XMM-Newton Science Analysis System


rgssuperrmf (rgssuperrmf-1.2) [xmmsas_20141104_1833-14.0.0]

Meta Index / Home Page

Algorithm

ASSESS QUALITY: To apply information per channel 

FOR EACH spectrum file: 

  totalexposure = totalexposure + EXPOSURE

IF withspeccombine
  FOR EACH spectrum channel:
    IF ( acceptable QUALITY )
      channelexp =  EXPOSURE * AREASCAL
      OR IF SPECTRUM == NET
         staterrquad = squared(STAT_ERR) 
      backscalexp = EXPOSURE * BACKSCAL
      totalcounts = totalcounts + COUNTS
      Then: 
      Accumulate counts, backscalexp and channelexp or staterrquad 
    ELSE
      do not add counts

  Call rgsrmfgen, creating temporary response onto which the channel quality criterion 
  is applied 

  FOR EACH response bin (rows):
    FOR EACH response channel (columns) AND IF ( acceptable QUALITY for channel):
      IF ( corresponding spectrum channel not discarded )
        newresponse = newresponse + MATRIX * EXPOSURE * AREASCAL
      

FOR EACH spectrum channel:      
  IF (all quality flag 1 over all spectra files)
    Set final quality flag to 1
  IF (all quality flag 2 over all spectra files)
    Set final quality flag to 2
  ELSE 
     Set final quality flag to 0

IF spectrum == TOTAL 
Finalareascal = channelexp / totalexposure
ELSE 
Finalstaterr = square-root(staterrquad)

Finalbackscal = backscalexp / totalexposure
Finalresponse = newresponse / Finalareascal

Write to file 
Add attributes for DATE-OBS, DATE-END, applicable to observation list