Delta-DOR SIG:Report of the Fall 2007

Meeting

Heppenheim, GermanyOctober 5th, 2007

Roberto MaddèESA/ESOC

Roberto.Madde@esa.int

SEA Area MID-TERM REPORTSUMMARY TECHNICAL STATUS

1. Delta-DOR SIG

Goal: Standarising cross-support for Delta-DOR measurements – Organise a WG for that

Working Status: Active _X_ Idle ____

Summary progress: agreement reached on WG charter; definition of TOC for the books to be written

Progress since last meeting: WB finalised

Problems and Issues: none

status: OK CAUTION PROBLEM

Comment: Need to start a WG on the subject.

Agreements reached.

Executive Summary

The Charter for the proposed WG has been discussed and finalised

The TOC of the proposed Magenta and Green Books has been discussed and agreed; responsibilities and roles for the Magenta Book preparation have been distributed and agreed.

The support of 3 agencies to the proposed WG has been assessed (NASA and JAXA have to formally state their support)

Roles and responsibilities for the Magenta Book have been agreed

The schedule and milestones for the books preparation have been agreed

Suggestions coming from NASA, JAXA and ESA presentations have been collected and will be inserted in the coming books, as required

Summary of Goals and Deliverables

• Delta-DOR Operations White Book has been reviewed and completed, with the received RIDs.

• New deliverables have been spotted, if the SIg is turned into a WG:• A Magenta Book - The Proposed Recommended

Practice (Magenta Book) will address aspects of the technique that would require standardization in order to enable Delta-DOR interoperability among space agencies

• A Green Book - The Proposed Green Book will contain all the descriptive material which is needed, in order to introduce the technique

• Validation of inter-operability between the NASA Delta-DOR system and the ESA Delta-DOR system has continued.

• Plans for inter-operability between NASA and JAXA and ESA and JAXA have been drafted

Progress Achieved – agreed schedule

Date Milestone

October 2007 WG kick-off (if approved)

April 2008Draft “Delta-DOR recommended practice for cross support” Magenta

Book for the CCSDS 2008 Spring meeting

August 2008Revised draft “Delta-DOR recommended practice for cross support”

Magenta Book for Agency review

Fall 2008

Second issue of “Delta-DOR recommended practice for cross support” after Agency review for CCSDS 2008 Fall Meeting

Discussion on “Delta-DOR technical characteristics and performance” Green Book and work distribution

December 2008Finalised review and issue “Delta-DOR recommended practice for cross

support” Magenta Book

April 2009Draft “Delta-DOR technical characteristics and performance” Green Book

for CCSDS 2009 Spring meeting

July 2009Revised draft “Delta-DOR technical characteristics and performance”

Green Book

Fall 2009Finalised review and issue “Delta-DOR technical characteristics and

performance” Green Book for CCSDS 2009 Fall meeting

Progress Achieved – Magenta Book TOC

ESA will be the Editor of the 2 foreseen books Table of contents for the Magenta Book:

General introduction Introductory chapter, derived from current ch. 2 of the

WB End-to-end description, based on current ch. 3 of the

WB Interfaces description and references to existing/to be

updated Blue Books (RM) Configuration of the Delta-DOR measurement

Station and spacecraft parameters Orbit ephemeris parameters Scheduling Data transfer procedures Correlation process parameters Operational validation aspects

Interagency data exchange procedures Interoperability validation process Quasar catalogue implementation, validation and

maintenance

Progress Achieved – Green Book TOC

Draft table of contents of the Green Book: Overview of the process Theoretical background System rationale and trade-offs Description of existing systems Achievable performance Delta-DOR related techniques

Phase referencing Same Beam Interferometry

The table of contents will be finalised in the Fall 2008 Meeting

Roles and responsibilities will be defined in the Fall 2008 Meeting

Open Issues

The planned work can be done provided that the current SIG is turned into a WG

Risk Management Update

No risk has been highlighted Resources may be an issue, in the future

Cross Area WG / BOF Issues

Interactions with MOIMS, SLS and CSS are anticipated

However, concerning SLS interface, for the preparation of the proposed books, it is foreseen to: First discuss within the WG, including feedback with transponder, Ground station and spectrum management specialists

Later, discuss with SLS-RNG MOIMS-NAV: the current OEM and TDM formats

appear adequate for the SIG/WG scopes CSS: first a Common Data Format (CDF) may be

defined, within the WG, and then contacts can be set up