<!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>On-line reduction options during the night</TITLE> <META NAME="description" CONTENT="On-line reduction options during the night"> <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="previous" HREF="node709.html"> <LINK REL="up" HREF="node708.html"> <LINK REL="next" HREF="node711.html"> </HEAD> <BODY > <!--Navigation Panel--> <A NAME="tex2html10350" HREF="node711.html"> <IMG WIDTH="37" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="next" SRC="icons.gif/next_motif.gif"></A> <A NAME="tex2html10347" HREF="node708.html"> <IMG WIDTH="26" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="up" SRC="icons.gif/up_motif.gif"></A> <A NAME="tex2html10343" HREF="node709.html"> <IMG WIDTH="63" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="previous" SRC="icons.gif/previous_motif.gif"></A> <A NAME="tex2html10349" 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="tex2html10351" HREF="node711.html">About this document ...</A> <B> Up:</B> <A NAME="tex2html10348" HREF="node708.html">Using the FEROS software</A> <B> Previous:</B> <A NAME="tex2html10344" HREF="node709.html">Initialization of the DRS</A> <BR> <BR> <!--End of Navigation Panel--> <H2><A NAME="SECTION0037122000000000000000"> On-line reduction options during the night</A> </H2> <P> <TT>The context keywords allow to control the parameters of the reduction process. The keywords can be listed together with their current contents by the command SHOW/FEROS and are set with the command SET/FEROS key=[value]. </TT> <P> <TT>If the keywords are set to new values, they will only affect the automatic on-line DRS for next incoming files. If one of the files already transfered to the IWS (<TT>fero[filenum].mt</TT> should be reduced again according to the new settings of the keywords, this is easily achieved by re-starting the <TT>@@ autoreduce</TT> command manually as follows: </TT> <P> <TT><TT> @@ autoreduce fero [filenum]</TT> </TT> <P> <TT>Useful keywords for the observing session might be: </TT> <P><UL> <LI>EXT_MODE controls the method used for the extraction of the spectra. The three options are: <UL> <LI> SET/FEROS EXT_MODE=S the standard extraction is performed where the flux across the slit is just summed. <LI>SET/FEROS EXT_MODE=M the standard extraction is performed as above but with clipping of cosmics <LI>SET/FEROS EXT_MODE=O the optimum extraction is performed with clipping of cosmics </UL> <P> <LI> MERGE_MTD controls the merging of the orders. The options are: <UL> <LI> SET/FEROS MERGE_MTD=SINC the default merging into a 1-D spectrum with weighted adding of