<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2 Final//EN"> <!--Converted with LaTeX2HTML 98.1p1 release (March 2nd, 1998) originally by Nikos Drakos (nikos@cbl.leeds.ac.uk), CBLU, University of Leeds * revised and updated by: Marcus Hennecke, Ross Moore, Herb Swan * with significant contributions from: Jens Lippmann, Marek Rouchal, Martin Wilck and others --> <HTML> <HEAD> <TITLE>long</TITLE> <META NAME="description" CONTENT="long"> <META NAME="keywords" CONTENT="vol2"> <META NAME="resource-type" CONTENT="document"> <META NAME="distribution" CONTENT="global"> <META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=iso-8859-1"> <LINK REL="STYLESHEET" HREF="vol2.css"> <LINK REL="next" HREF="node407.html"> <LINK REL="previous" HREF="node405.html"> <LINK REL="up" HREF="node399.html"> <LINK REL="next" HREF="node407.html"> </HEAD> <BODY > <!--Navigation Panel--> <A NAME="tex2html6529" HREF="node407.html"> <IMG WIDTH="37" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="next" SRC="icons.gif/next_motif.gif"></A> <A NAME="tex2html6526" HREF="node399.html"> <IMG WIDTH="26" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="up" SRC="icons.gif/up_motif.gif"></A> <A NAME="tex2html6520" HREF="node405.html"> <IMG WIDTH="63" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="previous" SRC="icons.gif/previous_motif.gif"></A> <A NAME="tex2html6528" HREF="node1.html"> <IMG WIDTH="65" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="contents" SRC="icons.gif/contents_motif.gif"></A> <BR> <B> Next:</B> <A NAME="tex2html6530" HREF="node407.html">optopus</A> <B> Up:</B> <A NAME="tex2html6527" HREF="node399.html">Standard Reduction Commands</A> <B> Previous:</B> <A NAME="tex2html6521" HREF="node405.html">irspec</A> <BR> <BR> <!--End of Navigation Panel--> <H2><A NAME="SECTION002437000000000000000"> </A> <A NAME="long"> </A> <BR> long </H2> <BLOCKQUOTE> <TT><TT>APPLY/DISPERSION <I>in out [y] [coef] <BR> </I> </TT></TT>Apply the dispersion relation to a 1D <I>spectrum and generates a table <BR> </I> <TT>BATCH/LONG <BR> </TT>Prepare the Batch Reduction user interface <BR> <TT>CALIBRA/FLUX <I>in out [resp] <BR> </I> </TT>Correct an image for the instrumental response function <BR> <TT>CALIBRATE/LONG <I>[tol] [deg] [mtd] [guess] <BR> </I> </TT>Wavelength calibration of 1D <I>and long-slit spectra <BR> </I> <TT>CALIBRATE/TWICE <BR> </TT>Performs the wavelength calibration on a selected set of lines. <BR> <TT>CLEAN/LONG <BR> </TT>Clear context Long <BR> <TT>COMBINE/LONG <I>catalog output [mtd] <BR> </I> </TT>Average a catalog of images <BR> <TT>EDIT/FLUX <I>[resp] <BR> </I> </TT>Edit the instrumental response table <BR> <TT>ERASE/LONG <BR> </TT>Interactive rejection of dispersion relation nodes. <BR> <TT>ESTIMATE/DISPERSION <I>wdisp wcent [ystart] [line] [cat] <BR> </I> </TT>Estimate a linear approximation of the dispersion relation <BR> <TT>EXTINCTION/LONG <I>in out [scale] [table] [col] <BR> </I> </TT>correct spectra for interstellar or atmopsheric extinction <BR> <TT>EXTRACT/AVERAGE <I>in out [obj] [sky] [mtd] <BR> </I> </TT>extract a long-slit spectrum by averaging rows <BR> <TT>EXTRACT/LONG <I>in out [sky] [obj] [order,niter] [ron,g,sigma] <BR> </I> </TT>Optimal extraction of a long-slit spectrum <BR> <TT>GCOORD/LONG <I>[number] [outtab] <BR> </I> </TT>Get coordinates from the display window <BR> <TT>GRAPH/LONG <I>[size] [position] [id] <BR> </I> </TT>Creates a graphic window <BR> <TT>HELP/LONG <I>[keyword] <BR> </I> </TT>provides information about session