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Interior structure and seasonal mass redistribution of Mars from radio tracking of Mars Pathfinder.
Improved values of the precession of Mars' pole of rotation and the variation in Mars' rotation rate are estimated, which are in good agreement with a model of seasonal mass exchange of carbon dioxide between the atmosphere and ice caps.
A global solution for the Mars static and seasonal gravity, Mars orientation, Phobos and Deimos masses, and Mars ephemeris
Fluid Core Size of Mars from Detection of the Solar Tide
The solar tidal deformation of Mars, measured by itsk 2 potential Love number, has been obtained from an analysis of Mars Global Surveyor radio tracking and indicates that at least the outer part of the core is liquid.
JPL's On-Line Solar System Data Service
Report of the IAU/IAG Working Group on Cartographic Coordinates and Rotational Elements of the Planets and Satellites: 2000
Every three years the IAU/IAG Working Group on cartographic coordinates and rotational elements of the planets and satellites revises tables giving the directions of the north poles of rotation and…
Martian precession and rotation from Viking lander range data
The spatial orientation of the Martian pole of rotation and axial rotation parameters have been determined at a midpoint in the Viking epoch (January 1, 1980). The mean obliquity e and node ψ angles…
DE 102: a numerically integrated ephemeris of the moon and planets spanning forty-four centuries.
It is pointed out that the 1960's were the turning point for the generation of lunar and planetary ephemerides. All previous measurements of the positions of solar system bodies were optical angular…
A determination of the masses of Ceres, Pallas, and Vesta from their perturbations upon the orbit of Mars
The Astronomical Unit now
- E. Standish
- PhysicsProceedings of the International Astronomical…
- 1 June 2004
The Astronomical Unit is one of the most basic units of astronomy: the scale of the solar system. Yet its long and colorful history is sprinkled liberally with incorrect descriptions and mis-quoted…
Report of the IAU WGAS Sub-group on Numerical Standards
- E. Standish
The report proposes to retain the present IAU System of Astronomical Constants and also proposes to establish a IAU File of Current Best Estimates and the establishment of a Maintenance Committee, governed by a set of proposed by-laws, in order to oversee the maintenance of the new file.