Error

Element Information

Model

Attributes

QName Type Fixed Default Use Inheritable Annotation
sigmas xs:double optional
units xs:string arcseconds required

Source 

<xs:element name="Error" minOccurs="0">
  <xs:complexType>
    <xs:simpleContent>
      <xs:extension base="xs:double">
        <xs:attribute name="units" type="xs:string" use="required" fixed="arcseconds"/>
        <xs:attribute name="sigmas" type="xs:double"/>
      </xs:extension>
    </xs:simpleContent>
  </xs:complexType>
</xs:element>

Sample