Sophie: eso-midas-doc-13SEPpl1.2-3.mga5 i586

eso-midas-doc-13SEPpl1.2-3.mga5.i586.rpm

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<H2><A NAME="SECTION0011103000000000000000">
Table Formats</A>
</H2> 
MIDAS table files are used to store relevant information in tabular
form. Four types of tables are considered. The first two, tables
order.tbl and line.tbl, are operational tables generated by the user
during the session. The other two types of tables are provided by the
system to calibrate the data in wavelength and flux.

<P>
<DL>
<DT><DD>order.tbl -- Contains 
echelle orders. 
    This table contains the coefficients <I>a</I><SUB><I>ij</I></SUB> in 
    relation&nbsp;<A HREF="node150.html#echelle-2">7.2</A> stored as descriptors. 
    The table is created by the command <TT>DEFINE/ECHELLE</TT> or <TT>DEFINE/HOUGH</TT>
<DT><DD>back.tbl -- Contains information related to the background
  reference positions. This table is created by the command <TT>PREPARE/BACKGROUND</TT>
  which is called by <TT>DEFINE/ECHELLE</TT> and <TT>DEFINE/HOUGH</TT>.
<DT><DD>line.tbl -- Contains information related to the position of the
  calibration lines. 
  This table contains the dispersion coefficients for each spectral order,
  stored as descriptors after the line identification process. It is 
  generated by the command <TT>SEARCH/ECHELLE</TT> and extended and updated by
  the command <TT>IDENTIFY/ECHELLE</TT>.
<DT><STRONG>Line Catalogue</STRONG>
<DD>-- Contains the wavelength calibration lines. 
  There are several 
  line catalogues available in instrument related system area, like
  <TT>MID_CASPEC</TT> and <TT>MID_EFOSC</TT>.
<DT><STRONG>Standard Stars</STRONG>
<DD>-- Contains the fluxes of standard stars in different
  units. 
  These tables are copied
  automatically from the area <TT>MID_STANDARD</TT> into 
  the user work space with the command <TT>SET/ECHELLE FLUXTAB=name</TT>
</DL> 

