<html><body><div style="font-family: arial, helvetica, sans-serif; font-size: 12pt; color: #000000"><div data-marker="__QUOTED_TEXT__"><div class="WordSection1"><p class="MsoPlainText"><span class="SpellE"><span size="2" face="Calibri" data-mce-style="font-family: Calibri; font-size: small;" style="font-family: Calibri; font-size: small;"><span style="font-size: 11.0pt;" data-mce-style="font-size: 11.0pt;">Author</span></span></span>: Gérard Petit (IERS Conventions Center)</p><p class="MsoNormal"><span size="2" color="#1f497d" face="Calibri" data-mce-style="color: #1f497d; font-family: Calibri; font-size: small;" style="color: #1f497d; font-family: Calibri; font-size: small;"><span style="font-size: 11.0pt; mso-ascii-font-family: Calibri; mso-ascii-theme-font: minor-latin; mso-hansi-font-family: Calibri; mso-hansi-theme-font: minor-latin; mso-bidi-font-family: 'Times New Roman'; mso-bidi-theme-font: minor-bidi; color: #1f497d; mso-themecolor: dark2;" data-mce-style="font-size: 11.0pt; mso-ascii-font-family: Calibri; mso-ascii-theme-font: minor-latin; mso-hansi-font-family: Calibri; mso-hansi-theme-font: minor-latin; mso-bidi-font-family: 'Times New Roman'; mso-bidi-theme-font: minor-bidi; color: #1f497d; mso-themecolor: dark2;"> </span></span></p><p class="MsoPlainText"><span size="2" face="Calibri" data-mce-style="font-family: Calibri; font-size: small;" style="font-family: Calibri; font-size: small;"><span lang="EN-US" style="font-size: 11.0pt; mso-ansi-language: EN-US;" data-mce-style="font-size: 11.0pt; mso-ansi-language: EN-US;">Information on the updates to the IERS Conventions (2010)</span></span></p><p class="MsoPlainText"><span size="2" face="Calibri" data-mce-style="font-family: Calibri; font-size: small;" style="font-family: Calibri; font-size: small;"><span lang="EN-US" style="font-size: 11.0pt; mso-ansi-language: EN-US;" data-mce-style="font-size: 11.0pt; mso-ansi-language: EN-US;"> </span></span></p><p class="MsoPlainText"><span size="2" face="Calibri" data-mce-style="font-family: Calibri; font-size: small;" style="font-family: Calibri; font-size: small;"><span lang="EN-US" style="font-size: 11.0pt; mso-ansi-language: EN-US;" data-mce-style="font-size: 11.0pt; mso-ansi-language: EN-US;">The IERS Conventions Center informs of the following updates:</span></span></p><p class="MsoPlainText"><span size="2" face="Calibri" data-mce-style="font-family: Calibri; font-size: small;" style="font-family: Calibri; font-size: small;"><span lang="EN-US" style="font-size: 11.0pt; mso-ansi-language: EN-US;" data-mce-style="font-size: 11.0pt; mso-ansi-language: EN-US;"> </span></span></p><p class="MsoPlainText"><b><span size="2" face="Calibri" data-mce-style="font-family: Calibri; font-size: small;" style="font-family: Calibri; font-size: small;"><span lang="EN-US" style="font-size: 11.0pt; mso-ansi-language: EN-US; font-weight: bold;" data-mce-style="font-size: 11.0pt; mso-ansi-language: EN-US; font-weight: bold;">19 June 2015</span></span></b></p><p class="MsoNormal" style="mso-margin-top-alt: auto; mso-margin-bottom-alt: auto;" data-mce-style="mso-margin-top-alt: auto; mso-margin-bottom-alt: auto;"><span size="2" face="Calibri" data-mce-style="font-family: Calibri; font-size: small;" style="font-family: Calibri; font-size: small;"><span lang="EN-US" style="font-size: 11.0pt; mso-ansi-language: EN-US;" data-mce-style="font-size: 11.0pt; mso-ansi-language: EN-US;">Chapter7 " Displacements of reference points " has been updated, see details in </span></span><span size="2" data-mce-style="font-size: small;" style="font-size: small;"><span style="font-size: 10.0pt;" data-mce-style="font-size: 10.0pt;"><a href="http://tai.bipm.org/iers/convupdt/convupdt_c7.html" target="_blank" data-mce-href="http://tai.bipm.org/iers/convupdt/convupdt_c7.html"><span lang="EN-US" style="mso-ansi-language: EN-US;" data-mce-style="mso-ansi-language: EN-US;">http://tai.bipm.org/iers/convupdt/convupdt_c7.html</span></a></span></span><span style="mso-ansi-language: EN-US;" data-mce-style="mso-ansi-language: EN-US;"> <span lang="EN-US">. </span></span></p><p style="color: #000000; font-family: arial, helvetica, sans-serif; font-size: 16px; font-variant: normal; letter-spacing: normal; line-height: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: #ffffff; margin: 0px;" data-mce-style="color: #000000; font-family: arial, helvetica, sans-serif; font-size: 16px; font-variant: normal; letter-spacing: normal; line-height: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: #ffffff; margin: 0px;">The main changes are:<br></p><ul type="disc"><li class="MsoNormal" style="mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; mso-list: l0 level1 lfo1; tab-stops: list 36.0pt;" data-mce-style="mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; mso-list: l0 level1 lfo1; tab-stops: list 36.0pt;"><span size="2" face="Calibri" data-mce-style="font-family: Calibri; font-size: small;" style="font-family: Calibri; font-size: small;"><span lang="EN-US" style="font-size: 11.0pt; mso-fareast-font-family: 'Times New Roman'; mso-ansi-language: EN-US;" data-mce-style="font-size: 11.0pt; mso-fareast-font-family: 'Times New Roman'; mso-ansi-language: EN-US;">Modifications to account for the next leap second to occur June 30, 2015.</span></span></li><li class="MsoNormal" style="mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; mso-list: l0 level1 lfo1; tab-stops: list 36.0pt;" data-mce-style="mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; mso-list: l0 level1 lfo1; tab-stops: list 36.0pt;"><span size="2" face="Calibri" data-mce-style="font-family: Calibri; font-size: small;" style="font-family: Calibri; font-size: small;"><span lang="EN-US" style="font-size: 11.0pt; mso-fareast-font-family: 'Times New Roman'; mso-ansi-language: EN-US;" data-mce-style="font-size: 11.0pt; mso-fareast-font-family: 'Times New Roman'; mso-ansi-language: EN-US;">Corrections of errors.</span></span></li><li class="MsoNormal" style="mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; mso-list: l0 level1 lfo1; tab-stops: list 36.0pt;" data-mce-style="mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; mso-list: l0 level1 lfo1; tab-stops: list 36.0pt;"><span size="2" face="Calibri" data-mce-style="font-family: Calibri; font-size: small;" style="font-family: Calibri; font-size: small;"><span lang="EN-US" style="font-size: 11.0pt; mso-fareast-font-family: 'Times New Roman'; mso-ansi-language: EN-US;" data-mce-style="font-size: 11.0pt; mso-fareast-font-family: 'Times New Roman'; mso-ansi-language: EN-US;">Introduction of the new version 2015 of the IERS Conventional Mean Pole, realized by a provided subroutine.</span></span></li></ul><p style="color: #000000; font-family: arial, helvetica, sans-serif; font-size: 16px; font-variant: normal; letter-spacing: normal; line-height: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: #ffffff; margin: 0px;" data-mce-style="color: #000000; font-family: arial, helvetica, sans-serif; font-size: 16px; font-variant: normal; letter-spacing: normal; line-height: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: #ffffff; margin: 0px;"><span style="font-family: Calibri; font-size: small;" data-mce-style="font-family: Calibri; font-size: small;"><span style="font-size: 11pt;" data-mce-style="font-size: 11.0pt; mso-ansi-language: EN-US;"><span style="color: #000000; font-family: arial, helvetica, sans-serif; font-size: 16px; font-variant: normal; letter-spacing: normal; line-height: normal; orphans: auto; text-align: left; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: #ffffff; float: none; display: inline !important;" data-mce-style="color: #000000; font-family: arial, helvetica, sans-serif; font-size: 16px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: auto; text-align: left; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: #ffffff; display: inline !important; float: none;">The USNO web site </span><a href="http://maia.usno.navy.mil/conv2010/convupdt.html" style="font-family: arial, helvetica, sans-serif; font-size: 16px; font-variant: normal; letter-spacing: normal; line-height: normal; orphans: auto; text-align: left; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: #ffffff;" data-mce-href="http://maia.usno.navy.mil/conv2010/convupdt.html" data-mce-style="font-family: arial, helvetica, sans-serif; font-size: 16px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: auto; text-align: left; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: #ffffff;">http://maia.usno.navy.mil/conv2010/convupdt.html</a><span style="color: #000000; font-family: arial, helvetica, sans-serif; font-size: 16px; font-variant: normal; letter-spacing: normal; line-height: normal; orphans: auto; text-align: left; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: #ffffff; float: none; display: inline !important;" data-mce-style="color: #000000; font-family: arial, helvetica, sans-serif; font-size: 16px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: auto; text-align: left; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: #ffffff; display: inline !important; float: none;"> is similarly updated.