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<H1><A NAME="SECTION003660000000000000000">
Data Structures</A>
</H1>

<P>
<B>MIDAS</B> tables and keywords
are used to store most the information created and/or used 
by the MOS context. 
The tables 
<!-- MATH: $\fbox{{\small \tt MOS}}$ -->
<IMG
 WIDTH="45" HEIGHT="26" ALIGN="BOTTOM" BORDER="0"
 SRC="img1331.gif"
 ALT="\fbox{{\small \tt MOS}}">,

<!-- MATH: $\fbox{{\small \tt LINPOS}}$ -->
<IMG
 WIDTH="77" HEIGHT="26" ALIGN="BOTTOM" BORDER="0"
 SRC="img1332.gif"
 ALT="\fbox{{\small \tt LINPOS}}">,

<!-- MATH: $\fbox{{\small \tt LINFIT}}$ -->
<IMG
 WIDTH="77" HEIGHT="26" ALIGN="BOTTOM" BORDER="0"
 SRC="img1333.gif"
 ALT="\fbox{{\small \tt LINFIT}}">,
and 
<!-- MATH: $\fbox{{\small \tt WINDOWS}}$ -->
<IMG
 WIDTH="87" HEIGHT="26" ALIGN="BOTTOM" BORDER="0"
 SRC="img1334.gif"
 ALT="\fbox{{\small \tt WINDOWS}}">
are created 
by the MOS commands; the table 
<!-- MATH: $\fbox{{\small \tt LINECAT}}$ -->
<IMG
 WIDTH="87" HEIGHT="26" ALIGN="BOTTOM" BORDER="0"
 SRC="img1335.gif"
 ALT="\fbox{{\small \tt LINECAT}}">
is available in the 
<B>MIDAS</B> data base.
A short description of the tables is given below; a detailed description of
their contents can be found in Table&nbsp;<A HREF="node685.html#tab-MOS-tables">L.6</A>.

<P>
<DL>
<DD><P>
<DT><STRONG>
<!-- MATH: $\fbox{{\small \tt MOS}}$ -->
<IMG
 WIDTH="45" HEIGHT="26" ALIGN="BOTTOM" BORDER="0"
 SRC="img1336.gif"
 ALT="\fbox{{\small \tt MOS}}">.tbl</STRONG>
<DD>is created by  <TT>LOCATE/MOS</TT> and used during the whole
reduction process. It contains the limits of the slitlets.

<P>
<DT><STRONG>
<!-- MATH: $\fbox{{\small \tt LINPOS}}$ -->
<IMG
 WIDTH="77" HEIGHT="26" ALIGN="BOTTOM" BORDER="0"
 SRC="img1337.gif"
 ALT="\fbox{{\small \tt LINPOS}}">.tbl</STRONG>
<DD>is created by <TT>SEARCH/MOS</TT> and updated by <TT>CALIBRATE/MOS</TT>. It contains the pixel-positions
of the calibration lines, the row and the slitlet they belong to, their 
identifications and their intensities.

<P>
<DT><STRONG>
<!-- MATH: $\fbox{{\small \tt LINFIT}}$ -->
<IMG
 WIDTH="77" HEIGHT="26" ALIGN="BOTTOM" BORDER="0"
 SRC="img1338.gif"
 ALT="\fbox{{\small \tt LINFIT}}">.tbl</STRONG>
<DD>is created by <TT>CALIBRATE/MOS</TT> and used by <TT>REBIN/MOS</TT>. It contains the fit coefficients for the dispersion relations
of each row scanned by <TT>SEARCH/MOS</TT>.

<P>
<DT><STRONG>
<!-- MATH: $\fbox{{\small \tt WINDOWS}}$ -->
<IMG
 WIDTH="87" HEIGHT="26" ALIGN="BOTTOM" BORDER="0"
 SRC="img1339.gif"
 ALT="\fbox{{\small \tt WINDOWS}}">.tbl</STRONG>
<DD>is created by <TT>DEFINE/MOS</TT> and used by <TT>FITSKY/MOS</TT> and by <TT>EXTRACT/MOS</TT>. It contains the positions of the
objects and the sky regions.

<P>
<DT><STRONG>
<!-- MATH: $\fbox{{\small \tt LINECAT}}$ -->
<IMG
 WIDTH="87" HEIGHT="26" ALIGN="BOTTOM" BORDER="0"
 SRC="img1340.gif"
 ALT="\fbox{{\small \tt LINECAT}}">.tbl</STRONG>
<DD>contains the wavelength calibration lines. There will 
be several line-catalogs available in the instrument related system area, 
adapted for the use with the FORS grisms.