overlapping regions. The lengths of the orders are determined from table <TT>BLAZE.tbl</TT> <LI> SET/FEROS MERGE_MTD=AVE should not be used <LI>SET/FEROS MERGE_MTD=NOAPP the orders are not merged but written into individual 1D spectra; the order number is appended to the filename as 4-digit number. </UL> <LI> REBIN_MTD controls the rebinning of the spectra. The options are: <UL> <LI>SET/FEROS REBIN_SCL=I the rebinning is done into a lInear wavelength scale. The stepsize has to be set in the keyword REBIN_STEP. <LI>SET/FEROS REBIN_SCL=O the rebinning is done into a lOgartithnic wavelength scale. The stepsize has to be set in the keyword REBIN_STEP. </UL> <P> </UL> <P> <BR> <DIV ALIGN="CENTER"> <A NAME="36167"> </A> <TABLE CELLPADDING=3 BORDER="1"> <CAPTION><STRONG>Table M.1:</STRONG> Overview of FEROS commands</CAPTION> <TR><TD ALIGN="LEFT">Command</TD> <TD ALIGN="LEFT">parameters</TD> </TR> <TR><TD ALIGN="LEFT">INITIALIZE/FEROS</TD> <TD ALIGN="LEFT">name</TD> </TR> <TR><TD ALIGN="LEFT">SAVE/FEROS</TD> <TD ALIGN="LEFT">name</TD> </TR> <TR><TD ALIGN="LEFT">SHOW/FEROS</TD> <TD ALIGN="LEFT">param</TD> </TR> <TR><TD ALIGN="LEFT">SET/FEROS</TD> <TD ALIGN="LEFT">param=value</TD> </TR> <TR><TD ALIGN="LEFT">SAVINIT/FEROS</TD> <TD ALIGN="LEFT">filename accessmode</TD> </TR> <TR><TD ALIGN="LEFT">HELP/FEROS</TD> <TD ALIGN="LEFT">param</TD> </TR> <TR><TD ALIGN="LEFT">KEYDEL/FEROS</TD> <TD ALIGN="LEFT"> </TD> </TR> <TR><TD ALIGN="LEFT">DEFINE/FEROS</TD> <TD ALIGN="LEFT">inimage intable outtable locval thres locpar</TD> </TR> <TR><TD ALIGN="LEFT">BACKGR/FEROS</TD> <TD ALIGN="LEFT">raw flat centab bgmode bgparam medparam fibmode</TD> </TR> <TR><TD ALIGN="LEFT">RECTIFY/FEROS</TD> <TD ALIGN="LEFT">image straightimage centab profilepar</TD> </TR> <TR><TD ALIGN="LEFT">EXTRACT/FEROS</TD> <TD ALIGN="LEFT">straightimage extimage extpar params ccdpar coptab</TD> </TR> <TR><TD ALIGN="LEFT">FLAT/FEROS</TD> <TD ALIGN="LEFT">inspec flatspec outspec</TD> </TR> <TR><TD ALIGN="LEFT">SEARCH/FEROS</TD> <TD ALIGN="LEFT">spec linepar linepos meth linetype</TD> </TR> <TR><TD ALIGN="LEFT">CALIBRATE/FEROS</TD> <TD ALIGN="LEFT">linetab reftab instpar coefftab centertab getcoeffs</TD> </TR> <TR><TD ALIGN="LEFT">REBIN/FEROS</TD> <TD ALIGN="LEFT">extimage linetab rebimage scale step meth</TD> </TR> <TR><TD ALIGN="LEFT">MERGE/FEROS</TD> <TD ALIGN="LEFT">inimage outimage params method</TD> </TR> <TR><TD ALIGN="LEFT">TUTORIAL/FEROS</TD> <TD ALIGN="LEFT"> </TD> </TR> </TABLE> </DIV> <BR> <P> <BR> <DIV ALIGN="CENTER"><A NAME="36173"> </A> <TABLE CELLPADDING=3 BORDER="1"> <CAPTION><STRONG>Table M.2:</STRONG> List of FEROS keywords</CAPTION> <TR><TD