ChangeLog for attfilter
=======================

Version 1.4 - 2018-02-13 (EO)
-----------------------------
	+ This is a new major version of this package including a new GNU
	Public License Text disclaimer required to distribute the SAS source
	code to the Astronomical Community under the terms of the GNU Public
	License. The text as it is shown below is the same that has been 
	included in all SAS source code files.

	ESA (C) 2000-2018 

	This file is part of ESA's XMM-Newton Scientific Analysis System
	(SAS).

	SAS is free software: you can redistribute it and/or modify
	it under the terms of the GNU General Public License as published by
	the Free Software Foundation, either version 3 of the License, or
	(at your option) any later version.

	SAS is distributed in the hope that it will be useful,
	but WITHOUT ANY WARRANTY; without even the implied warranty of
	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
	GNU General Public License for more details.
	   
	You should have received a copy of the GNU General Public License
	along with SAS.  If not, see <http://www.gnu.org/licenses/>.
	---------------------------------------------------------------------


Version 1.3.3 - 2016-12-01 (AI)
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	+ (src/attfilter.cc) isnan extern macro removed. 
	
Version 1.3.2 - 2010-04-01 (AI)
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	+ (src/attfilter.cc) The data filter expression in "cut" method was created using 
	the "toString" to convert start and stop time to strings variables. This "toString" 
	method truncate the variable so we are losing time due to this conversion. We have 
	changed "toString" method by double+stringstream definition.

Version 1.3.1 - 2007-06-28 (AI)
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	+ (src/attfilter.cc) Work around for MacOSX (Panther). 
	  SOC-SPR-2719 closed
	
Version 1.3 - 2007-11-04 (CG)
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	+ new parameter "onlylastatt" - If set (not by default), only last 100 
	  exposure attitude points are taken for attitude reference by filtering
	  Implementation of SCR 226

Version 1.2.1 - 2007-04-04 (CG)
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	+ attfilter preventing attitude medians outside valid region
	  SOC-SPR-2705 fixed.
	
Version 1.2 - 2006-09-27 (AI)
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	+ attfilter now checks if the filtered dataset is not empty.
	  SOC-SPR-2694 fixed.
	
Version 1.1 - 2002-07-12 (UL)
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	+ now depends on package sas

Version 1.0 - 2002-06-07 (UL)
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	+ comments on draft task description incorporated

Version 0.2 - 2002-05-31 (UL)
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	+ parameter name change insexpid->instexpid to reconcile with other tasks
	+ added group 'filter' to info file
	+ fixed typos in doc

Version 0.1 - 2002-05-27 (UL)
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    + draft version of package; task description submitted for approval;
	  intended functionality implemented except for pyramid filter