From atomic clocks to coordinate times

Details From atomic clocks to coordinate times From atomic clocks to coordinate times

Aug 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006iaujd..16e..21p&link_type=abstract

Nomenclature, Precession and New Models in Fundamental Astronomy, 26th meeting of the IAU, Joint Discussion 16, 22-23 August 200

Astronomy and Astrophysics

Astronomy

Scientific paper

The IAU'1991 Resolution A4, complemented by IAU'2000 Resolution B1.3-4, provide rigorous definitions for barycentric and geocentric reference systems in a relativistic framework and define the coordinate times of these systems as TCB and TCG, respectively. Other coordinate times in use are TT, defined from TCG through IAU'2000 Resolution B1.9, and TDB, whose rigorous definition from TCB is now proposed. For practical use, these coordinate times must be realized and the proper time provided by atomic clocks (Atomic time AT) is used to generate all coordinate times. The present sequence is AT => TT ||> TCG -> TCB ||> TDB, where the sign => indicates the complex series of operations involved in generating International atomic time TAI and where ||> is an exact transformation. The paper examines the uncertainty of realization of TAI and the uncertainty brought by the transformation TCG -> TCB. On-going and future evolutions of atomic clocks are reviewed along with their impact on the diagram of time transformations.

Affiliated with

Also associated with

No associations

Rating

From atomic clocks to coordinate times does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with From atomic clocks to coordinate times, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and From atomic clocks to coordinate times will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1624824