<P>
<BR>
<DIV ALIGN="CENTER"><A NAME="7466">&#160;</A>
<TABLE>
<CAPTION><STRONG>Table 7.1:</STRONG>
Auxiliary Tables</CAPTION>
<TR><TD>
  <DIV ALIGN="CENTER">
<TABLE CELLPADDING=3 BORDER="1" ALIGN="CENTER">
<TR><TD ALIGN="CENTER" COLSPAN=3>Table order.tbl</TD>
</TR>
<TR><TH ALIGN="LEFT"><B>Label 	</B></TH>
<TD ALIGN="LEFT"><B>Unit 	</B></TD>
<TD ALIGN="LEFT"><B>Description </B></TD>
</TR>
<TR><TD ALIGN="LEFT"><TT> ORDER</TT></TD>
<TD ALIGN="LEFT">-</TD>
<TD ALIGN="LEFT">sequential order number</TD>
</TR>
<TR><TD ALIGN="LEFT"><TT> X</TT></TD>
<TD ALIGN="LEFT"><TT> PIXEL</TT></TD>
<TD ALIGN="LEFT">sample (<I>x</I>-axis) position of the order</TD>
</TR>
<TR><TD ALIGN="LEFT"><TT> Y</TT></TD>
<TD ALIGN="LEFT"><TT> PIXEL</TT></TD>
<TD ALIGN="LEFT">line (<I>y</I>-axis) position of the order</TD>
</TR>
<TR><TD ALIGN="LEFT"><TT> YFIT</TT></TD>
<TD ALIGN="LEFT"><TT> PIXEL</TT></TD>
<TD ALIGN="LEFT">fitted line (<I>y</I>-axis) position of the order</TD>
</TR>
<TR><TD ALIGN="LEFT"><TT> RESIDUAL</TT></TD>
<TD ALIGN="LEFT"><TT> PIXEL</TT></TD>
<TD ALIGN="LEFT">residual (<TT> Y-YFIT</TT>)</TD>
</TR>
<TR><TD ALIGN="CENTER" COLSPAN=3>Table back.tbl</TD>
</TR>
<TR><TH ALIGN="LEFT"><B>Label 	</B></TH>
<TD ALIGN="LEFT"><B>Unit 	</B></TD>
<TD ALIGN="LEFT"><B>Description </B></TD>
</TR>
<TR><TD ALIGN="LEFT"><TT> ORDER</TT></TD>
<TD ALIGN="LEFT">-</TD>
<TD ALIGN="LEFT">sequential order number</TD>
</TR>
<TR><TD ALIGN="LEFT"><TT> X</TT></TD>
<TD ALIGN="LEFT"><TT> PIXEL</TT></TD>
<TD ALIGN="LEFT">sample (<I>x</I>-axis) position of the order</TD>
</TR>
<TR><TD ALIGN="LEFT"><TT> YBKG</TT></TD>
<TD ALIGN="LEFT"><TT> PIXEL</TT></TD>
<TD ALIGN="LEFT">line position of the background above the order</TD>
</TR>
<TR><TD ALIGN="LEFT"><TT> BKG</TT></TD>
<TD ALIGN="LEFT"><TT> DN</TT></TD>
<TD ALIGN="LEFT">value of the background</TD>
</TR>
<TR><TD ALIGN="CENTER" COLSPAN=3>Table line.tbl</TD>
</TR>
<TR><TH ALIGN="LEFT"><B>Label		</B></TH>
<TD ALIGN="LEFT"><B>Unit	</B></TD>
<TD ALIGN="LEFT"><B>Description </B></TD>
</TR>
<TR><TD ALIGN="LEFT"><TT> X</TT></TD>
<TD ALIGN="LEFT"><TT> PIXEL</TT></TD>
<TD ALIGN="LEFT">sample (<I>x</I>-axis) position of the line</TD>
</TR>
<TR><TD ALIGN="LEFT"><TT> Y</TT></TD>
<TD ALIGN="LEFT"><TT> PIXEL</TT></TD>
<TD ALIGN="LEFT">relative order number</TD>
</TR>
<TR><TD ALIGN="LEFT"><TT> PEAK</TT></TD>
<TD ALIGN="LEFT"><TT> DN</TT></TD>
<TD ALIGN="LEFT">estimated line maximum</TD>
</TR>
<TR><TD ALIGN="LEFT"><TT> YNEW</TT></TD>
<TD ALIGN="LEFT"><TT> PIXEL</TT></TD>
<TD ALIGN="LEFT">line (<I>y</I>-axis) position of the line</TD>
</TR>
<TR><TD ALIGN="LEFT"><TT> ORDER</TT></TD>
<TD ALIGN="LEFT">-</TD>
<TD ALIGN="LEFT">spectral order number</TD>
</TR>
<TR><TD ALIGN="LEFT"><TT> IDENT</TT></TD>
<TD ALIGN="LEFT"><TT> ANGSTROM</TT></TD>
<TD ALIGN="LEFT">manual identification</TD>
</TR>
<TR><TD ALIGN="LEFT"><TT> WAVEC</TT></TD>
<TD ALIGN="LEFT"><TT> ANGSTROM</TT></TD>
<TD ALIGN="LEFT">computed wavelength</TD>
</TR>
<TR><TD ALIGN="LEFT"><TT> RESIDUAL</TT></TD>
<TD ALIGN="LEFT"><TT> ANGSTROM</TT></TD>
<TD ALIGN="LEFT">residual <TT> (WAVEC-WAVE)</TT></TD>
</TR>
<TR><TD ALIGN="CENTER" COLSPAN=3>Line Catalogue</TD>
</TR>
<TR><TH ALIGN="LEFT"><B>Label 	</B></TH>
<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> ANGSTROM</TT></TD>
<TD ALIGN="LEFT">wavelength</TD>
</TR>
<TR><TD ALIGN="CENTER" COLSPAN=3>Standard Star Atlas</TD>
</TR>
<TR><TH ALIGN="LEFT"><B>Label 	</B></TH>
<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"><TT> -</TT></TD>
<TD ALIGN="LEFT">magnitude</TD>
</TR>
<TR><TD ALIGN="LEFT"><TT> WAVE</TT></TD>
<TD ALIGN="LEFT"><TT> ANGSTROM</TT></TD>
<TD ALIGN="LEFT">wavelength</TD>
</TR>
<TR><TD ALIGN="LEFT"><TT> BIN_W</TT></TD>
<TD ALIGN="LEFT"><TT> ANGSTROM</TT></TD>
<TD ALIGN="LEFT">bin width</TD>
</TR>
<TR><TD ALIGN="LEFT"><TT> FLUX_W</TT></TD>
<TD ALIGN="LEFT"><TT> ERGS/S/CM/CM/ANG</TT></TD>
<TD ALIGN="LEFT">flux</TD>
</TR>
</TABLE></DIV>  
  <A NAME="elements-of-standard-star-rows">&#160;</A></TD></TR>
</TABLE>
</DIV>
<BR>

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<ADDRESS>
<I>Petra Nass</I>
<BR><I>1999-06-15</I>
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