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- Publications
- Influence
Interior structure and seasonal mass redistribution of Mars from radio tracking of Mars Pathfinder.
- W. Folkner, C. Yoder, D. N. Yuan, E. Standish, R. Preston
- Geology, Medicine
- Science
- 1 September 1997
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 improved… Expand
Mars high resolution gravity fields from MRO, Mars seasonal gravity, and other dynamical parameters
- A. S. Konopliv, S. Asmar, +5 authors M. Zuber
- Geology
- 2011
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 Mars… Expand
Fluid Core Size of Mars from Detection of the Solar Tide
- C. Yoder, A. Konopliv, D. N. Yuan, E. Standish, W. Folkner
- Medicine
- Science
- 6 March 2003
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 large… Expand
Ammonia abundance in Jupiter's atmosphere derived from the attenuation of the Galileo probe's radio signal
- W. Folkner, R. Woo, S. Nandi
- Geology
- 25 September 1998
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… Expand
The Planetary and Lunar Ephemeris DE 421
- W. Folkner, J. Williams, D. Boggs
- Physics
- 1 August 2009
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
- S. Squyres, R. Arvidson, +47 authors A. Yen
- Geology, Medicine
- Science
- 3 December 2004
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 surface… Expand
Intersatellite laser ranging instrument for the GRACE follow-on mission
- B. Sheard, G. Heinzel, K. Danzmann, D. Shaddock, W. Klipstein, W. Folkner
- Environmental Science
- Journal of Geodesy
- 8 May 2012
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 global… Expand
The IAU 2009 system of astronomical constants: the report of the IAU working group on numerical standards for Fundamental Astronomy
- B. Luzum, N. Capitaine, +9 authors P. Wallace
- Physics
- 10 July 2011
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 2009… Expand
Overview of the Mars Pathfinder mission and assessment of landing site predictions.
- M. Golombek, R. A. Cook, +11 authors R. Vaughan
- Geology, Medicine
- Science
- 5 December 1997
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 suggest… Expand
An improved JPL Mars gravity field and orientation from Mars orbiter and lander tracking data
- A. S. Konopliv, R. Park, W. Folkner
- Geology
- 1 August 2016
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 Odyssey… Expand