Implementation of an XML Schema describing a SkyNode Service. Based on "http://www.ivoa.net/internal/IVOA/IvoaVOQL/SkyNodeInterface-0.7.4.pdf", Diff: Registry data for the standard openskynode service. The standard OpenSkyNode interface is defined to be WebService; the specifics of this interface (e.g. the supported inputs) can be given using xsi:type="WebService" with the Interface element. Specific meatadat for this OpenSkyNode It is not necessary to provide a value to the standardURL attribute as it defaults to the current standard location. an abstract capability that sets the standardURL to the OpenSkyNode standard definition The capabilities of an OpenSkyNode implementation. It includes required parameters for OpenSkyQuery portal Indicates level of compliance: full, basic, partial for OSN. A full node must implement all the methods of the Spec including ExecutePlan. A Basic node only needs performQuery , tables, columns and availability. The latitude Earth position of archive (GPS) The longitude Earth position of archive (GPS) maximum records the service will return Table name which contains the main positions and key - used by the query builder on the portal. The primary key of the primary Table - used by the query builder on the portal.