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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.
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.
The Planetary and Lunar Ephemerides DE430 and DE431
The research described in this publication was carried out by the Jet Propulsion Laboratory, California Institute of Technology, under a contract with the National Aeronautics and Space
Ammonia abundance in Jupiter's atmosphere derived from the attenuation of the Galileo probe's radio signal
The radio signal from the Galileo probe to the orbiter experienced attenuation due to ammonia in Jupiter's atmosphere during the probe descent. A profile of the ammonia content as a function of depth
The Planetary and Lunar Ephemeris DE 421
The planetary and lunar ephemeris DE 421 represents updated estimates of the orbits of the Moon and planets. The lunar orbit is known to submeter accuracy through fitting lunar laser ranging data.
The Opportunity Rover's Athena Science Investigation at Meridiani Planum, Mars
The Mars Exploration Rover Opportunity has investigated the landing site in Eagle crater and the nearby plains within Meridiani Planum, and the rocks are interpreted to be a mixture of chemical and siliciclastic sediments formed by episodic inundation by shallow surface water, followed by evaporation, exposure, and desiccation.
The NANOGrav 11-year Data Set: Pulsar-timing Constraints On The Stochastic Gravitational-wave Background
We search for an isotropic stochastic gravitational-wave background (GWB) in the newly released 11 year data set from the North American Nanohertz Observatory for Gravitational Waves (NANOGrav).
Laser interferometry for the Big Bang Observer
The Big Bang Observer is a proposed space-based gravitational-wave detector intended as a follow on mission to the Laser Interferometer Space Antenna (LISA). It is designed to detect the stochastic