Next: The Schedule File Up: THE SCHED USER MANUAL Version Previous: Satellite Tracking Contents . This chapter covers the main input files that SCHED reads. ... See the SCHED Input and Output Files section of this manual for brief descriptions of the files and pointers to the standard versions. ... Summary List of SCHED Parameters . ... List of Frequency File Parameters . Setup Files . Standard Setup Files . ... Summary List of Setup File Parameters . Details of Setup File Parameters . ...

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