keywords. <BR> <TT>IDENTIFY/LONG <I>[wlc] [ystart] [lintab] [tol] <BR> </I> </TT>Interactive calibration of lines in an arc spectrum <BR> <TT>INITIALIZE/LONG <I>[session] <BR> </I> </TT>Initialises parameters of context long <BR> <TT>INTEGRATE/LONG <I>std [flux] [resp] <BR> </I> </TT>Generates an intermediate response table from a standard star spectrum <BR> <TT>LINADD/LONG <I>in w,bin [y] [mtd] [mode] [line] <BR> </I> </TT>Adds entries to the table line.tbl <BR> <TT>LOAD/LONG <I>image [scale_x,[scale_y]] <BR> </I> <TT>MAKE/DISPLAY <BR> </TT></TT>Creates a display window <BR> <TT>NORMALIZE/FLAT <I>in out [bias] [deg] [fit] [visu] <BR> </I> </TT>Normalisation of flat-fields <BR> <TT>PLOT/CALIBRATE <I>[mode] <BR> </I> </TT>Plot wavelength calibration identifications. <BR> <TT>PLOT/DELTA <I>[mode] <BR> </I> </TT>Plot the fitted dispersion relation and allow interactive <BR> rejection of arc lines. <BR> <TT>PLOT/DISTORTION <I>wave [delta] [mode] <BR> </I> </TT>Plot the fitted position of arc lines in wavelength/y-coordinate space. <BR> <TT>PLOT/FLUX <I>[fluxtab] <BR> </I> </TT>Plot the flux table <BR> <TT>PLOT/IDENT <I>[wlc] [line] [x] [id] [wave] <BR> </I> </TT>Plot interactive identifications <BR> <TT>PLOT/RESIDUAL <I>[y] [table] <BR> </I> </TT>Plots residual after wavelength calibration <BR> <TT>PLOT/RESPONSE <I>[resp] <BR> </I> </TT>Plots the response correction function <BR> <TT>PLOT/SEARCH <I>[mode] [table] <BR> </I> </TT>Plot the results of SEARCH/LONG <BR> <TT>PLOT/SPECTRUM <I>table <BR> </I> </TT>Plots a 1D <I>spectrum in table format, as supplied by APPLY/DISPERSION <BR> </I> <TT>PREPARE/LONG <I>in [out] [limits] <BR> </I> </TT>Extracts sub-images from an image or a catalog. <BR> <TT>REBIN/LONG <I>in out [start,end,step] [mtd] [table] <BR> </I> </TT>Rebin a long-slit spectrum using the row-by-row method <BR> <TT>RECTIFY/LONG <I>in out [reference] [nrep] [deconvol_flag] [line] <BR> </I> </TT>rectify geometrically a distorted 2-D <I>spectrum <BR> </I> <TT>REDUCE/INIT <I>partab <BR> </I> </TT>Initialises the batch reduction parameters <BR> <TT>REDUCE/LONG <I>input <BR> </I> </TT>Batch reduction of long-slit spectra. <BR> <TT>REDUCE/SAVE <I>partab <BR> </I> </TT>Saves the batch reduction parameters <BR> <TT>RESPONSE/FILTER <I>std [flux] [resp] <BR> </I> </TT>Generate a response image by filtering based method. <BR> <TT>RESPONSE/LONG <I>[plot] [fit] [deg] [smo] [table] [image] [visu] <BR> </I> </TT>Converts the response correction from table to image format. <BR> <TT>SAVE/LONG <I>session <BR> </I> </TT>Saves session keywords <BR> <TT>SEARCH/LONG <I>[in] [thres] [width] [yaver] [step] [mtd] [mode] <BR> </I> </TT>search for spectral features in a long-slit spectrum <BR> <TT>SELECT/LINE <BR> </TT>Select lines identified in all rows of an arc spectrum. <BR> <TT>SET/LONG <I>key=value [...] <BR> </I> </TT>Assigns a value to long-slit session keywords <BR> <TT>SHOW/LONG <I>[section] <BR> </I> </TT>Displays values of session keywords. <BR> <TT>SKYFIT/LONG <I>input output [sky] [degree] [mode] [r,g,t] [radius] <BR> </I> </TT>fit polynomial to spatial flux distribution in windows of every column <BR> <TT>TUTORIAL/LONG <BR> </TT>demonstrate commands of the package Long <BR> <TT>VERIFY/LONG <I>file mode <BR> </I> </TT>Checks conformity of files in the long-slit context <BR> <TT>XIDENT/LONG <I>[wlc] [ystart] [lintab] [tol] <BR> </I> </TT>Invoke the identification graphical user interface <BR></BLOCKQUOTE><HR> <!--Navigation 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