<html><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; ">FYI (although I suppose most here are subscribed to these messages :-)<div><div><br><div>Begin forwarded message:</div><br class="Apple-interchange-newline"><blockquote type="cite"><div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; "><font face="Helvetica" size="4" color="#000000" style="font: 13.0px Helvetica; color: #000000"><b>From: </b></font><font face="Helvetica" size="4" style="font: 13.0px Helvetica"><<a href="mailto:central_bureau@iers.org">central_bureau@iers.org</a>></font></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; "><font face="Helvetica" size="4" color="#000000" style="font: 13.0px Helvetica; color: #000000"><b>Date: </b></font><font face="Helvetica" size="4" style="font: 13.0px Helvetica">May 5, 2009 6:47:29 AM GMT-07:00</font></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; "><font face="Helvetica" size="4" color="#000000" style="font: 13.0px Helvetica; color: #000000"><b>To: </b></font><font face="Helvetica" size="4" style="font: 13.0px Helvetica"><<a href="mailto:messages@iers.org">messages@iers.org</a>></font></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; "><font face="Helvetica" size="4" color="#000000" style="font: 13.0px Helvetica; color: #000000"><b>Subject: </b></font><font face="Helvetica" size="4" style="font: 13.0px Helvetica"><b>IERS Message No. 144: New Bulletin B</b></font></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; min-height: 14px; "><br></div> </div><div>************************************************************************<br>IERS Message No. 144 May 05, 2009<br>************************************************************************<br><br><br>New Bulletin B<br><br><br>Dear Bulletin B users<br><br>Bulletin B made by the IERS EOP Centre is more than 20 years old.<br>Following a survey which was made recently among the community, we are<br>proposing a new presentation. The new Bulletin B and its content<br>description are available on<br><a href="ftp://hpiers.obspm.fr/iers/bul/bulb_new/bulletinb.dat">ftp://hpiers.obspm.fr/iers/bul/bulb_new/bulletinb.dat</a> <br>and<br><a href="ftp://hpiers.obspm.fr/iers/bul/bulb_new/bulletinb.pdf">ftp://hpiers.obspm.fr/iers/bul/bulb_new/bulletinb.pdf</a><br><br><br>It contains:<br><br>1 - DAILY FINAL VALUES AND PRELIMINARY VALUES OF x, y, UT1-UTC, dX, dY<br>and their respective uncertainties. Angular unit is milliarcsecond<br>(mas), time unit is millisecond (ms). <br><br>2 - DAILY SMOOTHED VALUES OF CELESTIAL POLE OFFSETS (dPsi1980, dEps1980)<br>with respect to IAU 1980 precession-nutation model and their<br>uncertainties.<br><br>3 - EARTH ANGULAR VELOCITY : DAILY VALUES OF LOD, OMEGA AT 0hUTC<br> LOD : Excess of the Length of day - 86400 s TAI <br> OMEGA : Earth angular velocity <br><br>4 - INFORMATION ON TIME SCALES: TAI-UTC, leap second announcements<br><br>5 - SUMMARY OF CONTRIBUTED EARTH ORIENTATION PARAMETERS SERIES<br>This section gives statistics in term of formal errors and WRMS of the<br>combined Technique Centres solutions with respect to the combined<br>solution as well as individual series. The period covered is that one of<br>Bulletin B. <br><br><br>In order to allow users to modify their uploading procedures, the<br>previous Bulletin B will still be available under its regular<br>presentation until January 1, 2010 on:<br>ftp://hpiers.obspm.fr/iers/bul/bulb/bulletinb.dat<br><br>Note that in the new version of Bulletin B, C02 and C03 series which<br>became obsolete are discontinued.<br><br>We hope these changes will not bring any disagreement.<br><br>If any question or requirements contact: Daniel.gambis@obspm.fr or<br>Christian.bizouard@obspm.fr.<br><br>Best regards<br><br>Daniel Gambis and Christian Bizouard<br><br><br>************************************************************************<br>IERS Messages are edited and distributed by the IERS Central Bureau.<br>To subscribe or unsubscribe, please write to <central_bureau@iers.org>.<br>Archives: http://www.iers.org/iers/publications/messages/<br>************************************************************************<br></div></blockquote></div><br></div></body></html>