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XMM-Newton Science Analysis System


evarimgen (evarimgen-0.7) [xmmsas_20070708_1801-7.1.0]

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Parameters

This section documents the parameters recognized by this task (if any).

Parameter	Mand	Type	Default	Constraints
evlistset	yes	dataset	`foo.bar'
The name of the event list.
xcolumn	no	string	X
Name of the column to supply image $x$ coordinate.
ycolumn	no	string	Y
Name of the column to supply image $y$ coordinate.
xrangetype	no	string	maxlegal	`maxlegal'/`maxactual'/`user'
This controls the cutoff points for $x$ values. If xrangetype is set to `maxlegal', the values of TLMINn and TLMAXn are used, where n is the number of the column whose name is given by the xcolumn parameter. A value of xrangetype=`maxactual' dictates that TDMINn and TDMAXn (the true minimum and maximum values of the column entries) should be used instead. If xrangetype=`user', the task looks for user-supplied minimum and maximum values in the parameters xmin and xmax. Events which have $x$ values outside the range are discarded.
yrangetype	no	string	maxlegal	`maxlegal'/`maxactual'/`user'
Similar to xrangetype, but for the $y$ coordinate.
imagebinning	no	string	numberofpixels	`numberofpixels'/`pixelsize'
Controls the way in which the number of $x$ and $y$ pixels are calculated. If imagebinning=`numberofpixels', the numbers of $x$ and $y$ pixels are entered directly via the parameters nxpixels and nypixels. On the other hand if imagebinning=`pixelsize', the user must enter the $x$ and $y$ dimensions of the pixel via the parameters xpixelsize and ypixelsize.
xmin	no	real	-3000.0
When xrangetype is set to `user', this parameter is expected.
xmax	no	real	3000.0
When xrangetype is set to `user', this parameter is expected.
ymin	no	real	-3000.0
When yrangetype is set to `user', this parameter is expected.
ymax	no	real	3000.0
When yrangetype is set to `user', this parameter is expected.
nxpixels	no	integer	600	$1<=nxpixels<=1000$
When imagebinning is set to `numberofpixels', this parameter is expected.
nypixels	no	integer	600	$1<=nypixels<=1000$
When imagebinning is set to `numberofpixels', this parameter is expected.
xpixelsize	no	real	1.0	$xpixelsize>0$
When imagebinning is set to `pixelsize', this parameter is expected.
ypixelsize	no	real	1.0	$ypixelsize>0$
When imagebinning is set to `pixelsize', this parameter is expected.
cutoff	no	integer	4	$cutoff>=0$
Pixels with fewer events than the value of cutoff are set to zero in the variability image.
withimageset	no	boolean	no
This is set if the total flux image should be read (using the name given in parameter imageset) rather than created. Note that, if withimageset=no, the total flux image is created within the task and saved to the name given in parameter imageset.
imageset	no	string	`outimage.ds'
Name of the total flux image. If withimageset=yes, the task attempts to read the total flux image from a file of this name. If withimageset=no, the task generates the total flux image internally and saves it to a file of this name.
varimageset	no	string	`outvarimage.ds'
The variability image is saved to a file of this name.
sortevlist	no	boolean	yes
The algorithm works best if the events are sorted in time. This parameter tells the task to do this sort. The task generates a warning if sortevlist=no and the events are out of time order.
Parameter	Mand	Type	Default	Constraints