please respond to matsakis.demetrios@usno.navy.mil

 by January 1, 2004

1. Name and Position

2. Contact information

3. URSI Commissions of specific interest to you

4. Please provide the approximate cost to your systems, and your systems' users, of incorporating the next leap second or any possible deletion of a second. If you feel the questions do not correctly parameterize your system or its users systems, please indicate a better formulation. Please ignore inflation and assume exchange rates remain constant.

a. Name of System

b. Brief Description of System

c. Hours of labor

d. Equipment purchase

e. Costs in terms of final product or system performance if the leap second or second-deletion is not correctly included

f. Costs in terms of final product or system performance to incorporate a leap second or second-deletion.

g. Has your system or its users ever applied the leap second incorrectly, and if so what percentage of the time?

5. Note that one current plan under consideration would halt new leap seconds after 2021. If it were decided to change the definition of UTC so that no leap seconds would be inserted after 2021, please provide the approximate costs to your systems, and your systems's users, of adjusting for such a change. If you feel the questions do not correctly parameterize your system or its users systems please indicate a better formulation. Please ignore inflation and assume exchange rates remain constant.

a. Name of System

b. Brief Description of System

c. Hours of Labor to make the adjustment

d. Equipment Purchase to make the adjustment

e. Costs in terms of final product or system performance if the adjustment is not correctly made

6. If it were decided to halt new leap seconds after a specified date other than 2021, is there an implementation date that would significantly affect the costs indicated in your response to question 5? If so, please provide the associated costs in today's dollars, ignoring inflation.

7. Please use this space to make any comments or provide any information you feel appropriate.

8. It is possible that we would like to publicly identify your system(s) or your response as relevant to the decision. In that case, do we have your permission to fully quote your reply?