</span></span></span></p><p class="MsoPlainText">Gérard Petit and Brian Luzum<br></p><p class="MsoPlainText"><span size="2" face="Calibri" data-mce-style="font-family: Calibri; font-size: small;" style="font-family: Calibri; font-size: small;"><span style="font-size: 11.0pt;" data-mce-style="font-size: 11.0pt;">IERS Conventions Center</span></span></p><p class="MsoNormal"><span size="2" face="Calibri" data-mce-style="font-family: Calibri; font-size: small;" style="font-family: Calibri; font-size: small;"><span style="font-size: 11.0pt;" data-mce-style="font-size: 11.0pt;"> </span></span>----------------------------------------</p><p class="MsoNormal"><span size="2" color="#1f497d" face="Times New Roman" data-mce-style="color: #1f497d; font-family: 'Times New Roman'; font-size: small;" style="color: #1f497d; font-family: 'Times New Roman'; font-size: small;"><span style="font-size: 10.0pt; font-family: 'Times New Roman','serif'; mso-fareast-font-family: Calibri; color: #1f497d; mso-themecolor: dark2; mso-fareast-language: FR; mso-no-proof: yes;" data-mce-style="font-size: 10.0pt; font-family: 'Times New Roman','serif'; mso-fareast-font-family: Calibri; color: #1f497d; mso-themecolor: dark2; mso-fareast-language: FR; mso-no-proof: yes;">Gérard Petit<br>Time department, BIPM<br>Address: Pavillon de Breteuil<br> 92312 Sèvres FRANCE<br>Phone: (33)1-45077067<br>FAX: (33)1-45077059<br>E-mail: </span></span><a href="mailto:gpetit@bipm.org" target="_blank" data-mce-href="mailto:gpetit@bipm.org"><span style="mso-bookmark: _MailAutoSig;" data-mce-style="mso-bookmark: _MailAutoSig;"><span size="2" face="Times New Roman" data-mce-style="font-family: 'Times New Roman'; font-size: small;" style="font-family: 'Times New Roman'; font-size: small;"><span style="font-size: 10.0pt; font-family: 'Times New Roman','serif'; mso-fareast-font-family: Calibri; mso-fareast-language: FR; mso-no-proof: yes;" data-mce-style="font-size: 10.0pt; font-family: 'Times New Roman','serif'; mso-fareast-font-family: Calibri; mso-fareast-language: FR; mso-no-proof: yes;">gpetit@bipm.org</span></span></span><span style="mso-bookmark: _MailAutoSig;" data-mce-style="mso-bookmark: _MailAutoSig;"></span></a><span style="mso-bookmark: _MailAutoSig;" data-mce-style="mso-bookmark: _MailAutoSig;"><span size="2" color="#1f497d" face="Times New Roman" data-mce-style="color: #1f497d; font-family: 'Times New Roman'; font-size: small;" style="color: #1f497d; font-family: 'Times New Roman'; font-size: small;"><span style="font-size: 10.0pt; font-family: 'Times New Roman','serif'; mso-fareast-font-family: Calibri; color: #1f497d; mso-themecolor: dark2; mso-fareast-language: FR; mso-no-proof: yes;" data-mce-style="font-size: 10.0pt; font-family: 'Times New Roman','serif'; mso-fareast-font-family: Calibri; color: #1f497d; mso-themecolor: dark2; mso-fareast-language: FR; mso-no-proof: yes;"> </span></span></span><span style="mso-bookmark: _MailAutoSig;" data-mce-style="mso-bookmark: _MailAutoSig;"></span><span color="#1f497d" data-mce-style="color: #1f497d;" style="color: #1f497d;"><span style="mso-ascii-font-family: Calibri; mso-ascii-theme-font: minor-latin; mso-hansi-font-family: Calibri; mso-hansi-theme-font: minor-latin; mso-bidi-font-family: 'Times New Roman'; mso-bidi-theme-font: minor-bidi; color: #1f497d; mso-themecolor: dark2;" data-mce-style="mso-ascii-font-family: Calibri; mso-ascii-theme-font: minor-latin; mso-hansi-font-family: Calibri; mso-hansi-theme-font: minor-latin; mso-bidi-font-family: 'Times New Roman'; mso-bidi-theme-font: minor-bidi; color: #1f497d; mso-themecolor: dark2;"></span></span></p></div><br></div></div></body></html>