... You are here: start €Ё difx €Ё difx_monitor . ... difx:difx_monitor . ... Clients . ... To allow multiple clients to simultaneously receive this monitoring data, a monitor_server can be run which receives a copy of ALL visibilities and allows multiple clients to connect. The clients request which of the visibilities they require and monitor_server only sends on the products required (so e.g. a client can be run over a moderately slow link if it only requires a handful of products). ...

metrologia The leap second: its history and possible future R. A. Nelson, D. D. McCarthy , S. Malys, J. Levine, B. Guinot, H. F. Fliegel , R. L. Beard and T. R. Bartholome w Abstract. This paper reviews the theoretica l motivatio n for the leap second in the context of the historica l evolutio n of time measurement . Th e periodic insertio n of a leap second step into th e scale of Coordinate d Universal Time (UTC) necessitates frequent changes in comple x timekeepin g systems an d is currentl y th e