Onsala Space Observatory – IVS Network Station Activities during 2014

Report, 2015

We participated in 39 IVS sessions, includ- ing CONT14. Eleven out of the initially planned ses- sions could not be observed due to the installation of a new radome for the 20-m radio telescope. As in the previous six years, we used several of the sessions that involved both Onsala and Tsukuba to perform ultra- rapid UT1-UTC sessions together with our colleagues in Tsukuba. This included the complete CONT14 cam- paign where near real-time UT1-UTC on the baseline Onsala—Tsukuba could be determined. The procure- ment of the telescopes for the Onsala Twin Telescopes was started in the summer of 2014. The contract to buy two VGOS radio telescopes was signed at the end of the year.