<P>
</DL>
<BR>
<DIV ALIGN="CENTER"><A NAME="33280">&#160;</A>
<TABLE>
<CAPTION><STRONG>Table L.2:</STRONG>
Table MOS</CAPTION>
<TR><TD>
<TABLE CELLPADDING=3 BORDER="1">
<TR><TD ALIGN="CENTER" COLSPAN=3>Table MOS</TD>
</TR>
<TR><TD ALIGN="LEFT"><B> Label</B></TD>
<TD ALIGN="LEFT"><B> Unit</B></TD>
<TD ALIGN="LEFT"><B> Description</B></TD>
</TR>
<TR><TD ALIGN="LEFT"><TT> SLIT</TT></TD>
<TD ALIGN="LEFT">-</TD>
<TD ALIGN="LEFT">sequential number of slitlet</TD>
</TR>
<TR><TD ALIGN="LEFT"><TT> YSTART</TT></TD>
<TD ALIGN="LEFT"><TT> PIXEL</TT></TD>
<TD ALIGN="LEFT">first row of slitlet</TD>
</TR>
<TR><TD ALIGN="LEFT"><TT> YEND</TT></TD>
<TD ALIGN="LEFT"><TT> PIXEL</TT></TD>
<TD ALIGN="LEFT">last row of slitlet</TD>
</TR>
<TR><TD ALIGN="LEFT"><TT> XOFFSET</TT></TD>
<TD ALIGN="LEFT"><TT> PIXEL</TT></TD>
<TD ALIGN="LEFT">offset of slitlet</TD>
</TR>
</TABLE></TD></TR>
</TABLE>
</DIV>
<BR>
<BR>
<DIV ALIGN="CENTER"><A NAME="33305">&#160;</A>
<TABLE>
<CAPTION><STRONG>Table L.3:</STRONG>
Line positions table</CAPTION>
<TR><TD>
<TABLE CELLPADDING=3 BORDER="1">
<TR><TD ALIGN="CENTER" COLSPAN=3>Table LINPOS</TD>
</TR>
<TR><TD ALIGN="LEFT"><B> Label</B></TD>
<TD ALIGN="LEFT"><B> Unit</B></TD>
<TD ALIGN="LEFT" VALIGN="TOP" WIDTH=283><B> Description</B></TD>
</TR>
<TR><TD ALIGN="LEFT"><TT> X</TT></TD>
<TD ALIGN="LEFT"><TT> PIXEL</TT></TD>
<TD ALIGN="LEFT" VALIGN="TOP" WIDTH=283>x-position of calibration line</TD>
</TR>
<TR><TD ALIGN="LEFT"><TT> Y</TT></TD>
<TD ALIGN="LEFT">-</TD>
<TD ALIGN="LEFT" VALIGN="TOP" WIDTH=283>world coordinate of row in which the line was found</TD>
</TR>
<TR><TD ALIGN="LEFT"><TT> PEAK</TT></TD>
<TD ALIGN="LEFT">-</TD>
<TD ALIGN="LEFT" VALIGN="TOP" WIDTH=283>Peak intensity of calibration line</TD>
</TR>
<TR><TD ALIGN="LEFT"><TT> SLIT</TT></TD>
<TD ALIGN="LEFT">-</TD>
<TD ALIGN="LEFT" VALIGN="TOP" WIDTH=283>number of slitlet in which the line was found</TD>
</TR>
<TR><TD ALIGN="LEFT"><TT> WAVE</TT></TD>
<TD ALIGN="LEFT"><TT> Angstroem</TT></TD>
<TD ALIGN="LEFT" VALIGN="TOP" WIDTH=283>identification of the line (&#197;)</TD>
</TR>
<TR><TD ALIGN="LEFT"><TT> WAVEC</TT></TD>
<TD ALIGN="LEFT"><TT> Angstroem</TT></TD>
<TD ALIGN="LEFT" VALIGN="TOP" WIDTH=283>fitted wavelength  (&#197;)</TD>
</TR>
<TR><TD ALIGN="LEFT"><TT> RESIDUAL</TT></TD>
<TD ALIGN="LEFT"><TT> Angstroem</TT></TD>
