPix formatted gzi= pped binary FITS tables.
Funding for the DES Projects has been provided by the DOE and NSF(USA), = MEC/MICINN/MINECO(Spain), STFC(UK), HEFCE(UK). NCSA(UIUC), KICP(U. Chicago)= , CCAPP(Ohio State), MIFPA(Texas A\&M), CNPQ, FAPERJ, FINEP (Brazil), D= FG(Germany) and the Collaborating Institutions in the Dark Energy Survey.= p>
The Collaborating Institutions are Argonne Lab, UC Santa Cruz, Universit= y of Cambridge, CIEMAT-Madrid, University of Chicago, University College Lo= ndon, DES-Brazil Consortium, University of Edinburgh, ETH Zurich, Fermilab,= University of Illinois, ICE (IEEC-CSIC), IFAE Barcelona, Lawrence Berkeley= Lab, LMU Munchen and the associated Excellence Cluster Universe, Universit= y of Michigan, NOAO, University of Nottingham, Ohio State University, Unive= rsity of Pennsylvania, University of Portsmouth, SLAC National Lab, Stanfor= d University, University of Sussex, and Texas A\&M University.
The DES Data Management System is supported by the NSF under Grant Numbe= r AST-1138766. The DES participants from Spanish institutions are partially= supported by MINECO under grants AYA2012-39559, ESP2013-48274, FPA2013-479= 86, and Centro de Excelencia Severo Ochoa SEV-2012-0234. Research leading t= o these results has received funding from the ERC under the EU's 7th Framew= ork Programme including grants ERC 240672, 291329 and 306478.
We are grateful for the extraordinary contributions of our CTIO colleagu= es and the DECam Construction, Commissioning and Science Verification teams= in achieving the excellent instrument and telescope conditions that have m= ade this work possible. The success of this project also relies critically = on the expertise and dedication of the DES Data Management group.
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T= he DES Data Management system is supported by the National Science Foundati= on under Grant Number (1138766).
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