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en:news:urat1_catalog [2015/04/24 09:30] – [Build a local catalog for Skychart] pchen:news:urat1_catalog [2015/11/06 20:43] (current) – external edit 127.0.0.1
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 significant improvement in positional precision as compared to UCAC. significant improvement in positional precision as compared to UCAC.
  
-{{ :en:screenshot:x010_m13_urat1.png?350|}}+{{ :en:screenshot:x010_m13_urat1.jpg?350|M13 with URAT1 catalog}}
  
   * Observational catalog, i.e. mean positions of stars at mean epoch of URAT observing (between 2012.3 and 2014.6), on the International Celestial Reference System (ICRS).   * Observational catalog, i.e. mean positions of stars at mean epoch of URAT observing (between 2012.3 and 2014.6), on the International Celestial Reference System (ICRS).
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 You can show the URAT1 catalog data for a specific area in Skychart without downloading the full catalog by using the [[en:documentation:catalog#vo_catalog|Virtual Observatory interface]]. You can show the URAT1 catalog data for a specific area in Skychart without downloading the full catalog by using the [[en:documentation:catalog#vo_catalog|Virtual Observatory interface]].
  
-Start by zooming to a small sky area of the northern hemisphere, about 30 arcmin width, choice preferably Equatorial coordinates.\\+Start by zooming to a small sky area of the northern hemisphere, about 30 arcmin width, use preferably Equatorial coordinates.\\
 Be sure the button "Show Virtual Observatory data" is checked.{{:en:news:vo_urat0.png|}}\\ Be sure the button "Show Virtual Observatory data" is checked.{{:en:news:vo_urat0.png|}}\\
 Open the menu Setup -> Catalog -> VO Catalog, click the Add button. Open the menu Setup -> Catalog -> VO Catalog, click the Add button.
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   cd URAT1   cd URAT1
   wget --mirror ftp://cdsarc.u-strasbg.fr/pub/cats/I/329/URAT1/   wget --mirror ftp://cdsarc.u-strasbg.fr/pub/cats/I/329/URAT1/
 +  mv cdsarc.u-strasbg.fr/pub/cats/I/329/URAT1/* .
 +  cd ..
  
 In the "access" directory compile the v1dump program. You need a Fortran compiler, for example gfortran, available in every Linux distribution or on Windows with [[https://www.cygwin.com/|Cygwin]] or [[http://www.mingw.org/|Mingw]].\\ In the "access" directory compile the v1dump program. You need a Fortran compiler, for example gfortran, available in every Linux distribution or on Windows with [[https://www.cygwin.com/|Cygwin]] or [[http://www.mingw.org/|Mingw]].\\
-For convenience for Windows users you can also download a [[http://www.ap-i.net/pub/skychart/urat/v1dump.zip|precompiled v1dump.exe]]+
   cd URAT1/access   cd URAT1/access
   gfortran -o v1dump v1dump.f v1sub.f   gfortran -o v1dump v1dump.f v1sub.f
 +  cd ../..
      
 +For convenience for Windows users you can also download a [[http://www.ap-i.net/pub/skychart/urat/v1dump.zip|precompiled v1dump.exe]]
      
-Run v1dump to extract the data from the binary files to a new "asc" directory.+Run v1dump to extract the data from the binary files to a new "asc" directory. Response to prompt are in bold.
   cd URAT1   cd URAT1
   mkdir asc   mkdir asc
   cd access   cd access
   ./v1dump   ./v1dump
 +
   dump URAT binary data to ASCII   dump URAT binary data to ASCII
   hit "enter" to accept defaults or enter new values   hit "enter" to accept defaults or enter new values
-  path input = /d01/urat/v12/                          ../v12/+  path input = /d01/urat/v12/  
 +**../v12/**
   binary data are stored in LINUX-style sequence   binary data are stored in LINUX-style sequence
   some computers (PC-style) need a byteflip   some computers (PC-style) need a byteflip
-  byte flip (Y/N) ?  N  N +  byte flip (Y/N) ?  N   
-  path output= ./                                      ../asc/ +**N** 
-  first, last zone (326..900) to handle now =  326 327  326 900+  path output= ./                                       
 +**../asc/** 
 +  first, last zone (326..900) to handle now =  326 327   
 +**326 900**
   enter column separator character (default = blank)    enter column separator character (default = blank) 
        
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   ...   ...
   ... output to   = ../asc/z900.asc    ... output to   = ../asc/z900.asc 
 +  
 +  cd ..
          
 Download the example project file for Skychart Catgen from http://www.ap-i.net/pub/skychart/urat/urat1.prj.zip Download the example project file for Skychart Catgen from http://www.ap-i.net/pub/skychart/urat/urat1.prj.zip
en/news/urat1_catalog.1429860643.txt.gz · Last modified: 2015/11/06 20:35 (external edit)