
http://clockdev.usno.navy.mil/cgi-bin/wa.exe?A2=ind0009&L=leapsecs&F=lf&S=&P... reports that the following resolution was adopted by the IAU last month: The International Astronomical Union Recognising 1. that the definition of Coordinated Universal time (UTC) relies on the astronomical observation of the UT1 time scale in order to introduce leap seconds, 2. that the unpredictability of leap seconds affects modern communication and navigation systems, 3. that astronomical observations provide an accurate estimate of the secular deceleration of the Earth's rate of rotation, Recommends 1. that the IAU establish a Working Group reporting to Division 1 at the General Assembly in 2003 to consider the redefinition of UTC, 2. that this study discuss whether there is a requirement for leap seconds, the possibility of inserting leap seconds at pre-determined intervals, and the tolerance limits for UT1-UTC, and 3. that this study be undertaken in cooperation with the appropriate groups of the International Union of Radio Science (URSI), the International Telecommunications Union (ITU-R), the International Bureau for Weights and Measures (BIPM), and relevant navigational agencies.
participants (1)
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Paul Eggert