[LEAPSECS] Official Announcement of Conference on UTC Timescale

From: <matsakis.demetrios_at_USNO.NAVY.MIL>
Date: Tue Jan 7 08:18:01 2003

This email has two attachments, giving the official meeting announcement and
the meeting's draft agenda in Word format.



Immediate below this message are plain-ascii versions of the two
attachments, separated by asterisks.



The two sections of text after those, again separated by asterisks, are
"copy and paste" versions of the same two attachments. These have special
characters that could confuse some email-reading software.



I would encourage those of you who feel strongly on this issue to attend the
meeting.


- Demetrios Matsakis


P.S. Our listserv system has once again exhibited a mysterious flaw in which
contributory emails are not received. The solution was to restart the
server. If you have attempted to email anything to leapsecs in the last few
weeks, please resend. If you continue to experience troubles, please
contact me directly at dnm_at_usno.navy.mil <mailto:dnm_at_usno.navy.mil> .



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**************************************************************

Press Release

A Colloquium on the UTC Timescale will be held at Istituto Elettrotecnico
Nazionale G.

Ferraris (IEN) in Torino, Italy from 28-30 May 2003. The purpose of the
colloquium is to

discuss the future of the UTC timescale.

As a result of issues raised by sector members of the ITU-R and a letter
from the Director of the

Bureau International des Poids et Mesures (BIPM) to the Secretary General of
the ITU, a new

question, ITU-R 236/7 (2000) "The Future of the UTC Timescale", was
generated by ITU-R

Study Group 7 (Science Services) Working Party 7A (Standard Frequency and
Time Signal

Services). The question considers the future definition and use of
Coordinated Universal Time

(UTC) in the ITU-R Recommendations.

Any major change to the UTC timescale as defined in the current
recommendations has a

potentially significant impact on synchronization of communications networks
and navigation

systems and time distribution performance. Accordingly, Study Group 7
Working Party 7A has

established a Special Rapporteur Group (SRG) to specifically address the
future of the leap

second and related issues.

The SRG has held several coordination and technical exchange meetings to
generate, analyze

and discuss alternative approaches to reduce or eliminate the operational
impact of the leap

second. The work to date has produced a consensual opinion that the SRG
wants to present and

discuss with interested and representative parties. In support of that
purpose the SRG has

organized a concluding Colloquium for deliberating and drafting a
recommendation to the ITU-

R.

Invited presentations will be made by distinguished representatives in the
areas of International

Timekeeping, Navigation, Earth Rotation, Telecommunications and Internet
Timing. These

areas could be impacted by changes in the UTC Time Scale. In addition,
contributed

presentations will be sought to insure that additional viewpoints would be
expressed.

Additional information can be obtained from Ron Beard, Chairperson of the
SRG

(Ronald.Beard_at_nrl.navy.mil) and Bill Klepczynski, Secretary of the SRG

(wklepczy_at_comcast.net).

Press Release January 3, 2003 Press Release

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***************************************************************

ITU-R Special Rapporteur Group (SRG)

Colloquium on the UTC Time Scale

Istituto Elettrotecnico Nazionale G Ferraris (IEN)

Torino, Italy

28-30 May 2003

Introduction/Purpose

As a result of issues raised by sector members and a letter from the
Director of the Bureau

International des Poids et Mesures (BIPM) to the Secretary General of the
ITU, a new question,

ITU-R 236/7 (2000) "The Future of the UTC Timescale", was generated by ITU-R
Study Group

7 (Science Services) Working Party 7A (Standard Frequency and Time Signal
Services). The

question considers the future definition and use of Coordinated Universal
Time (UTC) in the

ITU-R Recommendations.

Any major change to the UTC timescale as defined in the current
recommendations has a

potentially significant impact on network synchronization and time
distribution performance.

Accordingly, Study Group 7 Working Party 7A has established a Special
Rapporteur Group

(SRG) to specifically address the future of the leap second and related
issues.

The SRG has held several coordination and technical exchange meetings to
generate, analyze

and discuss alternative approaches to reduce or eliminate the operational
impact of the leap

second. The work to date has produced within the SRG a consensual opinion
that the SRG

wishes to present and discuss with representative parties of the scientific,
standards and

telecommunications agencies and groups. For that purpose the SRG is
organizing a Colloquium

for deliberating recommendations to the ITU-R.

