1. The International Planetary
The International Planetary Data Alliance (IPDA): Activities in Daniel Crichton, Alain Sarkissian, Yasumasa Kasba, Mara Teresa Capria, Reta Beebe, J. Steven Hughes, Pedro Osuna COSPAR 2012 Mysore, India 19 July 2012

2. Moving Towards International Interoperability
In 2005, an initial plan was developed to explore interoperability between ESA Planetary Science Archive and NASA Planetary Data System
ESA and NASA shared same data standards based on PDS v3
In 2006, the IPDA was formed with an initial Steering Committee with representatives from several agencies
In 2008, COSPAR officially recognized IPDA for setting archiving standards via a resolution in Commission B
IPDA has just completed its 7th meeting
COSPAR 2012

3. Mission of IPDA*
“Facilitate global access to, and exchange of, high quality scientific data products managed across international boundaries”
Support construction of compatible archives
Support sharing of tools and software services
Define “data standards within the IPDA, including the data models and derived dictionaries, based on the NASA Planetary Data System (PDS) that is the de-facto standard for all planetary data at the time of the IPDA founding”
* Extracted from IPDA Charter, July 2007
COSPAR 2012

4. Current IPDA Steering Committee
Steering Committee Members :
Chair ( ) Dan Crichton (NASA/JPL, PDS)
Deputy Chair ( ) Alain Sarkissian (IPSL)
Chair ( ) Yasumasa Kasaba (Tohoku Univ., Japan)
Former Chair ( ) Joe Zender (ESA: PSA)
Former Chair ( ) Maria Teresa Capria (IASF/INAF, Italy)
NASA-PDS Reta Beebe (NMSU), Dan Crichton (NASA)
ESA-PSA Dave Heather, Christophe Arviset
Canada (CSA) Mickael Germain, Vicky Hipki
France (CNES) Richard Moreno, Thierry Levoir, Alain Sarkissian (IPSL)
Germany (DLR) Karin Eichentopf, Thomas Roatsch
India (ISRO) B. Gopala Krishna, R. Srinivasan
Italy (ASI) Paolo Giommi, Maria Teresa Capria (INAF)
Japan (JAXA) Iku Shinohara, Yukio Yamamoto
UK Mark Leese (Open Univ.), Peter Allan (RAL)
China Chunlai Li, Wang Chi (CAS)
with Ling Zongcheng (Shandong Univ.)
Russia Vladimir Nazarov, Alexander ZAKHAROV (RAS/RKA)
COSPAR 2012

5. Constructing International Planetary Data Archives Standards
COSPAR 2012

6. IPDA Standards Architecture
The IPDA Reference System Architecture is decomposed into three core pieces:
Process Architecture
Describes a set of standard processes for planetary science archive data systems
Data Architecture
Describes a set of data standards for planetary science archive data systems
Technology Architecture
Describes a set of standards for enabling interoperability between planetary science archive data systems
IPDA has initiated projects in each of these areas
A Reference Architecture is a set of best practice specifications that can be used for guiding the implementation of a system
COSPAR 2012

7. Focus in
Development and Coordination with PDS on the next generation PDS (PDS4) to enable construction of compatible planetary archives
Development of a Planetary Data Access Protocol to access planetary archives
Development of international registries to enable registration and search of data, tools and services
Standards related to geometry and navigation
Improvements in the operation and administration IPDA and release of standards
COSPAR 2012

8. PDS4: Next Generation PDS
PDS4 is an upgrade from PDS version 3 to version 4.
Drive consistency across future archive products
A transition from a 20-year-old collection of standards and tools to a modern system constructed using best practices for data system development to enable international planetary data archives.
Fewer, simpler, and more rigorously defined formats for science data products.
Use of XML, a well-supported international standard, for data product labeling, validation, and searching.
A hierarchy of data dictionaries built to the ISO standard, designed to increase flexibility, enable complex searches, and make it easier to share data internationally.
COSPAR 2012

