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Дата изменения: Fri Jan 10 22:33:48 2003
Дата индексирования: Sat Dec 22 08:16:00 2007
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Поисковые слова: arp 220

XMM-Newton Science Analysis System


slconv (slconv-1.1.2) [xmmsas_20030110_1802-5.4.1]

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Parameters

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

Parameter	Mand	Type	Default	Constraints
srclisttab	yes	table	srclist.ds:SRCLIST
The name of the FITS dataset+table which contains the input source list. If the colon + table name is not given, the first table in the dataset is used.
racolumn	no	string	RA
The name of the column from which to read the Right Ascensions of the sources.
deccolumn	no	string	DEC
The name of the column from which to read the Declinations of the sources.
radecunits	no	string	decldeg	decldeg|hdms|radians
The unit to employ when reading racolumn and deccolumn. NOTE that hdms (ie hh:mm:ss etc) is not yet supported.
expression	no	string
Source selection expression, possibly involving column names, keyword values or constants. See selectlib for the grammar. Only those sources for which the expression evaluates to TRUE are plotted. The default (an empty string) is TRUE for all sources.
withncut	no	boolean	no
Switch which specifies whether the source list (after filtering with expression) should be truncated at some maximum number, specified by parameter ncut.
ncutsortexpression	no	string	RATE
If a truncation of the size of the source list is desired (ie if withncut=yes), the list must first be sorted according to some criterion. The task evaluates ncutsortexpression and sorts the sources in decreasing order of the result. The parameter ncut is then read and only the first ncut sources (in their sorted order) are plotted.
ncut	no	integer	30	$0\le$ncut
Maximum number of sources to plot. This parameter has no effect when withncut=no.
radiusexpression	no	string	RATE
This parameter specifies an arithmetical expression, possibly involving column names, keyword values or constants. The result is used to scale the radii of the plotted circles.
radiusstyle	no	string	raw	auto|raw
The radii of the source circles are taken from the result of the expression supplied to parameter radiusexpression; but this result can either be used directly (radiusstyle=`raw', the default) or the value may be processed in an `intelligent' manner by the task (radiusstyle=`auto'). The `auto' routine attempts to choose the extrema and distribution of the circle radii so as to give a visually pleasing result.
labelsstyle	no	string	expr	sortedint|expr|none
This parameter controls how source labels are assigned. See the description of this parameter in subsection 3.5 but, briefly: if labelsstyle=`expr', the task uses the values generated by evaluation of the column expression supplied to labelexpression directly as label text; for labelsstyle=`sortedint', the labels are constrained to be a sequence of positive integers, assigned according to the setting of the parameter labelsortstyle; if labelsstyle = `none', no labelling is done.
labelsortstyle	no	string	radiusup	radius|expr|rownumber
This parameter controls how integer-sequence source labels are assigned - that is, it is read by the task only if labelsstyle=`sortedint'. See the description of this parameter in subsection 3.5 but, briefly: if labelsortstyle = `expr', the task evaluates labelsexpression and assigns the (integer-valued) labels in decreasing order of the result; if labelsortstyle = `radius', the integers increase with decreasing source circle radius; whereas if labelsortstyle = `rownumber', the sequence of integers merely reflects the row number of the source entry in the (filtered, not original) source list.
labelsexpression	no	string	ML_ID_SRC
This parameter is active under two slightly different conditions: If labelsstyle = `expr', the task uses the values generated by evaluation of the column expression supplied to labelexpression directly as label text. If labelsstyle = `sortedint' and labelsortstyle = `expr', the task evaluates labelsexpression and assigns the (integer-valued) labels in decreasing order of the result.
labelcolour	no	string	green
Colour of the plotted circle + label. Available colours are black|white|red|green|blue|cyan|purple|yellow.
outputstyle	no	string	ds9	ds9|gaia
This parameter controls the output format. At present only ds9 or gaia formats are available. Note that this parameter is not case-sensitive.
extragaiacolumns	no	string list	RADEC_ERR RATE
This contains a list of extra column names to be copied to the gaia output file. It is of course only read if outputstyle=`gaia'.
outfileprefix	no	string	region
Prefix of the output file name. This is followed by a period and the suffix `reg' or `gaia' for outputstyle=`ds9' or `gaia' respectively.
Parameter	Mand	Type	Default	Constraints