<?xml version="1.0" encoding="UTF-8"?>

<!-- <!DOCTYPE sddlschema SYSTEM "sddlschema.xsd">-->

<sddl>

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<!--  SDDL Name:  STIS_FILT.SDDL -->
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<!--  Purpose:      This SDDL file defines the STIS_FILT relation.-->
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<!--  Modification History:-->
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<!--    Date       PR      Who                       Reason-->
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<!--  04/04/97   33685     Schultz   Original implementation -->
<lm>  07/03/03   48821     CTB   Converted to XML format </lm> <!-- last mod -->
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    <record name="STIS_FILT_TYPE"> 

        <description>"This relation is used to define the values OPUS needs to
                   populate Archive Search Keywords for observations using
                   imaging apertures when obstype=IMAGING.  There must be a
                   record in this table for every STIS imaging filtered
                   aperture."</description>

           <field name="aperture">
                    <type>C10</type>
                    <description>"Aperture names are the  SIAF designations (beginning
                         with OF..., ON..., and OV...).  See
                         CGG5_SIAP.si_aper_id."</description>
            </field>
	
            <field name="pivot_wave">
                    <type>R4</type>
                    <description>"The pivot wavelength of the bandpass. (Angstrom)"</description>

            </field>
	
            <field name="band_width">
                    <type>R4</type>
                    <description>"Bandpass RMS width of imaging aperture (Angstrom)"</description>

            </field>

            <field name="min_wave">
                    <type>R4</type>
                    <description>"Minimum wavelength in bandpass. (Angstrom)"</description>

            </field>
 
            <field name="max_wave">
                    <type>R4</type>
                    <description>"Maximum wavelength in bandpass. (Angstrom)"</description>

            </field>
 
    </record>
 
  
 
    <relation name="stis_filt">
 
        <type>STIS_FILT_TYPE</type>

        <description>STIS Imaging Relation</description>

        <subsystem_using>OPUS</subsystem_using>

        <index name="stis_filt_1">
            <type>unique clustered</type>
            <field name="aperture"/>
        </index>

    </relation>
  
 
    <instance  name="stis_filt" scope="global" type="STIS_FILT_TYPE" />
 
</sddl>