9. COSPAR 2012
7th IPDA Steering Committee Meeting, July 11-13, 2012, Bangalore, India

10. Projects 2011-2012 PDS4 Prototype Project - S. Martinez, ESA
Registry Development - S. Hardman, NASA
PDAP Development and Coordination - J. Salgado, ESA; Y. Yamamoto, JAXA; N. Hirata, Univ of Aizu; Alain Sarkissian, IPSL/LATMOS; Michel Gangloff, CNES
IPDA Query Language - S. Hughes, NASA
Website Development - E. Law, NASA
Geometry - C. Acton, NASA
COSPA 2012

11. PDS4: Moving towards an International Archive and Infrastructure
Standards Structure (IPDA and Agency Level)
Data Object Model
Identify the existing subset of standards used by PDS/PSA which are
appropriate for internationalization; Collaboration with PDS improvements to its
data standards in PDS4
Develop a mechanism for management of the standards at an international
level (e.g., coordinated through the IPDA Archive Data Standards Project)
Align existing agency standards and processes with the internationalization
COSPAR 2012

12. Agency Testing of PDS4*
PDS is making a big effort to refine the information model. Major decisions made on the XML technologies (i.e. reusability, XML Schema 1.1 and the combination of XML Schema and Schematron) are considered a clear improvement to the PDS4 information model implementation.
Versions 7-8 of the XML Schemas address many of the key issues identified by the IPDA PDS4 project last year (e.g. define further restrictions on attributes/classes/types).
Some of the issues identified last year have been postponed by PDS for later releases (e.g. local data dictionaries, documentation) and therefore were not evaluated during these exercises.
Credit: Santa Martinez, ESA, IPDA PDS4 Project Lead
COSPAR 2012

13. Cross Agency Access, Registration and Search of Planetary Archives
Search Service supports the PDS and PDAP protocols enabling development of other portals and applications on this infrastructure.
Registered Objects:
Websites
Data Sets
Investigations, Instruments, etc.
Tools and Services
Search results include mission support pages and other more specific search interfaces.
See Poster B
COSPAR 2012

14. Example: PDS Search of PSA
Data sets and other results returned include products from NASA and PSA.
PSA data sets currently link directly to a PSA web-based interface.
COSPAR 2012

15. Remote Query Example Navigate to the API endpoint:
express”&return-type=xml
The following should appear in the browser:
<response>
<lst name="responseHeader">
<int name="status">0</int>
<int name="QTime">1</int>
<lst name="params">
<str name="term">"venus express"</str>
<str name="return-type">xml</str>
</lst>
<result name="response" numFound="114" start="0" maxScore=" ">
<doc>
<float name="score"> </float>
<str name="title">VENUS EXPRESS SKY/VENUS SPICAV 2 SOIR EXT2 V3.0</str> …
The “term” parameter is the equivalent of text-based search.
Parameters that were passed in the search criteria.
Number of results returned and the position in the result set.
COSPAR 2012

16. IPDA Endorsements at 2012 Meeting
Reviewed SPICE endorsement
July 2010 recommendation for agency adoption of SPICE (no change)
Recommendation to continue a geometry project to improve geometry specification (in future releases of PDS4)
Established endorsement of PDS4 data standards
Testing over the past year by many agencies supports movement forward
Move from cross-agency testing to early adoption for future missions (e.g, Bepi Columbo)
Supply results of testing back to PDS4 design teams

17. Projects 2012-2013 PDS4 Implementation - D. Heather, ESA
Registration and Search - S. Hardman NASA
ESA Registry Implementation - D. Heather, ESA
Tool Registration - T. Stein, Wash Univ
PDAP Core - J. Salgado, ESA
PDAP/PDS4 Integration - S. Hughes, NASA
Geometry - C. Acton, NASA
COSPAR 2012

18. Summary Excellent progress observed at the 7th IPDA Meeting
Excellent collaboration between IPDA and PDS regardng PDS4
Testing of PDS4 Standards
Interoperability between ESA and NASA with PDAP
Establishment of an IPDA registry
Cross Agency Search
The projects in 2013 continue to move IPDA towards a achieving the goal of building compatible planetary science archives and providing interoperability
COSPAR 2012

19. Next IPDA Meeting Date July 2013 Structure Steering Committee
Location: Hosted by CNES in Paris, France
COSPAR 2012

20. THANK YOU!
Questions?
COSPAR 2012