TDB or TCB: does it make a difference?

Details TDB or TCB: does it make a difference? TDB or TCB: does it make a difference?

Aug 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006iaujd..16e..20k&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

Although the relativistic framework as adopted by the IAU in 1991 and refined in 2000 recommends the coordinate time TCB to be used for modelling of any physical phenomena not localized to the vicinity of the Earth, an older time scale TDB is usually used instead. In this presentation the current status of TDB, its relation to TCB as well as its advantages and disadvantages for practical problem will be discussed in detail. Along with TDB itself, the units of measurements and the system of astronomical units will be discussed from the relativistic point of view. Special attention will be paid to the use of TCB and TDB for developing new solar system ephemerides.

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