ALIGN="LEFT">Keyword</TD> <TD ALIGN="LEFT">default value</TD> <TD ALIGN="LEFT">description</TD> </TR> <TR><TD ALIGN="LEFT">RAW_IMG/C/1/80</TD> <TD ALIGN="LEFT">flat2d</TD> <TD ALIGN="LEFT">name of raw image</TD> </TR> <TR><TD ALIGN="LEFT">WLC_IMG/C/1/80</TD> <TD ALIGN="LEFT">wlc2d</TD> <TD ALIGN="LEFT">name of wlc image</TD> </TR> <TR><TD ALIGN="LEFT">GUESS_TBL/C/1/80</TD> <TD ALIGN="LEFT">echpos</TD> <TD ALIGN="LEFT">name of guess table</TD> </TR> <TR><TD ALIGN="LEFT">CENTER_TBL/C/1/80</TD> <TD ALIGN="LEFT">centers</TD> <TD ALIGN="LEFT">name of order position table</TD> </TR> <TR><TD ALIGN="LEFT">LOC_CUTSTEP/I/1/1</TD> <TD ALIGN="LEFT">10</TD> <TD ALIGN="LEFT">cut step for order definition</TD> </TR> <TR><TD ALIGN="LEFT">LOC_WINDOW/I/1/1</TD> <TD ALIGN="LEFT">17</TD> <TD ALIGN="LEFT">window size for order definition</TD> </TR> <TR><TD ALIGN="LEFT">FIT_DEG/I/1/1</TD> <TD ALIGN="LEFT">5</TD> <TD ALIGN="LEFT">order polynomial fit degree</TD> </TR> <TR><TD ALIGN="LEFT">LOC_THRES/R/1/1</TD> <TD ALIGN="LEFT">0.9</TD> <TD ALIGN="LEFT">background level in order definition</TD> </TR> <TR><TD ALIGN="LEFT">LOC_MODE/C/1/1</TD> <TD ALIGN="LEFT">G</TD> <TD ALIGN="LEFT">definition mode; valid values: S,G</TD> </TR> <TR><TD ALIGN="LEFT">LOC_METHOD/C/1/1</TD> <TD ALIGN="LEFT">R</TD> <TD ALIGN="LEFT">definition method; valid values: R,A</TD> </TR> <TR><TD ALIGN="LEFT">CUTS_IMG/C/1/80</TD> <TD ALIGN="LEFT">cuts</TD> <TD ALIGN="LEFT">cuts image</TD> </TR> <TR><TD ALIGN="LEFT">FOLD_IMG/C/1/80</TD> <TD ALIGN="LEFT">fold</TD> <TD ALIGN="LEFT">fold image</TD> </TR> <TR><TD ALIGN="LEFT">TEMPL_IMG/C/1/80</TD> <TD ALIGN="LEFT">template</TD> <TD ALIGN="LEFT">input template image</TD> </TR> <TR><TD ALIGN="LEFT">TEMPLT_IMG/C/1/80</TD> <TD ALIGN="LEFT">templatet</TD> <TD ALIGN="LEFT">output template image</TD> </TR> <TR><TD ALIGN="LEFT">FIT_IMG/C/1/80</TD> <TD ALIGN="LEFT">fitted_img</TD> <TD ALIGN="LEFT">root name if fitted profiles image</TD> </TR> <TR><TD ALIGN="LEFT">MASK_IMG/C/1/80</TD> <TD ALIGN="LEFT">mask_img</TD> <TD ALIGN="LEFT">root name of masked pixels image</TD> </TR> <TR><TD ALIGN="LEFT">INIT_TBL/C/1/80</TD> <TD ALIGN="LEFT">init</TD> <TD ALIGN="LEFT">init table</TD> </TR> <TR><TD ALIGN="LEFT">FLAT_IMG/C/1/80</TD> <TD ALIGN="LEFT">nobg2d</TD> <TD ALIGN="LEFT">name of flatfielded image</TD> </TR> <TR><TD ALIGN="LEFT">FLATEXT_IMG/C/1/80</TD> <TD ALIGN="LEFT">flatxtrctd</TD> <TD ALIGN="LEFT">name of extracted flatfield image</TD> </TR> <TR><TD ALIGN="LEFT">UNBLAZED_IMG/C/1/80</TD> <TD ALIGN="LEFT">unblazed</TD> <TD ALIGN="LEFT">name of unblazed image</TD> </TR> <TR><TD ALIGN="LEFT">BG_MODE/C/1/1</TD> <TD