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                       RELEASE NOTES FOR HEASOFT 6.1.1
                              September 12, 2006
                                      &
                                Swift XRT patch
                              September 21, 2006
******************************************************************************

The HEASoft 6.1.1 release is primarily driven by the release of the Suzaku
software version 1.2.

As for previous HEASOFT releases, configuration-related changes throughout
the package means that users who already have HEASoft v6.X installed will
need to completely replace their software installation; there is no clean
way to simply overlay this new release or to update an existing installation.

A patch for the Swift XRT software was included on 21 September 2006.

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                                   HEASARC
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rbnpha:

 - Fixed uninitialized variable which caused memory errors.

xselect

 - Update the Suzaku default for GTI in xselect.mdb

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                                   SUZAKU
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Suzaku software v 1.2. Includes new tasks, changes and bug fixes :

----------------------
General  tools
----------------------
aeaspect :
  - Add new parameters, 'date_obs' and 'date_end', to specify the start/end
    of the observation in the calculation of the mean satellite Euler angles.
  - Add new parameter 'update_date' to propagate DATE_OBS/END keywords.
  - Support CALDB for 'leapfile', '*_teldef' parameters.

aebarycen :
  - New task. Apply Barycenter correction for Suzaku EVENT and/or HK files.

aecoordcalc :
  - Support CALDB for 'leapfile', '*_teldef' parameters.

aemkehk :
  - Support CALDB for 'leapfile', 'teldef' parameters.

aemkreg :
  - New task. Generate a ds9 format region file for given satellite
    Euler angles.  Rough XIS and HXD field of views are drawn by default.

aetimecalc :
  - Support CALDB for 'leapfile' parameter.

----------------------
HXD specific tools
----------------------

hxdmkgainhist :
  - Change. The dummy_256ch.rsp is not longer used in fittings
  - Add parameters for fittings the GSO data
  - Add flag to delete or not temporary files 
  - Change in the perl script hxdmkgainhist_gso
  - Change. Implement dynamic memory.
 
hxdgtigen :
  - New task, Provides GTI to avoid telemetry saturation

hxddtcor :
  - New task, Perform dead time correction to PHA file(s)

hxdmkbstlc :
  - New task, Make light curve(s) of HXD-BURST event.

hxdmkwamlc :
  - New task, Make light curve(s) of HXD-WAM event.

hxdmkwamspec :
  - New task, Make spectra of HXD-WAM event.

hxdtime :
  - Change. Implement dynamic memory

hxdpi :
  - Include current calibration of energy scale of GSO and PIN
  - Set null value in PI_PIN for PIN Upper discriminated events 
  - Change function in reading gain history files
  - Bug fix. Values in the PI_SLOW and PI_FAST previously set to 
    'INDEF' are now set to 0.0.
  - Change. Implement dynamic memory.

hxdscltime:
  - Portability related changes.

hxdmkwamgainhist : 
  - Change the output file format  

hxdgrade :
  - Change criteria of the multiplicity of GRADE
  - Parameterize the criteria of PSD selection
  - Change. Implement dynamic memory.

hxdbsttime :
  - Delete minor warnings
  - Bug fixed in reading leapsec FITS

hxdarfgen : 
  - Bug fix in the parameter query.

---

*** NOTE:

  - hxdmkgainhist and hxdmkwamlc are not currently supported for
    OSF/Alpha platform.

  - hxdmkwamlc has a known bug on Solaris platforms, e.g. some of the
    rates are incorrect.

----------------------
XIS specific tools
----------------------

xisputpixelquality :
  - Bug fix in calculation of the 'STATUS' column of event files.
    Some pixels had been incorrectly calculated as
    e.g. STATUS=65536+16+16=65568, which is now 65536+16=65552.

xisucode :
  - Updates. Calculate the appropriate value for header keyword TIMEDEL.

xistime :
  - Fix bugs on the time calculation of the EXPTIME and TIME column.    
    However, the absolute timing is still not calibrated well.
    Note : For burst mode, the GTI do not account for the dead time 

xispi : 
   - Portability-related changes.

xiscoord : 
   - Portability-related changes.

xissimarfgen :
  - New task. Calculate the ARF by the XRT ray-tracing simulation.

xissim :
  - New task. Generate a simulated XIS event file for input photon file(s)
    made by the mkphlist task, by the XRT ray-tracing and the XIS RMF.

xiscontamicalc :
  - New task. Calculate the carbon column density and transmission of
    the XIS OBF contaminant at specified time, detector position, and energy.

Note: The XIS software have been changed to use 'GTI' as name for the good 
time intervals rather than 'STDGTI'.

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                                   SWIFT
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----------------------
XRT specific tools
----------------------

xrthkproc :
  - skip duplicate records in the header file that occur when the Bias
    map is dumped before the daily check-out.