<TD ALIGN="LEFT" VALIGN="TOP" WIDTH=283><TT> WAVEC-IDENT</TT> (&#197;)</TD>
</TR>
<TR><TD ALIGN="LEFT"><TT> REJECT</TT></TD>
<TD ALIGN="LEFT">-</TD>
<TD ALIGN="LEFT" VALIGN="TOP" WIDTH=283>Rejection code (-5: line has been rejected due to too 
large residual)</TD>
</TR>
</TABLE></TD></TR>
</TABLE>
</DIV>
<BR>
<BR>
<DIV ALIGN="CENTER"><A NAME="33319">&#160;</A>
<TABLE>
<CAPTION><STRONG>Table L.4:</STRONG>
Line catalog table</CAPTION>
<TR><TD><TABLE CELLPADDING=3 BORDER="1">
<TR><TD ALIGN="CENTER" COLSPAN=3>Table LINECAT</TD>
</TR>
<TR><TD ALIGN="LEFT"><B> Label</B></TD>
<TD ALIGN="LEFT"><B> Unit</B></TD>
<TD ALIGN="LEFT"><B> Description</B></TD>
</TR>
<TR><TD ALIGN="LEFT"><TT> WAVE</TT></TD>
<TD ALIGN="LEFT"><TT> ANGSTROEM</TT></TD>
<TD ALIGN="LEFT">wavelength of calibration lines</TD>
</TR>
</TABLE></TD></TR>
</TABLE>
</DIV>
<BR>
<BR>
<DIV ALIGN="CENTER"><A NAME="33339">&#160;</A>
<TABLE>
<CAPTION><STRONG>Table L.5:</STRONG>
Line fit table</CAPTION>
<TR><TD><TABLE CELLPADDING=3 BORDER="1">
<TR><TD ALIGN="CENTER" COLSPAN=3>Table LINFIT</TD>
</TR>
<TR><TD ALIGN="LEFT"><B> Label</B></TD>
<TD ALIGN="LEFT"><B> Unit</B></TD>
<TD ALIGN="LEFT" VALIGN="TOP" WIDTH=312><B> Description</B></TD>
</TR>
<TR><TD ALIGN="LEFT"><TT> SLIT</TT></TD>
<TD ALIGN="LEFT">-</TD>
<TD ALIGN="LEFT" VALIGN="TOP" WIDTH=312>number of slitlet in which the dispersion relation was 
determined</TD>
</TR>
<TR><TD ALIGN="LEFT"><TT> ROW</TT></TD>
<TD ALIGN="LEFT"><TT> PIXEL</TT></TD>
<TD ALIGN="LEFT" VALIGN="TOP" WIDTH=312>row in which the dispersion relation was determined</TD>
</TR>
<TR><TD ALIGN="LEFT"><TT> Y</TT></TD>
<TD ALIGN="LEFT">-</TD>
<TD ALIGN="LEFT" VALIGN="TOP" WIDTH=312>world coordinate of <TT> ROW</TT></TD>
</TR>
<TR><TD ALIGN="LEFT"><TT> RMS</TT></TD>
<TD ALIGN="LEFT"><TT> Angstroem</TT></TD>
<TD ALIGN="LEFT" VALIGN="TOP" WIDTH=312>r.m.s. error of dispersion relation (&#197;)</TD>
</TR>
<TR><TD ALIGN="LEFT"><TT> COEF_i</TT></TD>
<TD ALIGN="LEFT">-</TD>
<TD ALIGN="LEFT" VALIGN="TOP" WIDTH=312>dispersion coefficients</TD>
</TR>
</TABLE></TD></TR>
</TABLE>
</DIV>
<BR>
<BR>
<DIV ALIGN="CENTER"><A NAME="33358">&#160;</A>
<TABLE>
<CAPTION><STRONG>Table L.6:</STRONG>
Windows table</CAPTION>
<TR><TD><TABLE CELLPADDING=3 BORDER="1">
<TR><TD ALIGN="CENTER" COLSPAN=3>Table WINDOWS</TD>
</TR>
<TR><TD ALIGN="LEFT"><B> Label</B></TD>
<TD ALIGN="LEFT"><B> Unit</B></TD>
