4 papers
Masses of the Main Asteroid Belt and the Kuiper Belt from the Motions of Planets and Spacecraft
E. V. Pitjeva, N. P. Pitjev
Dynamical mass estimates for the main asteroid belt and the trans-Neptunian Kuiper belt have been found from their gravitational influence on the motion of planets. Discrete rotati…
Mass of the Kuiper Belt
E. V. Pitjeva, N. P. Pitjev
The Kuiper belt includes tens of thousands of large bodies and millions of smaller objects. The main part of the belt objects is located in the annular zone between 39.4 au and 47.…
Report of the IAU Commission 4 Working Group on Standardizing Access to Ephemerides and File Format Specification
James L. Hilton, Charles Acton, Jean-Eudes Arlot +9
The IAU Commission 4 Working Group on Standardizing Access to Ephemerides recommends the use of the Spacecraft and Planet Kernel (SPK) format as a standard format for the position…
Units of relativistic time scales and associated quantities
S. Klioner, N. Capitaine, W. Folkner +6
This note suggests nomenclature for dealing with the units of various astronomical quantities that are used with the relativistic time scales TT, TDB, TCB and TCG. It is suggested…