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Long term stability of atomic time scales

Published online by Cambridge University Press:  05 March 2015

G. Petit  and
F. Arias
G. Petit*
Affiliation:
Bureau International des Poids et Mesures 92312 Sèvres Cedex, France
F. Arias
Affiliation:
Bureau International des Poids et Mesures 92312 Sèvres Cedex, France
*
†E-mail: gpetit@bipm.org
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Abstract

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We review the stability and accuracy achieved by the reference atomic time scales TAI and TT(BIPM). We show that they presently are in the low 10−16 in relative value, based on the performance of primary standards, of the ensemble time scale and of the time transfer techniques. We consider how the 1 × 10−16 value could be reached or superseded and which are the present limitations to attain this goal.

Keywords

timereference systems
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 10 , Highlights H16: Highlights of Astronomy , August 2012 , pp. 209 - 210
Copyright
Copyright © International Astronomical Union 2015