<TD ALIGN="LEFT"><B> Description</B></TD>
</TR>
<TR><TD ALIGN="LEFT"><TT> OBJ_SLIT</TT></TD>
<TD ALIGN="LEFT">-</TD>
<TD ALIGN="LEFT">number of slitlet in which the object was found</TD>
</TR>
<TR><TD ALIGN="LEFT"><TT> OBJ_STRT</TT></TD>
<TD ALIGN="LEFT">-</TD>
<TD ALIGN="LEFT">first row of the object's spectrum (world coordinates)</TD>
</TR>
<TR><TD ALIGN="LEFT"><TT> OBJ_END</TT></TD>
<TD ALIGN="LEFT">-</TD>
<TD ALIGN="LEFT">last row of the object's spectrum (world coordinates)</TD>
</TR>
<TR><TD ALIGN="LEFT"><TT> NET_INTENS</TT></TD>
<TD ALIGN="LEFT">-</TD>
<TD ALIGN="LEFT">net peak intensity the object's spectrum</TD>
</TR>
<TR><TD ALIGN="LEFT"><TT> SKY_STRT</TT></TD>
<TD ALIGN="LEFT">-</TD>
<TD ALIGN="LEFT">first row of sky regions (world coordinates)</TD>
</TR>
<TR><TD ALIGN="LEFT"><TT> SKY_END</TT></TD>
<TD ALIGN="LEFT">-</TD>
<TD ALIGN="LEFT">last row of sky regions (world coordinates)</TD>
</TR>
<TR><TD ALIGN="LEFT"><TT> SKY_SLIT</TT></TD>
<TD ALIGN="LEFT">-</TD>
<TD ALIGN="LEFT">number of slitlet in which the sky was found</TD>
</TR>
</TABLE></TD></TR>
</TABLE>
</DIV>
<BR>
<BR>
<DIV ALIGN="CENTER"><A NAME="33378">&#160;</A>
<TABLE>
<CAPTION><STRONG>Table L.7:</STRONG>
Standard star table</CAPTION>
<TR><TD><A NAME="tab-MOS-tables">&#160;</A><TABLE CELLPADDING=3 BORDER="1">
<TR><TD ALIGN="CENTER" COLSPAN=3>Table STANDARD</TD>
</TR>
<TR><TD ALIGN="LEFT"><B> Label</B></TD>
<TD ALIGN="LEFT"><B> Unit</B></TD>
<TD ALIGN="LEFT"><B> Description</B></TD>
</TR>
<TR><TD ALIGN="LEFT"><TT> MAGNITUDE</TT></TD>
<TD ALIGN="LEFT">-</TD>
<TD ALIGN="LEFT">magnitude</TD>
</TR>
<TR><TD ALIGN="LEFT"><TT> WAVE</TT></TD>
<TD ALIGN="LEFT"><TT> ANGSTROEM</TT></TD>
<TD ALIGN="LEFT">wavelength</TD>
</TR>
<TR><TD ALIGN="LEFT"><TT> BIN</TT></TD>
<TD ALIGN="LEFT"><TT> ANGSTROEM</TT></TD>
<TD ALIGN="LEFT">bin width</TD>
</TR>
<TR><TD ALIGN="LEFT"><TT> FLUX</TT></TD>
<TD ALIGN="LEFT"><TT> ERG/S/CM/CM/ANG</TT></TD>
<TD ALIGN="LEFT">flux</TD>
</TR>
</TABLE></TD></TR>
</TABLE>
</DIV>
<BR>

<P>
<BR>
<DIV ALIGN="CENTER"><A NAME="33391">&#160;</A>
<TABLE>
<CAPTION><STRONG>Table L.8:</STRONG>
Keywords used in context MOS</CAPTION>
<TR><TD><TABLE CELLPADDING=3 BORDER="1">
<TR><TD ALIGN="LEFT">Name</TD>
<TD ALIGN="RIGHT">Default value</TD>
<TD ALIGN="LEFT" VALIGN="TOP" WIDTH=227>Contents</TD>
</TR>
<TR><TD ALIGN="CENTER" COLSPAN=3>Keywords for flat-field related commands</TD>
