Chaterjee , Arundhati and Sharma , Suman and Banerjee , P. (2008) Time scale of NPLI: current status and future plan of improvement. Metrologia, 45 (6). S66-S73. ISSN 0026-1394

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The National Physical Laboratory, India (NPLI), is responsible for maintenance and development of the Indian Standard Time (IST) and also contributes through the GPS network to the generation of UTC coordinated by BIPM. Recently NPLI has made some special efforts to improve the uncertainty of UTC(NPLI) with respect to UTC. One basic clock ensemble algorithm is implemented to make the time scale of UTC(NPLI) by combining the intercomparison data of five caesium clocks. Some initial tests have been carried out to check the validity of this algorithm. The recent UTC- UTC(NPLI) values (shown in Circular T) and the corresponding frequency offset with respect to UTC have exhibited significant improvements. This paper describes these studies and presents the analysis of these observations.

Item Type: Article
Subjects: Instruments/ Instrumentation
Applied Physics/Condensed Matter
Depositing User: Ms Neetu Chandra
Date Deposited: 13 Apr 2017 08:09
Last Modified: 13 Apr 2017 08:09

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