The Shape and Internal Structure of the Moon from the Clementine Mission

Zuber, M. T.; Smith, David E.; Lemoine, F. G.; Neumann, Gregory A.

doi:10.1126/science.266.5192.1839

Cited by 351 publications

(209 citation statements)

References 23 publications

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“…Clementine's polar orbit provided altimetry data along north-south orbital tracks (roughly along lines of longitude) spaced by approximately 2.5" at the equator (Zuber et al, 1994; also see Spudis et al, 1994). Overlapping coverage exists for some areas providing profiles that are spaced by only a few tenths of a degree.…”

Section: Topographymentioning

confidence: 99%

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The topography and gravity of Mare Serenitatis: implications for subsidence of the mare surface

Watters

Konopliv

2001

Planetary and Space Science

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Section: Topographymentioning

confidence: 99%

“…absolute vertical accuracy is estimated to be 100 m (Zuber et al, 1994;Smith et al, 1997). The LIDAR data are the best elevation data available for Mare Serenitatis since the accuracy of stereo-derived data are limited over relatively featureless mare surfaces (Cook and Robinson, 1999).…”

Section: Topographymentioning

confidence: 99%

The topography and gravity of Mare Serenitatis: implications for subsidence of the mare surface

Watters

Konopliv

2001

Planetary and Space Science

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“…In both the Clementinc [Zuber et al, 1994] and Lunar Prospector [Konopliv et al, 1998] gravity data, Smythii basin exhibits a strong (>500 mGals) Bouguer gravity anomaly (Figure 7). …”

Section: East Limb Gravitymentioning

confidence: 99%

Geology of the Smythii and Marginis region of the Moon: Using integrated remotely sensed data

Gillis

Spudis

2000

J. Geophys. Res.

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Abstract. We characterized the diverse and complex geology of the eastern limb region of the Moon using a trio of remote-sensing data sets: Clementine, Lunar Prospector, and Apollo. On the basis of Clementine-derived iron and titanium maps we classify the highlands into low-iron (3-6 wt % FeO) and high-iron (6-9 wt % FeO) units. The association of the latter with basalt deposits west of Smythii basin suggests that the highland chemical variation is the result of mixing between basalt and highland lithologies. Mare Smythii and Mare Marginis soils are compositionally similar, containing moderate iron (15-18 wt % FeO) and titanium (2.5-3.5 wt % TiO2). Smythii basin, in addition to the basalt deposits, contains an older, moderate-albedo plains unit. Our investigation reveals that the dark basin plains unit has a distinct albedo, chemistry, and surface texture and formed as a result of impact-mixing between highland and mare lithologies in approximately equal proportions. Clementine iron and maturity maps show that swirls along the northern margin of Mare Marginis have the same iron composition as the surrounding nonswirl material and indicate that the swirl material is bright because of its low agglutinate content. Gravity data for the eastern limb show high, positive Bouguer gravity anomalies for areas of thin basalt cover (e.g., Smythii basin and complex craters Joliot, Lomonosov, and Neper). We deduce that the uplift of dense mantle material is the primary (and mare basaltic fill the secondary) source for generating the concentration of mass beneath large craters and basins.

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“…With a 12th degree gravity field, correlations with surface features on Vesta of 65 km or greater can be investigated including the large 460 km impact basin near the south pole [Thomas et al, 1997a]. This higher resolution gravity field allows for comparative modeling with lunar impact basins [Zuber et al, 1994]. This higher resolution gravity field is attainable since Dawn uses reaction wheels for attitude control, thus eliminating disturbances due to thruster firings, except during orbital changes.…”

Section: Gravity Sciencementioning

confidence: 99%

Dawn: A journey in space and time

Russell¹,

Coradini²,

Christensen³

et al. 2004

Planetary and Space Science

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By successively orbiting both 4 Vesta and 1 Ceres the Dawn mission directly addresses the long-standing goals of understanding the origin and evolution of the solar system. Ceres and Vesta are two complementary terrestrial protoplanets (one apparently "wet" and the other "dry"), whose accretion was probably terminated by the formation of Jupiter. They provide a bridge in our understanding between the rocky bodies of the inner solar system and the icy bodies of the outer solar system. Ceres appears to be undifferentiated while Vesta has experienced significant heating and likely differentiation. Both formed very early in the history of the solar system and while suffering many impacts have remained intact, thereby retaining a record of events and processes from the time of planet formation. Detailed study of the geophysics and geochemistry of these two bodies provides critical benchmarks for early solar system conditions and processes that shaped its subsequent evolution. Dawn provides the missing context for both primitive and evolved meteoritic data, thus playing a central role in understanding terrestrial planet formation and the evolution of the asteroid belt. Dawn is to be launched in May 2006 arriving at Vesta in 2010 and Ceres in 2014, stopping at each to make 11 months of orbital measurements. The spacecraft uses solar electric propulsion, both in cruise and in orbit, to make most efficient use of its xenon propellant. The spacecraft carries a framing camera, visible and infrared mapping spectrometer, gamma ray/neutron spectrometer, magnetometer, and radio science.3

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The Shape and Internal Structure of the Moon from the Clementine Mission

Cited by 351 publications

References 23 publications

The topography and gravity of Mare Serenitatis: implications for subsidence of the mare surface

The topography and gravity of Mare Serenitatis: implications for subsidence of the mare surface

Geology of the Smythii and Marginis region of the Moon: Using integrated remotely sensed data

Dawn: A journey in space and time

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