************************************************************************ IERS Message No. 360 September 14, 2018 ************************************************************************ IAU Resolutions on ITRS and ICRS3 At the General Assembly of the International Astronomical Union (IAU) on August 30, 2018, two resolutions related to the work of the IERS were accepted by the participating members: Resolution B1 on "Geocentric and International Terrestrial Reference Systems and Frames" recommends that the International Terrestrial Reference System (ITRS) be adopted as the preferred Geocentric Terrestrial Reference System (GTRS) for scientific and technical applications. Resolution B2 on "The Third Realization of the International Celestial Reference Frame" resolves that, as from 1 January 2019, the fundamental realization of the International Celestial Reference System (ICRS) shall be the Third Realization of the International Celestial Reference Frame (ICRF3). The complete texts of these resolutions are available at https://www.iau.org/news/pressreleases/detail/iau1810/ . ************************************************************************ IERS Messages are edited and distributed by the IERS Central Bureau. If not stated otherwise, the IERS is only the distributor of the message and is not responsible for its content. To submit texts for distribution and to subscribe or unsubscribe, please write to . Archives: http://www.iers.org/Messages/ ************************************************************************