1. Radio Science PDS Function Report 25 March 2010 Dick Simpson Stanford University

2. Topics to Be Discussed What is Radio Science? Where and Who is Radio Science? What are they doing? What will they be doing?

3. What is PDS/RS? Use of propagating electromagnetic waves to explore, measure, and understand the universe (more narrowly, the solar system) planetary surface properties and mapping atmospheric/ionospheric structure, dynamics ring structure, dynamics, particle properties interplanetary plasma, solar corona spacecraft navigation, ephemeris development mass estimation, gravity models, interior structure surface/atmosphere volatile exchange radio emission plate tectonics, Earth rotation gravitational waves, relativity telecommunication, data management signal processing, radar imaging

4. Where/Who is Radio Science? 3+ People at Stanford - PI Len Tyler (~1% FTE) - Manager Dick Simpson (~30% FTE) Available for more work - System Software Analyst Ray Jackson (~5% FTE) - Administrative Support Several Networked Computers and a Telephone - None provided by PDS - Funded mostly by NASA/MEX Library of data, software, and documentation $50-180K/year

5. What Are They Doing? (1 of 6) Internal – Participate in MC meetings/telecons – Represent radio science community – Present issues of interest/concern re DSN, JPL, etc. – Records and documents Meeting minutes Policy statements (superseded data, ITAR) Definitions (archive status) Decadal Survey white paper Updates to Archiving Guides (PAG, APG)

6. What Are They Doing? (2 of 6) Internal (continued) – ‘Monthly’ standards telecons – Monthly MIWG telecons – Standards Change Requests (originate, review) – Reviewed PDS subscription service – RINGS, PPI Node Advisory meetings

7. What Are They Doing? (3 of 6) Internal (continued) – PDS 2010/PDS4 Reviewed PDS Level 1/2/3 Requirements Reviewed Draft Data Preparation Handbook Participated in – June 2009 design review – November 2009 data product prototyping exercise – Developing User/Science Requirements – Discussions of DOCUMENT archiving standards Recommended input/output formats to support – Reports, POP exercises, proposals

8. What Are They Doing? (4 of 6) Mission Support/Archiving – ODY RS/GRAV Archiving No Radio Science Team on Mars Odyssey Stanford captures radio tracking data for previous month Data available through PDS 30-60 days after acquisition Used for – orbit reconstruction – Time variable gravity field study (polar volatiles) – upper atmosphere drag studies – Assembled PHOENIX collection of MGS profiles for L. Tamppari – Assisted H. Gunnarsdottir in ODY BSR archive design

9. What Are They Doing? (5 of 6) Mission Support/Archiving – MESS RS/GRAV Review Two phases (terminated by GEO before Phase 1 completed) Open issues – Status of operational labels on raw tracking files – Addition of new data type (open-loop data, purpose?) – High level descriptions of archive (AAREADME.TXT, DATASET.CAT) – MRO RS/GRAV Review Similar issues to MESS, but mostly completed successfully

10. What Are They Doing? (6 of 6) Mission Support/Archiving (continued) – ROSETTA RSI archive review (e-mail) – JUNO draft SIS reviews

11. What Will They Be Doing? Continue current activities Mission Support – LRO LOLA archive review? – GRAIL archive review? – Others? PDS 2010/PDS4 – Test and prototype Moving PDS ops to new PDS computer Restoration (to PDS3 or PDS4?)