</TR>
<TR><TD ALIGN="LEFT">FLATLIM/R/1/3</TD>
<TD ALIGN="RIGHT">0,0,0</TD>
<TD ALIGN="LEFT" VALIGN="TOP" WIDTH=227>detection parameters for slitlet location  
(detection threshold, median width, lower limit)</TD>
</TR>
<TR><TD ALIGN="LEFT">FFORD/I/1/1</TD>
<TD ALIGN="RIGHT">3</TD>
<TD ALIGN="LEFT" VALIGN="TOP" WIDTH=227>order of fit for the FF normalization</TD>
</TR>
<TR><TD ALIGN="LEFT">NORMMET/C/1/20</TD>
<TD ALIGN="RIGHT">POLY</TD>
<TD ALIGN="LEFT" VALIGN="TOP" WIDTH=227>method for FF normalization</TD>
</TR>
<TR><TD ALIGN="LEFT">ISLIT/I/1/1</TD>
<TD ALIGN="RIGHT">0</TD>
<TD ALIGN="LEFT" VALIGN="TOP" WIDTH=227>counter for slitlets</TD>
</TR>
<TR><TD ALIGN="LEFT">NSLIT/I/1/1</TD>
<TD ALIGN="RIGHT">0</TD>
<TD ALIGN="LEFT" VALIGN="TOP" WIDTH=227>total number of slitlets</TD>
</TR>
<TR><TD ALIGN="LEFT">SCAN_POS/D/1/1</TD>
<TD ALIGN="RIGHT">0.</TD>
<TD ALIGN="LEFT" VALIGN="TOP" WIDTH=227>scan position and width for slitlet location</TD>
</TR>
<TR><TD ALIGN="CENTER" COLSPAN=3>Keywords for wavelength calibration related commands</TD>
</TR>
<TR><TD ALIGN="LEFT">SEAPAR/C/1/20</TD>
<TD ALIGN="RIGHT">200,5</TD>
<TD ALIGN="LEFT" VALIGN="TOP" WIDTH=227>detection threshold and width</TD>
</TR>
<TR><TD ALIGN="LEFT">YBIN/C/1/20</TD>
<TD ALIGN="RIGHT">3,3</TD>
<TD ALIGN="LEFT" VALIGN="TOP" WIDTH=227>Step and Binning in Y</TD>
</TR>
<TR><TD ALIGN="LEFT">CENTMET/C/1/16</TD>
<TD ALIGN="RIGHT">GRAVITY</TD>
<TD ALIGN="LEFT" VALIGN="TOP" WIDTH=227>centering method for calibration lines</TD>
</TR>
<TR><TD ALIGN="LEFT">XPOS/D/1/50</TD>
<TD ALIGN="RIGHT">0.</TD>
<TD ALIGN="LEFT" VALIGN="TOP" WIDTH=227>Positions of identified lines (pixels)</TD>
</TR>
<TR><TD ALIGN="LEFT">LID/D/1/50</TD>
<TD ALIGN="RIGHT">0.</TD>
<TD ALIGN="LEFT" VALIGN="TOP" WIDTH=227>Positions of identified lines (Angstroems)</TD>
</TR>
<TR><TD ALIGN="LEFT">WLCMET/C/1/2</TD>
<TD ALIGN="RIGHT">FC</TD>
<TD ALIGN="LEFT" VALIGN="TOP" WIDTH=227>Wavelength calibration method (Ident/Linear/ 
Fors) and (Constant/Variable/Fit)</TD>
</TR>
<TR><TD ALIGN="LEFT">POLTYP/C/1/10</TD>
<TD ALIGN="RIGHT">CHEBYSHEV</TD>
<TD ALIGN="LEFT" VALIGN="TOP" WIDTH=227>type of polynomials used for fitting 
(Polynom, Legendre or Chebyshev)</TD>
</TR>
<TR><TD ALIGN="LEFT">TOL/R/1/1</TD>
<TD ALIGN="RIGHT">2.0</TD>
<TD ALIGN="LEFT" VALIGN="TOP" WIDTH=227>tolerance for autom. wavel. ident. 
