| Date: | 2010-08-30 09:33:00 | |
| Sender: | Gérard Petit (IERS Conventions Center) <gpetit@bipm.org> | |
| Subject: | [SLR-Mail] No. 1906: updated IERS Conventions Chapters 5, 10, 11 | |
| Author: | Gérard Petit | |
| Content: | ******************************************************************************** SLR Electronic Mail 2010-08-30 09:33:00 UTC Message No. 1906 ******************************************************************************** Author: G=E9rard Petit (IERS Conventions Center) Subject: updated IERS Conventions Chapters 5, 10, 11 Information on the updates to the IERS Conventions The IERS Conventions Center informs of the following updates: Three chapters of the IERS Conventions have been updated on 27 August = 2010: Chapter 5 ”Transformation between the International Terrestrial = Reference System and Geocentric Celestial Reference System” see http://tai.bipm.org/iers/convupdt/convupdt_c5.html. Corrections entered on 23 July 2010 are cancelled. The text of the = chapter is changed in equation (16) and Table 5.2a to make it consistent with = the electronic versions of Table 5.2a and Table 5.2b and to the SOFA routine XY06. Chapter 10 ”General relativistic models for space-time coordinates and equations of motion” see http://tai.bipm.org/iers/convupdt/convupdt_c10.html. * The exact form of the TCG-TT relation is provided in equation (1). * The wording ”YYY-compatible” where YYY is a time coordinate = follows IAU RIFA recommendations. * An updated software XHF2002_IERS is provided for the TCB-TCG transformation and the information on other existing software is reformulated. * Some modifications in the text at the end of the section 10.2.=20 Chapter 11 ”General relativistic models for propagation” see http://tai.bipm.org/iers/convupdt/convupdt_c11.html. The wording ”YYY-compatible” where YYY is a time coordinate follows IAU = RIFA recommendations.=20 A few words changed e.g. in 11.2 to make the text compatible with all ”ranging techniques” or when needed by changes in other sections. Modifications do not concern the technical content and are NOT outlined = in the margin of the chapter. Gerard Petit and Brian Luzum IERS Conventions Center From: =?iso-8859-1?Q?G=E9rard_Petit?= ******************************************************************************** |