urn:nasa:pds:system_bundle:xml_schema:rings-xml_schema 1.5 1.8.0.0 Product_XML_Schema 2013-07-31 1.0 -This is the PDS4 product label for the initial release of the rings dictionary Schema and Schematron files. 2014-03-29 1.2 - Moved information from comments into definitions for all attributes. - Added source product, orbit number and sclk start/stop times. - Revised some enumerated value options, and corrected some nillable inconsistencies. 2015-01-23 1.3 - Updated to version 1.3.0.1 of IM. - Added min/max_observed_event_time. - Included reference_time_UTC as optional attribute for all profile labels. - Revised some definitions. 2016-04-25 1.4 - This version was not released - Updated to version 1.6.0.0 of IM. - Corrected case errors in class and attribute names and enumerated values - Changed several time attribute types from ASCII_Date_Time_UTC to ASCII_Date_Time_YMD_UTC - revised several definitions - Changed ring_occultation_direction to occultation_direction, and modified the definitions for the values ingress and egress. - Added the class Occultation_Time_Series. - Combined Radio_Occultation and Stellar_Occultation into Occultation_Ring_Profile - Renamed Radio_Occultation_Support to Occultation_Supplement - Removed ring_observation_id and source_pds3_id from all classes except Occultation_Supplement. - Added Schematron rules to make some optional attributes required based on the value of occultation type (e.g., dsn_station_number if occultation_type = radio, sub_stellar_ring_azimuth if occultation_type = stellar). - Reordered some attributes in Occultation_Time_Series. - Reordered some attributes in Occultation_Supplement. 2017-04-12 1.5 - Changed schema location URLs to https - Updated to version 1.8.0.0 of IM. - Revised definition of pds3_source_id - Corrected the definition of sub_stellar_ring_azimuth - Changed the name of the umbrella class from Occultation to Ring_Moon_Systems - Added Time_Series_Direction PDS4_RINGS_1800_1500.xsd 2017-04-12T05:53:07 PDS4_RINGS_1800_1500.xsd 0 XML Schema Version 1.1 This is a PDS4 XML Schema file for the rings namespace. PDS4_RINGS_1800_1500.sch 2017-04-12T05:53:07 PDS4_RINGS_1800_1500.sch 0 Schematron ISO/IEC 19757-3:2006 This is the PDS4 Schematron file for the rings namespace. Schematron provides rule-based validation for XML Schema.