XMM-Newton Science Analysis System


cifbuild (cifbuild-4.8) [xmmsas_20141104_1833-14.0.0]

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Algorithm

   if(not withmasterindexfile) {

     foreach(directory is SAS_CCFPATH or in ccfpath) {
       foreach(file matching glob pattern) {
         if(is_a_ccf_file) {
            extract CCF attributes
            add to list organized by scope-type
         }
       } 
       foreach(scope-type) {
         select constituent with:
             VALDATE <= observationdate
             SUBDATE <= analysisdate
             EVALDATE >= observationdate
             highest ISSUE
         write selected constituet to CIF            
     }
   } else { // use masterindexfile
     foreach(scope-type in MIF) {
       select constituent with:
           VALDATE <= observationdate
           SUBDATE <= analysisdate
           highest ISSUE
      }
   }