(&lt; 0 &#197;, &gt; pix)</TD>
</TR>
<TR><TD ALIGN="LEFT">TOLWIND/I/1/1</TD>
<TD ALIGN="RIGHT">4</TD>
<TD ALIGN="LEFT" VALIGN="TOP" WIDTH=227>tolerance window for interact. wavel. ident.</TD>
</TR>
<TR><TD ALIGN="LEFT">WLCORD/I/1/2</TD>
<TD ALIGN="RIGHT">2,1</TD>
<TD ALIGN="LEFT" VALIGN="TOP" WIDTH=227>order of fit used to compute the dispersion</TD>
</TR>
<TR><TD ALIGN="LEFT">ALPHA/R/1/1</TD>
<TD ALIGN="RIGHT">0.2</TD>
<TD ALIGN="LEFT" VALIGN="TOP" WIDTH=227>Rejection parameter for lines matching [0,.5]</TD>
</TR>
<TR><TD ALIGN="LEFT">SHIFTTOL/I/1/1</TD>
<TD ALIGN="RIGHT">10</TD>
<TD ALIGN="LEFT" VALIGN="TOP" WIDTH=227>tolerance for line identification from one 
slitlet to next</TD>
</TR>
<TR><TD ALIGN="LEFT">YSTART/I/1/1</TD>
<TD ALIGN="RIGHT">0</TD>
<TD ALIGN="LEFT" VALIGN="TOP" WIDTH=227>Starting row for calibration (pixel value)</TD>
</TR>
<TR><TD ALIGN="LEFT">WLCNITER/I/1/2</TD>
<TD ALIGN="RIGHT">3,20</TD>
<TD ALIGN="LEFT" VALIGN="TOP" WIDTH=227>Minimum, Maximum number of iterations</TD>
</TR>
<TR><TD ALIGN="LEFT">MAXDEV/R/1/1</TD>
<TD ALIGN="RIGHT">10.</TD>
<TD ALIGN="LEFT" VALIGN="TOP" WIDTH=227>Maximum deviation (pixels)</TD>
</TR>
<TR><TD ALIGN="LEFT">WCENTER/D/1/1</TD>
<TD ALIGN="RIGHT">0.</TD>
<TD ALIGN="LEFT" VALIGN="TOP" WIDTH=227>Central wavelength</TD>
</TR>
<TR><TD ALIGN="LEFT">AVDISP/R/1/1</TD>
<TD ALIGN="RIGHT">0.</TD>
<TD ALIGN="LEFT" VALIGN="TOP" WIDTH=227>Average dispersion per pixel</TD>
</TR>
<TR><TD ALIGN="LEFT">PLOTC/C/1/1</TD>
<TD ALIGN="RIGHT">N</TD>
<TD ALIGN="LEFT" VALIGN="TOP" WIDTH=227>Plot residuals of wavelength calibration</TD>
</TR>
<TR><TD ALIGN="LEFT">CAL/I/1/100</TD>
<TD ALIGN="RIGHT">0</TD>
<TD ALIGN="LEFT" VALIGN="TOP" WIDTH=227>Results of moscalib (+1 dispersion relation  
fitted, -1 no dispersion relation fitted)</TD>
</TR>
<TR><TD ALIGN="LEFT">DISP/I/1/1</TD>
<TD ALIGN="RIGHT">0</TD>
<TD ALIGN="LEFT" VALIGN="TOP" WIDTH=227>amount of intermediate display for 
<TT> CALIB/MOS</TT></TD>
</TR>
<TR><TD ALIGN="LEFT">GRISM/I/1/1</TD>
<TD ALIGN="RIGHT">1</TD>
<TD ALIGN="LEFT" VALIGN="TOP" WIDTH=227>No. of grism used</TD>
</TR>
<TR><TD ALIGN="LEFT">REJTHRES/R/1/1</TD>
<TD ALIGN="RIGHT">3.</TD>
<TD ALIGN="LEFT" VALIGN="TOP" WIDTH=227>rejection threshold</TD>
</TR>
</TABLE></TD></TR>
</TABLE>
</DIV>
<BR>
<P>
<BR>
<DIV ALIGN="CENTER"><A NAME="33409">&#160;</A>
<TABLE>
<CAPTION><STRONG>Table L.9:</STRONG>
Keywords used in context MOS (cont'd)</CAPTION>
<TR><TD><TABLE CELLPADDING=3 BORDER="1">
<TR><TD ALIGN="LEFT">Name</TD>
<TD ALIGN="RIGHT">Default value</TD>
<TD ALIGN="LEFT" VALIGN="TOP" WIDTH=227>Contents</TD>
</TR>
<TR><TD ALIGN="CENTER" COLSPAN=3>Keywords for rebinning commands</TD>
</TR>