ALIGN="LEFT">B</TD> <TD ALIGN="LEFT">background determination mode; valid values: B,N,S</TD> </TR> <TR><TD ALIGN="LEFT">BG_STEPX/I/1/1</TD> <TD ALIGN="LEFT">51</TD> <TD ALIGN="LEFT">step in x for background determination</TD> </TR> <TR><TD ALIGN="LEFT">BG_STEPY/I/1/1</TD> <TD ALIGN="LEFT">51</TD> <TD ALIGN="LEFT">step in y for background determination</TD> </TR> <TR><TD ALIGN="LEFT">BG_WIDTHX/I/1/1</TD> <TD ALIGN="LEFT">21</TD> <TD ALIGN="LEFT">width in x for background determination</TD> </TR> <TR><TD ALIGN="LEFT">BG_WIDTHY/I/1/1</TD> <TD ALIGN="LEFT">45</TD> <TD ALIGN="LEFT">width in y for background determination</TD> </TR> <TR><TD ALIGN="LEFT">BG_MEDIANX/I/1/1</TD> <TD ALIGN="LEFT">4</TD> <TD ALIGN="LEFT">median filter size in x</TD> </TR> <TR><TD ALIGN="LEFT">BG_MEDIANY/I/1/1</TD> <TD ALIGN="LEFT">11</TD> <TD ALIGN="LEFT">median filter size in y</TD> </TR> <TR><TD ALIGN="LEFT">BG_DIST/I/1/1</TD> <TD ALIGN="LEFT">50</TD> <TD ALIGN="LEFT">minimum distance between orders</TD> </TR> <TR><TD ALIGN="LEFT">STRAIGHT_IMG/C/1/80</TD> <TD ALIGN="LEFT">straightened</TD> <TD ALIGN="LEFT">root name of straightened image</TD> </TR> <TR><TD ALIGN="LEFT">PROFILE_W/I/1/1</TD> <TD ALIGN="LEFT">15</TD> <TD ALIGN="LEFT">width of spatial profile</TD> </TR> <TR><TD ALIGN="LEFT">FIBER_OFF1/I/1/1</TD> <TD ALIGN="LEFT">-9</TD> <TD ALIGN="LEFT">shift of fiber 1</TD> </TR> <TR><TD ALIGN="LEFT">FIBER_OFF2/I/1/1</TD> <TD ALIGN="LEFT">9</TD> <TD ALIGN="LEFT">shift of fiber 2</TD> </TR> <TR><TD ALIGN="LEFT">FIBER_MODE/I/1/1</TD> <TD ALIGN="LEFT">2</TD> <TD ALIGN="LEFT">number of fibers</TD> </TR> <TR><TD ALIGN="LEFT">IMG_WRITE/C/1/1</TD> <TD ALIGN="LEFT">N</TD> <TD ALIGN="LEFT">write additional images</TD> </TR> <TR><TD ALIGN="LEFT">EXT_IMG/C/1/80</TD> <TD ALIGN="LEFT">extracted</TD> <TD ALIGN="LEFT">root name of extracted image</TD> </TR> </TABLE> </DIV> <BR> <P> <BR> <DIV ALIGN="CENTER"><A NAME="36179"> </A> <TABLE CELLPADDING=3 BORDER="1"> <CAPTION><STRONG>Table M.3:</STRONG> List of FEROS keywords (continued)</CAPTION> <TR><TD ALIGN="LEFT">Keyword</TD> <TD ALIGN="LEFT">default value</TD> <TD ALIGN="LEFT">description</TD> </TR> <TR><TD ALIGN="LEFT">SPECTR_TYPE/C/1/1</TD> <TD ALIGN="LEFT">G</TD> <TD ALIGN="LEFT">spectrograph type; valid values: F,G</TD> </TR> <TR><TD ALIGN="LEFT">EXT_MODE/C/1/1</TD> <TD ALIGN="LEFT">S</TD> <TD ALIGN="LEFT">extraction mode; valid values: S,O,M</TD> </TR> <TR><TD ALIGN="LEFT">PROFILE_GET/C/1/1</TD> <TD ALIGN="LEFT">N</TD> <TD ALIGN="LEFT">get spatial profile from spectrum; valid Y,N</TD> </TR> <TR><TD ALIGN="LEFT">EXT_ITER/I/1/1</TD> <TD ALIGN="LEFT">3</TD> <TD