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Interior structure and seasonal mass redistribution of Mars from radio tracking of Mars Pathfinder.
Doppler and range measurements to the Mars Pathfinder lander made using its radio communications system have been combined with similar measurements from the Viking landers to estimate improvedExpand
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Mars high resolution gravity fields from MRO, Mars seasonal gravity, and other dynamical parameters
Abstract With 2 years of tracking data collection from the MRO spacecraft, there is noticeable improvement in the high frequency portion of the spherical harmonic Mars gravity field. The new JPL MarsExpand
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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. The observedk 2 of 0.153 ± 0.017 is largeExpand
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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 depthExpand
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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.Expand
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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. The soils consist of fine-grained basaltic sand and a surfaceExpand
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Intersatellite laser ranging instrument for the GRACE follow-on mission
The Gravity Recovery and Climate Experiment (GRACE) has demonstrated that low–low satellite-to-satellite tracking enables monitoring the time variations of the Earth’s gravity field on a globalExpand
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The IAU 2009 system of astronomical constants: the report of the IAU working group on numerical standards for Fundamental Astronomy
In the 2006–2009 triennium, the International Astronomical Union (IAU) Working Group on Numerical Standards for Fundamental Astronomy determined a list of Current Best Estimates (CBEs). The IAU 2009Expand
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Overview of the Mars Pathfinder mission and assessment of landing site predictions.
Chemical analyses returned by Mars Pathfinder indicate that some rocks may be high in silica, implying differentiated parent materials. Rounded pebbles and cobbles and a possible conglomerate suggestExpand
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An improved JPL Mars gravity field and orientation from Mars orbiter and lander tracking data
Abstract The Mars gravity field resolution is mostly determined by the lower altitude Mars Reconnaissance Orbiter (MRO) tracking data. With nearly four years of additional MRO and Mars OdysseyExpand
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