<TR><TD ALIGN="LEFT">REBMET/C/1/12</TD>
<TD ALIGN="RIGHT">LINEAR</TD>
<TD ALIGN="LEFT" VALIGN="TOP" WIDTH=227>Rebinning method (LINEAR, QUADRATIC, SPLINE)</TD>
</TR>
<TR><TD ALIGN="LEFT">REBSTRT/D/1/1</TD>
<TD ALIGN="RIGHT">0.</TD>
<TD ALIGN="LEFT" VALIGN="TOP" WIDTH=227>Starting wavelength for rebinning</TD>
</TR>
<TR><TD ALIGN="LEFT">REBEND/D/1/1</TD>
<TD ALIGN="RIGHT">0.</TD>
<TD ALIGN="LEFT" VALIGN="TOP" WIDTH=227>Final wavelength for rebinning</TD>
</TR>
<TR><TD ALIGN="LEFT">REBSTP/D/1/1</TD>
<TD ALIGN="RIGHT">0.</TD>
<TD ALIGN="LEFT" VALIGN="TOP" WIDTH=227>Wavelength step for rebinning</TD>
</TR>
<TR><TD ALIGN="CENTER" COLSPAN=3>Keywords for object extraction and sky subtraction related commands</TD>
</TR>
<TR><TD ALIGN="LEFT">THRESH/R/1/1</TD>
<TD ALIGN="RIGHT">-0.04</TD>
<TD ALIGN="LEFT" VALIGN="TOP" WIDTH=227>detection threshold for object search</TD>
</TR>
<TR><TD ALIGN="LEFT">WIND/I/1/1</TD>
<TD ALIGN="RIGHT">5</TD>
<TD ALIGN="LEFT" VALIGN="TOP" WIDTH=227>detection window for object search</TD>
</TR>
<TR><TD ALIGN="LEFT">XBIN/I/1/1</TD>
<TD ALIGN="RIGHT">20</TD>
<TD ALIGN="LEFT" VALIGN="TOP" WIDTH=227>Binning in X for object search</TD>
</TR>
<TR><TD ALIGN="LEFT">SCAN_POS/D/1/1</TD>
<TD ALIGN="RIGHT">0.</TD>
<TD ALIGN="LEFT" VALIGN="TOP" WIDTH=227>center for scan (define/mos) in world  
coordinates</TD>
</TR>
<TR><TD ALIGN="LEFT">INT_LIM/D/1/1</TD>
<TD ALIGN="RIGHT">0.001</TD>
<TD ALIGN="LEFT" VALIGN="TOP" WIDTH=227>fraction of central intensity where object 
limits shall be defined</TD>
</TR>
<TR><TD ALIGN="LEFT">NOBJ/I/1/1</TD>
<TD ALIGN="RIGHT">0</TD>
<TD ALIGN="LEFT" VALIGN="TOP" WIDTH=227>number of objects found by define/mos</TD>
</TR>
<TR><TD ALIGN="LEFT">NSKY/I/1/1</TD>
<TD ALIGN="RIGHT">0</TD>
<TD ALIGN="LEFT" VALIGN="TOP" WIDTH=227>number of sky-regions found by define/mos</TD>
</TR>
<TR><TD ALIGN="LEFT">SKYMET/C/1/16</TD>
<TD ALIGN="RIGHT">&nbsp;</TD>
<TD ALIGN="LEFT" VALIGN="TOP" WIDTH=227>method used to fit sky</TD>
</TR>
<TR><TD ALIGN="LEFT">SKYPAR/I/1/6</TD>
<TD ALIGN="RIGHT">0</TD>
<TD ALIGN="LEFT" VALIGN="TOP" WIDTH=227>order of fit for polynomial or width of window for median</TD>
</TR>
<TR><TD ALIGN="LEFT">EXTPAR/C/1/60</TD>
<TD ALIGN="RIGHT">&nbsp;</TD>
<TD ALIGN="LEFT" VALIGN="TOP" WIDTH=227>extraction parameters (order, iter)</TD>
</TR>
<TR><TD ALIGN="CENTER" COLSPAN=3>Keywords for frame names</TD>
</TR>
<TR><TD ALIGN="LEFT">OBJ/C/1/60</TD>
<TD ALIGN="RIGHT">&nbsp;</TD>
<TD ALIGN="LEFT" VALIGN="TOP" WIDTH=227>object frame</TD>
</TR>
<TR><TD ALIGN="LEFT">EXTOBJEC/C/1/60</TD>
<TD ALIGN="RIGHT">&nbsp;</TD>
<TD ALIGN="LEFT" VALIGN="TOP" WIDTH=227>extracted object frame</TD>
</TR>
<TR><TD ALIGN="LEFT">CALOBJEC/C/1/40</TD>