ALIGN="LEFT">maximum iterations in optimum extraction</TD> </TR> <TR><TD ALIGN="LEFT">CCD_RON/R/1/1</TD> <TD ALIGN="LEFT">3.5</TD> <TD ALIGN="LEFT">readout noise of CCD (optimum extraction)</TD> </TR> <TR><TD ALIGN="LEFT">CCD_GAIN/R/1/1</TD> <TD ALIGN="LEFT">0.66</TD> <TD ALIGN="LEFT">gain of CCD (optimum extraction)</TD> </TR> <TR><TD ALIGN="LEFT">CCD_THRES/R/1/1</TD> <TD ALIGN="LEFT">4.0</TD> <TD ALIGN="LEFT">clipping threshold (optimum extraction)</TD> </TR> <TR><TD ALIGN="LEFT">CCD_ROT/R/1/1</TD> <TD ALIGN="LEFT">2.4</TD> <TD ALIGN="LEFT">rotation of CCD</TD> </TR> <TR><TD ALIGN="LEFT">CCD_SHIFT/R/1/1</TD> <TD ALIGN="LEFT">0.0</TD> <TD ALIGN="LEFT">shift of CCD in x direction</TD> </TR> <TR><TD ALIGN="LEFT">COEF_COP/C/1/80</TD> <TD ALIGN="LEFT">cop_coeff</TD> <TD ALIGN="LEFT">root name of cross order profile coefficient table</TD> </TR> <TR><TD ALIGN="LEFT">COEF_WLC/C/1/80</TD> <TD ALIGN="LEFT">wlc_coeffs</TD> <TD ALIGN="LEFT">root name of wavelength calibration coefficient table</TD> </TR> <TR><TD ALIGN="LEFT">INIT_WLC/C/1/1</TD> <TD ALIGN="LEFT">C</TD> <TD ALIGN="LEFT">get dispersion coefficients from spectrum; valid values: G,C,W</TD> </TR> <TR><TD ALIGN="LEFT">ORDER_FIRST/I/1/1</TD> <TD ALIGN="LEFT">25</TD> <TD ALIGN="LEFT">first order on CCD</TD> </TR> <TR><TD ALIGN="LEFT">ORDER_LAST/I/1/1</TD> <TD ALIGN="LEFT">63</TD> <TD ALIGN="LEFT">last order on CCD</TD> </TR> <TR><TD ALIGN="LEFT">LINE_W/I/1/1</TD> <TD ALIGN="LEFT">5</TD> <TD ALIGN="LEFT">width of spectral line</TD> </TR> <TR><TD ALIGN="LEFT">LINE_THRES/R/1/1</TD> <TD ALIGN="LEFT">10000</TD> <TD ALIGN="LEFT">background level</TD> </TR> <TR><TD ALIGN="LEFT">LINE_POS_TBL/C/1/80</TD> <TD ALIGN="LEFT">found_lines</TD> <TD ALIGN="LEFT">root name of found line table</TD> </TR> <TR><TD ALIGN="LEFT">LINE_MTD/C/1/80</TD> <TD ALIGN="LEFT">gauss</TD> <TD ALIGN="LEFT">line search method; valid values: GRA,MAX,MIN,GAUSS</TD> </TR> <TR><TD ALIGN="LEFT">LINE_TYPE/C/1/80</TD> <TD ALIGN="LEFT">emission</TD> <TD ALIGN="LEFT">line type; valid values: EMIS,ABSORP</TD> </TR> <TR><TD ALIGN="LEFT">LINE_REF_TBL/C/1/80</TD> <TD ALIGN="LEFT">ThAr50000</TD> <TD ALIGN="LEFT">name of laboratory wavelength table</TD> </TR> <TR><TD ALIGN="LEFT">ID_ALPHA/R/1/1</TD> <TD ALIGN="LEFT">0.2</TD> <TD ALIGN="LEFT">alpha value for line identification</TD> </TR> <TR><TD ALIGN="LEFT">ID_TOL/R/1/1</TD> <TD ALIGN="LEFT">0.2</TD> <TD ALIGN="LEFT">tolerance value for line identification</TD> </TR> <TR><TD ALIGN="LEFT">ID_THRES/R/1/1</TD> <TD ALIGN="LEFT">0.0</TD> <TD ALIGN="LEFT">intensity threshold for first step of line identification</TD> </TR> <TR><TD