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                            RELEASE NOTES FOR HEASOFT 6.30.1
                                    April 11, 2022
    ********************************************************************************
    
    The HEASoft 6.30.1 release is driven by updates needed for IXPE
    data analysis, but also includes updates to the Swift/UVOT software.
    
    Patches are available for users who wish to update their existing
    6.30 installation to 6.30.1.  Please see our download page for more
    information:
    
      https://heasarc.gsfc.nasa.gov/lheasoft/download.html
    
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                                        HEAGEN
    ********************************************************************************
    
    - barycorr: Fixed orbit file column numbering issue that causes
      the correction for IXPE to be in error by a random amount of
      about 1 msec.
    
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                                        HEASARC
    ********************************************************************************
    
    - extractor:
    
      Added new parameter 'stokes' which can be used to select between
      different weighting schemes when extracting spectrapolarimetric data.
      If stokes=NONE then do not extract Stokes parameter products, if NEFF
      or SIMPLE then use the weighting column defined by polwcol, and if
      UNWEIGHTED then do not use the weighting column. In this last case
      the I Stokes parameter product is the same as that if NONE had been
      chosen. NEFF is the Baldini et al. 2203.06385 weighting scheme
      and SIMPLE is that from Kislat et al. 1409.6214.
      The value of this parameter is written to the keyword STOKESWT
      in output files.
    
    ********************************************************************************
                                        XSELECT
    ********************************************************************************
    
    - Added new 'stokes' parameter to be used with the bin/extract
      command to pass down to the extractor 'stokes' parameter.
    
    ********************************************************************************
                                         IXPE
    ********************************************************************************
    
    - IXPE tools v2.9:
    
      * Updated to support remote CALDB access
    
      * ixpeweights: Updated W_MOM calculation
    
      * ixpedet2j2000.py:
    
        a. No longer requires header keyword "FILE_LVL" to have the value of "1".
    
        b. Now accepts multiple attitude files.
          i.  Requires all input attitude files to have the same values
              for "RA_OBJ" and "DEC_OBJ" keywords.
    
        c. Now calculates and outputs "Q" and "U" columns.
          i.  Now requires the input to contain "DETQ" and "DETU" columns.
          ii. Now requires the input to contain "ABSX" and "ABSY" columns.
    
      * ixpepolarization.py:
    
        a. Corrected a sign error in the display of the polarization vector.
    
        b. Added print output of the Q, U, polarization magnitude and angle
           for each region.
    
        c. Added similar output to region file for each region.
    
        d. Changed the scaling key line size and value to a simpler value.
    
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                                         SWIFT
    ********************************************************************************
    
    UVOT:
    
    - uvotlc: (v0.4) Simplified expfile/qualfile=NONE use, and fixed
      sexagesimal RA/Dec.
    
    - uvotsource: (v4.4) Changed output for bad SSS when forcephot/skipbad
      are used. Report quality+photometry flags to console.
    

    FTOOLS HELP DESK

    If FTOOLS has been useful in your research, please reference this site (http://heasarc.gsfc.nasa.gov/ftools) and use the ASCL reference for HEASoft [ascl:1408.004] or the ASCL reference for the original FTOOLs paper [ascl:9912.002]:

    Blackburn, J. K. 1995, in ASP Conf. Ser., Vol. 77, Astronomical Data Analysis Software and Systems IV, ed. R. A. Shaw, H. E. Payne, and J. J. E. Hayes (San Francisco: ASP), 367.

    Web page maintained by: Bryan K. Irby


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    Last modified: Monday, 11-Apr-2022 13:50:31 EDT