... Psrcat . ... Then select the correct version of tcs - check with local staff or look on the control-room whiteboard for this: . ... Select Pulsar, Expert mode and if desired an appropriate Recall state file (click on the arrow to browse). ... Select a schedule file (Sched file/Own). ... Data files are in PSRFITS format with extension .rf for pulsar files and .cf for calibration files. ... A complete record of all TCS operations and messages is recorded in the tcsgui.log files for each observing day....

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