<TD ALIGN="RIGHT">&nbsp;</TD>
<TD ALIGN="LEFT" VALIGN="TOP" WIDTH=227>extracted object frame</TD>
</TR>
<TR><TD ALIGN="LEFT">SKYFRAME/C/1/60</TD>
<TD ALIGN="RIGHT">sky</TD>
<TD ALIGN="LEFT" VALIGN="TOP" WIDTH=227>sky  frame</TD>
</TR>
<TR><TD ALIGN="LEFT">WLC/C/1/60</TD>
<TD ALIGN="RIGHT">wlc</TD>
<TD ALIGN="LEFT" VALIGN="TOP" WIDTH=227>calibration frame</TD>
</TR>
<TR><TD ALIGN="LEFT">FLAT/C/1/60</TD>
<TD ALIGN="RIGHT">flat</TD>
<TD ALIGN="LEFT" VALIGN="TOP" WIDTH=227>flat-field</TD>
</TR>
<TR><TD ALIGN="LEFT">NORMFLAT/C/1/60</TD>
<TD ALIGN="RIGHT">normflat</TD>
<TD ALIGN="LEFT" VALIGN="TOP" WIDTH=227>normalized flat-field</TD>
</TR>
<TR><TD ALIGN="CENTER" COLSPAN=3>Keywords for table names</TD>
</TR>
<TR><TD ALIGN="LEFT">MOS/C/1/60</TD>
<TD ALIGN="RIGHT">mos</TD>
<TD ALIGN="LEFT" VALIGN="TOP" WIDTH=227>table with slitlets' positions</TD>
</TR>
<TR><TD ALIGN="LEFT">LINFIT/C/1/60</TD>
<TD ALIGN="RIGHT">coerbr</TD>
<TD ALIGN="LEFT" VALIGN="TOP" WIDTH=227>table with dispersion coefficients</TD>
</TR>
<TR><TD ALIGN="LEFT">LINPOS/C/1/60</TD>
<TD ALIGN="RIGHT">linpos</TD>
<TD ALIGN="LEFT" VALIGN="TOP" WIDTH=227>table with wavelength positions</TD>
</TR>
<TR><TD ALIGN="LEFT">LINECAT/C/1/60</TD>
<TD ALIGN="RIGHT">hear</TD>
<TD ALIGN="LEFT" VALIGN="TOP" WIDTH=227>table with wavelength positions</TD>
</TR>
<TR><TD ALIGN="LEFT">WINDOWS/C/1/60</TD>
<TD ALIGN="RIGHT">windows</TD>
<TD ALIGN="LEFT" VALIGN="TOP" WIDTH=227>table with sky and objects positions</TD>
</TR>
</TABLE></TD></TR>
</TABLE>
</DIV>
<BR>
<P>
<BR>
<DIV ALIGN="CENTER"><A NAME="33418">&#160;</A>
<TABLE>
<CAPTION><STRONG>Table L.10:</STRONG>
Keywords used in context MOS (cont'd)</CAPTION>
<TR><TD><TABLE CELLPADDING=3 BORDER="1">
<TR><TD ALIGN="LEFT">Name</TD>
<TD ALIGN="RIGHT">Default value</TD>
<TD ALIGN="LEFT" VALIGN="TOP" WIDTH=227>Contents</TD>
</TR>
<TR><TD ALIGN="CENTER" COLSPAN=3>Keywords for CCD parameters</TD>
</TR>
<TR><TD ALIGN="LEFT">STEP/D/1/2</TD>
<TD ALIGN="RIGHT">0.,0.</TD>
<TD ALIGN="LEFT" VALIGN="TOP" WIDTH=227>step-size of raw frame</TD>
</TR>
<TR><TD ALIGN="LEFT">START/D/1/2</TD>
<TD ALIGN="RIGHT">0.,0.</TD>
<TD ALIGN="LEFT" VALIGN="TOP" WIDTH=227>start values of raw frame</TD>
</TR>
<TR><TD ALIGN="LEFT">NPIX/I/1/2</TD>
<TD ALIGN="RIGHT">0,0</TD>
<TD ALIGN="LEFT" VALIGN="TOP" WIDTH=227>size of raw frame</TD>
</TR>
<TR><TD ALIGN="LEFT">CCDPAR/C/1/60</TD>
<TD ALIGN="RIGHT">&nbsp;</TD>
<TD ALIGN="LEFT" VALIGN="TOP" WIDTH=227>read-out-noise and conversion factor of CCD</TD>
</TR>
</TABLE></TD></TR>
</TABLE>
</DIV>
<BR>
<P>
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<ADDRESS>
<I>Petra Nass</I>
<BR><I>1999-06-15</I>
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