ALIGN="LEFT">SPECTR_G/R/1/1</TD> <TD ALIGN="LEFT">79.0</TD> <TD ALIGN="LEFT">grating constant (lines/mm)</TD> </TR> <TR><TD ALIGN="LEFT">SPECTR_F/R/1/1</TD> <TD ALIGN="LEFT">410.0</TD> <TD ALIGN="LEFT">focal length of camera (mm)</TD> </TR> <TR><TD ALIGN="LEFT">SPECTR_THB/R/1/1</TD> <TD ALIGN="LEFT">63.4</TD> <TD ALIGN="LEFT">blaze angle of spectrograph (degrees)</TD> </TR> <TR><TD ALIGN="LEFT">REBIN_IMG/C/1/80</TD> <TD ALIGN="LEFT">rebinned</TD> <TD ALIGN="LEFT">root name of rebinned spectrum</TD> </TR> <TR><TD ALIGN="LEFT">REBIN_SCL/C/1/1</TD> <TD ALIGN="LEFT">I</TD> <TD ALIGN="LEFT">scaling of rebinned spectrum (lInear or lOgarithmic)</TD> </TR> <TR><TD ALIGN="LEFT"> </TD> <TD ALIGN="LEFT"> </TD> <TD ALIGN="LEFT">valid values: I,O</TD> </TR> <TR><TD ALIGN="LEFT">REBIN_STEP/R/1/1</TD> <TD ALIGN="LEFT">0.03</TD> <TD ALIGN="LEFT">wavelength step of rebinned spectrum</TD> </TR> <TR><TD ALIGN="LEFT">REBIN_MTD/C/1/1</TD> <TD ALIGN="LEFT">S</TD> <TD ALIGN="LEFT">rebinning method; valid values: L,Q,S</TD> </TR> <TR><TD ALIGN="LEFT">MERGE_IMG/C/1/80</TD> <TD ALIGN="LEFT">merged</TD> <TD ALIGN="LEFT">root name of merged spectrum</TD> </TR> <TR><TD ALIGN="LEFT">MERGE_MTD/C/1/12</TD> <TD ALIGN="LEFT">SINC</TD> <TD ALIGN="LEFT">Merging methods: NOAPPEND,AVERAGE,SINC</TD> </TR> <TR><TD ALIGN="LEFT"> </TD> <TD ALIGN="LEFT"> </TD> <TD ALIGN="LEFT">(Associated command MERGE/FEROS)</TD> </TR> <TR><TD ALIGN="LEFT">MERGE_DELTA/R/1/1</TD> <TD ALIGN="LEFT">1.0</TD> <TD ALIGN="LEFT">Wav. interval to be skipped (MERGE_MTD=AVERAGE)</TD> </TR> <TR><TD ALIGN="LEFT">MERGE_ORD/I/1/2</TD> <TD ALIGN="LEFT">0,0</TD> <TD ALIGN="LEFT">Ord1,Ord2 (MERGE_MTD=NOAPP). 0,0:all orders</TD> </TR> </TABLE> </DIV> <BR> <P><HR> <!--Navigation Panel--> <A NAME="tex2html10350" HREF="node711.html"> <IMG WIDTH="37" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="next" SRC="icons.gif/next_motif.gif"></A> <A NAME="tex2html10347" HREF="node708.html"> <IMG WIDTH="26" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="up" SRC="icons.gif/up_motif.gif"></A> <A NAME="tex2html10343" HREF="node709.html"> <IMG WIDTH="63" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="previous" SRC="icons.gif/previous_motif.gif"></A> <A NAME="tex2html10349" 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="tex2html10351" HREF="node711.html">About this document ...</A> <B> Up:</B> <A NAME="tex2html10348" HREF="node708.html">Using the FEROS software</A> <B> Previous:</B> <A NAME="tex2html10344" HREF="node709.html">Initialization of the DRS</A> <!--End of Navigation Panel--> <ADDRESS> <I>Petra Nass</I> <BR><I>1999-06-15</I> </ADDRESS> </BODY> </HTML>
