INRIM have submitted data from their Yb optical lattice clock, collected prior to the start of the ROCIT project, to the BIPM. Following approval from the CCTF Working Group on Primary and Secondary Frequency Standards, this data appeared in Circular T no. 383 (November 2019) and was used for TAI steering.… Read More


ROCIT partner UMK is pleased to announce the upcoming Autumn School on “Clocks, Cavities, and Fundamental Physics”, which will take place at the Institute of Physics, Nicolaus Copernicus University in Torun, Poland, from 15th – 20th September 2019. The school welcomes students and postdocs from all over the world, and will focus on experiments and… Read More


On 5th – 6th June 2019, NPL welcomed representatives from all but one of the partner organisations to the ROCIT kick-off meeting. Based on the productive discussions that took place over the course of the two-day meeting, we are looking forward to a fruitful collaboration!  … Read More


Two members of our consortium gave invited talks during the opening session of CLEO 2019. Project coordinator Helen Margolis from NPL spoke about ‘Optical clocks: from International timekeeping to gravity potential measurement’, immediately followed by Tanja Mehlstäubler from LUH on ‘Ultrastable optical atomic clocks for geodesy’. As part of these presentations, both Helen and Tanja… Read More


The ROCIT project started on 1 May 2019. A summary of the work to be carried out is available here.… Read More


An introduction to the ROCIT project was presented at the annual meeting of the EURAMET Technical Committee for Time and Frequency, held at NPL, UK, from 7 – 8 March 2019.… Read More