Invited presentations will be made by distinguished representatives in areas
that could be

impacted by changes in the UTC Time Scale. In addition, contributed
presentations will be

sought to insure that additional viewpoints would be expressed.

Preliminary Agenda

Day 1 - 28 MAY 03

Welcome by Prof. Bava, President of IEN

1. Introduction - Mr. R. Beard, NRL

The charter, purpose and activities of the SRG to date and the detailed
agenda and activities

of this meeting

2. Astronomical Background - Bernard Guinot

Astronomical history and rationale for the current UTC leap second scheme

3. ITU-R Background - Prof. S. Leschiutta, CCTF

International Telecommunications Union, Radio Branch history/rationale for
the current

UTC leap second scheme

4. Considerations for International Timekeeping - Dr. T. Quinn, BIPM

a) Scientific/International issues

b) Operational impacts

c) Financial aspects (cost of changes and other commercial impacts)

Contributed papers

5. Navigation Issues (radio, satellite, GNSS, celestial) - TBD (GLONASS?)

a) Technical issues

b) Operational impacts

c) Financial aspects (cost of changes and other commercial impacts)

Contributed papers

6. Earth Rotation Issues - Dr. D. Gambis, IERS

a) Technical Issues

b) Operational impacts

c) Financial aspects (cost of changes)

Contributed papers

7. Telecommunications Issues - Ms. L. Orr, DISA

a) Technical issues

b) Operational impacts

c) Financial aspects (costs and other commercial impacts or opportunities)

Contributed Papers

8. Internet Timing Issues and Time Stamp Authority - Dr. J. Levine, NIST

d) Technical issues

e) Operational impacts

f) Financial aspects (costs and other commercial impacts or opportunities)

Contributed Papers

9. Presentation of SRG Opinions and Recommendation(s) - Mr. R. Beard

Detailed presentation of SRG Opinions and Recommendation(s)

10. Roundtable discussion

Discussion and Consideration of issues raised on proposed recommendations.

11. Summary of Colloquium

Summarize issues and discussion on Recommendation(s) for Proceedings and

Documentation for coordination with interested agencies and scientific
bodies

Adjourn the General Meeting



Day 3 - 15 NOV 02

SRG Executive Meeting (by invitation)

Considerations on preparing Summary of Results of the Colloquium

Finalization of Recommendation(s) to the ITU-R

Adjournment

DRAFT 3 January 2003 DRAFT

****************************************************************************
****************************************************************************
********************************



Press Release



A Colloquium on the UTC Timescale will be held at Istituto Elettrotecnico
Nazionale G. Ferraris (IEN) in Torino, Italy from 28-30 May 2003. The
purpose of the colloquium is to discuss the future of the UTC timescale.



As a result of issues raised by sector members of the ITU-R and a letter
from the Director of the Bureau International des Poids et Mesures (BIPM) to
the Secretary General of the ITU, a new question, ITU-R 236/7 (2000) "The
Future of the UTC Timescale", was generated by ITU-R Study Group 7 (Science
Services) Working Party 7A (Standard Frequency and Time Signal Services).
The question considers the future definition and use of Coordinated
Universal Time (UTC) in the ITU-R Recommendations.



Any major change to the UTC timescale as defined in the current
recommendations has a potentially significant impact on synchronization of
communications networks and navigation systems and time distribution
performance. Accordingly, Study Group 7 Working Party 7A has established a
Special Rapporteur Group (SRG) to specifically address the future of the
leap second and related issues.



The SRG has held several coordination and technical exchange meetings to
generate, analyze and discuss alternative approaches to reduce or eliminate
the operational impact of the leap second. The work to date has produced a
consensual opinion that the SRG wants to present and discuss with interested
and representative parties. In support of that purpose the SRG has
organized a concluding Colloquium for deliberating and drafting a
recommendation to the ITU-R.



Invited presentations will be made by distinguished representatives in the
areas of International Timekeeping, Navigation, Earth Rotation,
Telecommunications and Internet Timing. These areas could be impacted by
changes in the UTC Time Scale. In addition, contributed presentations will
be sought to insure that additional viewpoints would be expressed.



