... CentralProcessor 0.11 documentation . Utilities . The CASDA upload utility prepares artifacts for submission to the CSIRO ASKAP Science Data Archive (CASDA). ... Evaluation Pipeline Artifacts (any file format) . ... The measurement set is a directory, where CASDA requires a single file per artifact . ... The following example declares four artifacts to be uploaded to CASDA, one for each of the artifact types: image, source catalogue, measurement set and evaluation report. ...

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