Differences

This shows you the differences between two versions of the page.

Link to this comparison view

Next revision
Previous revision
start [2016/07/26 13:19]
127.0.0.1 external edit
start [2019/01/15 13:29] (current)
Déborah Paradis
Line 1: Line 1:
 ====== Home ====== ====== Home ======
  
-Welcome to the "​**Centre d'​Analyse de Données Etendues**"​ (CADE) or "//​Analysis Center for Extended Data//"​. CADE provides maps of ancillary astronomical data to the users of the astronomical community. The emphasis of CADE is on the extended sky emission. The database is provided in the [[http://​healpix.jpl.nasa.gov|HEALPix]] sky pixelization scheme.+Welcome to the "​**Centre d'​Analyse de Données Etendues**"​ (CADE) or "//​Analysis Center for Extended Data//"​. CADE provides maps of ancillary astronomical data to users in the astronomical community. The emphasis of CADE is on extended sky emission. The database is provided in the [[http://​healpix.jpl.nasa.gov|HEALPix]] sky pixelization scheme.
  
-An increasing number of large survey projects ​uses an unique hierarchical pixelization of the celestial sphere called [[http://​healpix.jpl.nasa.gov|HEALPix]]. +An increasing number of large survey projects ​use a unique hierarchical pixelization of the celestial sphere called [[http://​healpix.jpl.nasa.gov|HEALPix]]. 
-strategy of ancillary data ingestion in the HEALPix format ​is usedwhich allows to generate ​partial or all-sky HEALPix files from the more traditional local representation traditionally used for astronomical data. The ingestion tool is based on the drizzling library, and uses a strategy where the surface of pixel intersection is computed as presented in Appendix A in Paradis et al., 2012, A&A, 543, 103. The method allows fast ingestion and guarantees the photometric accuracy of the transformation with minimal data loss during the transformation from local FITS maps in the WCS (World Coordinate System) system ​to HEALPix.+CADE pursues a strategy of ancillary data ingestion in the HEALPix format, ​generating ​partial or all-sky HEALPix files from astronomical data that is represented using the more traditional local World Coordinate System (WCS) FITS format. The ingestion tool is based on the drizzling library, and uses a strategy where the surface of pixel intersection is computed as presented in Appendix A of Paradis et al., 2012, A&A, 543, 103. This method allows fast ingestion and guarantees the photometric accuracy of the transformation with minimal data loss during the transformation from local WCS FITS map to HEALPix.
  
-**CADE ​ensures the data production in the HEALPix ​maps, data archiving and diffusion to the community.**+**CADE ​provides astronomical ​data production in the HEALPix ​format, data archiving and diffusion to the community.**
  
 ==== The service delivers ==== ==== The service delivers ====
  
-  * A set of extended ​data maps in the HEALPix format for various ​astronomical large-scale surveys.+  * Extended, multi-wavelength ​data from astronomical large-scale surveys ​in the HEALPix format. 
 +  * Uncertainty and/or hit count maps, when available
   * Meta-data that facilitates automated data analysis.   * Meta-data that facilitates automated data analysis.
-  * Non-publicly available surveysused by some projects ​(including Planck, Herschel). +  * Non-public survey data sets for internal project use (including Planck, Herschel). Please contact us if you would like CADE to host password-protected data for your project
-  * VO compatible data, accessible through the Aladin software (http://​aladin.u-strasbg.fr/​). +  * VO-compatible data, accessible through the Aladin software (http://​aladin.u-strasbg.fr/​). 
-  * The drizzling library ​allowing for data projection ​from HEALPix to local WCSavailable here : http://​cade.irap.omp.eu/​dokuwiki/​doku.php?​id=software \\+  * The drizzling ​software ​library, which reprojects ​data from HEALPix to local WCS and is available here : http://​cade.irap.omp.eu/​dokuwiki/​doku.php?​id=software \\ 
 +  * **NEW** A Web interface of the Drizzlib (DrizzWeb) http://​drizzweb.irap.omp.eu/ ​
  
  
 ==== Future developments ==== ==== Future developments ====
  
-  * Uncertainty and/or hit count maps will be associated to the data+  * HEALPix files will be provided at different resolutions ​
   * Additional meta-data will be included in the header of the files   * Additional meta-data will be included in the header of the files
   * Tool: SED extractor, compatible with the [[http://​dustemwrap.irap.omp.eu|DustEM software]]   * Tool: SED extractor, compatible with the [[http://​dustemwrap.irap.omp.eu|DustEM software]]
Line 28: Line 30:
 If you have any questions or comments, please contact : If you have any questions or comments, please contact :
   * Déborah Paradis : [[deborah.paradis@irap.omp.eu|deborah.paradis@irap.omp.eu]]   * Déborah Paradis : [[deborah.paradis@irap.omp.eu|deborah.paradis@irap.omp.eu]]
-  * Jean-Philippe Bernard: [[jean-philippe.bernard@irap.omp.eu|jean-philippe.bernard@irap.omp.eu]]+  ​* Annie Hughes: [[annie.hughes@irap.omp.eu|annie.hughes@irap.omp.eu]] 
 +  ​* Jean-Michel Glorian: [[jean-michel.glorian@irap.omp.eu|jean-michel.glorian@irap.omp.eu]]
  
-//We thank Pierre Fernique, Laurent Cambrésy, Caroline Bot, Thomas Boch, Jean-Michel Glorian and Antoine Goutenoir for their help.//+//We thank Pierre Fernique, Laurent Cambrésy, Caroline Bot, Thomas Boch, Antoine Goutenoir ​and Gabriel Foënard ​for their help.//