Additional information can be obtained from Ron Beard, Chairperson of the
SRG (Ronald.Beard_at_nrl.navy.mil) and Bill Klepczynski, Secretary of the SRG (
<mailto:wklepczy_at_comcast.net> wklepczy_at_comcast.net).



****************************************************************************
******************************************


ITU-R Special Rapporteur Group (SRG)


Colloquium on the UTC Time Scale





Istituto Elettrotecnico Nazionale G Ferraris (IEN)


 Torino, Italy




28-30 May 2003




Introduction/Purpose




As a result of issues raised by sector members and a letter from the
Director of the Bureau International des Poids et Mesures (BIPM) to the
Secretary General of the ITU, a new question, ITU-R 236/7 (2000) "The Future
of the UTC Timescale", was generated by ITU-R Study Group 7 (Science
Services) Working Party 7A (Standard Frequency and Time Signal Services).
The question considers the future definition and use of Coordinated
Universal Time (UTC) in the ITU-R Recommendations.



Any major change to the UTC timescale as defined in the current
recommendations has a potentially significant impact on network
synchronization and time distribution performance. Accordingly, Study Group
7 Working Party 7A has established a Special Rapporteur Group (SRG) to
specifically address the future of the leap second and related issues.



The SRG has held several coordination and technical exchange meetings to
generate, analyze and discuss alternative approaches to reduce or eliminate
the operational impact of the leap second. The work to date has produced
within the SRG a consensual opinion that the SRG wishes to present and
discuss with representative parties of the scientific, standards and
telecommunications agencies and groups. For that purpose the SRG is
organizing a Colloquium for deliberating recommendations to the ITU-R.



Invited presentations will be made by distinguished representatives in areas
that could be impacted by changes in the UTC Time Scale. In addition,
contributed presentations will be sought to insure that additional
viewpoints would be expressed.



 Preliminary Agenda




Day 1 - 28 MAY 03





Welcome by Prof. Bava, President of IEN





1. Introduction - Mr. R. Beard, NRL




The charter, purpose and activities of the SRG to date and the detailed
agenda and activities of this meeting




2. Astronomical Background - Bernard Guinot




Astronomical history and rationale for the current UTC leap second scheme




3. ITU-R Background - Prof. S. Leschiutta, CCTF




International Telecommunications Union, Radio Branch history/rationale for
the current UTC leap second scheme




4. Considerations for International Timekeeping - Dr. T. Quinn, BIPM




a) Scientific/International issues

b) Operational impacts

c) Financial aspects (cost of changes and other commercial impacts)




Contributed papers





5. Navigation Issues (radio, satellite, GNSS, celestial) - TBD (GLONASS?)




a) Technical issues

b) Operational impacts

c) Financial aspects (cost of changes and other commercial impacts)




Contributed papers





6. Earth Rotation Issues - Dr. D. Gambis, IERS




a) Technical Issues

b) Operational impacts

c) Financial aspects (cost of changes)




Contributed papers





7. Telecommunications Issues - Ms. L. Orr, DISA




a) Technical issues

b) Operational impacts

c) Financial aspects (costs and other commercial impacts or
opportunities)




Contributed Papers





8. Internet Timing Issues and Time Stamp Authority - Dr. J. Levine, NIST




d) Technical issues

e) Operational impacts

f) Financial aspects (costs and other commercial impacts or
opportunities)




Contributed Papers





9. Presentation of SRG Opinions and Recommendation(s) - Mr. R. Beard




Detailed presentation of SRG Opinions and Recommendation(s)




10. Roundtable discussion




Discussion and Consideration of issues raised on proposed recommendations.




11. Summary of Colloquium




Summarize issues and discussion on Recommendation(s) for Proceedings and
Documentation for coordination with interested agencies and scientific
bodies




Adjourn the General Meeting







Day 3 - 15 NOV 02





SRG Executive Meeting (by invitation)




Considerations on preparing Summary of Results of the Colloquium




Finalization of Recommendation(s) to the ITU-R





Adjournment







Received on Tue Jan 07 2003 - 08:18:01 PST

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