Gravity Fields

Sjogren, W. L.; Anderson, J. D.; Phillips, R. J.; Trask, D.

doi:10.1109/tge.1976.294448

Cited by 13 publications

(4 citation statements)

References 55 publications

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“…The use of spacecraft Doppler navigation signals [Sjogren et al, 1976a] to map the anomalous (nonspherical) component of a planetary gravity field is well established [e.g., Michael et al, 1966;Lorell and Sjogren, 1968;Wong et al, 1971;Sjogren et al, 1975]. The classical dynamic approach of mass parameter or harmonic determination proceeds by least squares estimation of orbital and gravity field parameters based on integration of the equations of motion.…”

Section: Introductionmentioning

confidence: 99%

Simulation gravity modeling to spacecraft‐tracking data: Analysis and application

Phillips

Sjogren²,

Abbott

et al. 1978

J. Geophys. Res.

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It is proposed that line‐of‐sight gravity measurements derived from spacecraft‐tracking data can be used for quantitative subsurface density modeling by suitable orbit simulation procedures. Such an approach avoids complex dynamic reductions and is analogous to the modeling of conventional surface gravity data. This procedure utilizes the vector calculations of a given gravity model in a simplified trajectory integration program that simulates the line‐of‐sight gravity. Solutions from an orbit simulation inversion and a dynamic inversion on Doppler observables compare well (within 1% in mass and size), and the error sources in the simulation approximation are shown to be quite small. An application of this technique is made to lunar crater gravity anomalies by simulating the complete Bouguer correction to several large young lunar craters. It is shown that the craters all have negative Bouguer anomalies.

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Section: Introductionmentioning

confidence: 99%

Simulation gravity modeling to spacecraft‐tracking data: Analysis and application

Phillips

Sjogren²,

Abbott

et al. 1978

J. Geophys. Res.

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“…The bibliography provided is representative but not exhaustive. In addition to previous quadrennial reports by Kaula [1975], Anderson [1975], Ferrari and Bills [1979], and , publications by Anderson [1974], Sjogren et al [1976], Phillips and Lambeck [1980], Stevenson [1982], Davies et al [1983,1986] and Hubbard [1984] provide valuable background information. A summary table of important geodetic parameters is provided.…”

Section: Introductionmentioning

confidence: 89%

Planetary geodesy

Bills¹,

Synnott²

1987

Reviews of Geophysics

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This report will attempt to review progress in planetary geodesy during the past four years. We basically restrict the discussion to gravity, topography, rotation and their physical significance. The format has been kept flexible to accommodate the varied amount of information available for the different planets. The bibliography provided is representative but not exhaustive. In addition to previous quadrennial reports by Kaula [1975], Anderson [1975], Ferrari and Bills [1979], and Sjogren [1983], publications by Anderson [1974], Sjogren et al [1976], Phillips and Lambeck [1980], Stevenson [1982], Davies et al [1983, 1986] and Hubbard [1984] provide valuable background information. A summary table of important geodetic parameters is provided.

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“…Once the harmonic coefficients are found from the data, their interpretation involves the computation of theoretical values according to (Sjogren et al 1976),…”

Section: Quadrupole Gravitational Momentsmentioning

confidence: 99%