Astrogeology Science Center

Publications

Filter Total Items: 839
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Year Published: 2018

A new Enceladus global control network, image mosaic, and updated pointing kernels from Cassini's thirteen-year mission

NASA's Cassini spacecraft spent 13 years exploring the Saturn system, including 23 targeted flybys of the small, geologically active moon Enceladus. These flybys provided a wealth of image data from Cassini's Imaging Science Subsystem. To improve the usability of the Enceladus data set, we created a new, global photogrammetric control network...

Bland, Michael T.; Becker, Tammy L.; Edmundson, Kenneth; Roatsch, Thomas; Archinal, Brent; Takir, D.; Patterson, G. W.; Collins, G. C.; Schenk, P. M.; Pappalardo, R. T.; Cook, Debbie

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Year Published: 2018

Complex bedding geometry in the upper portion of Aeolis Mons, Gale crater, Mars

The Upper formation of Aeolis Mons in Gale crater exhibits curvilinear bedding patterns on the surfaces of several erosional benches that have been interpreted as cross-bedding. We use High Resolution Imaging Science Experiment (HiRISE) stereo topography to test this hypothesis by measuring the bedding geometry within these benches. The bedding...

Anderson, Ryan; Edgar, Lauren A.; Rubin, David M.; Lewis, Kevin W.; Newman, Claire
Anderson, R.B., Edgar, L.A., Rubin, D.M., Lewis, K.W., Newman, C., 2018. Complex bedding geometry in the upper portion of Aeolis Mons, Gale crater, Mars. Icarus 314, 246–264. doi:10.1016/j.icarus.2018.06.009

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Year Published: 2018

A novel technique for precision geometric correction of jitter distortion for the Europa Imaging System and other rolling shutter cameras

We use simulated images to demonstrate a novel technique for mitigating geometric distortions caused by platform motion (“jitter”) as two-dimensional image sensors are exposed and read out line by line (“rolling shutter”). The results indicate that the Europa Imaging System (EIS) on NASA’s Europa Clipper can likely meet its scientific goals...

Kirk, Randolph L.; Shepherd, Makayla; Sides, Stuart
International Archives of Photogrammetry, Remote Sensing, and Spatial Information Sciences, XLII-3, 735–739.

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Year Published: 2018

Final Mimas and Enceladus atlases derived from Cassini-ISS images

The Imaging Science Subsystem (ISS) on-board Cassini took a few high-resolution images of the icy Saturnian satellites Mimas and Enceladus over the last seven years of the Cassini mission during non-targeted flybys. We used the new Mimas images to improve the existing semi-controlled mosaic of Mimas. A new controlled...

Roatsch, Thomas; Kersten, E.; Matz, K.-D.; Bland, Michael T.; Becker, Tammy L.; Patterson, Gerald Wesley; Porco, C.

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Year Published: 2018

The thermophysical properties of the Bagnold Dunes, Mars: Ground truthing orbital data

We compare the thermophysical properties and particle sizes derived from the Mars Science Laboratory rover's Ground Temperature Sensor of the Bagnold dunes, specifically Namib dune, to those derived orbitally from Thermal Emission Imaging System, ultimately linking these measurements to ground truth particle sizes determined from Mars Hand Lens...

Edwards, Christopher S.; Piqueux, Sylvain; Hamilton, Victoria E.; Fergason, Robin L.; Herkenhoff, Kenneth E.; Vasavada, Ashwin R.; Bennett, Kristen A.; Sacks, Leah; Lewis, Kevin; Smith, Michael D.

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Year Published: 2018

Measuring impact crater depth throughout the solar system

One important, almost ubiquitous, tool for understanding the surfaces of solid bodies throughout the solar system is the study of impact craters. While measuring a distribution of crater diameters and locations is an important tool for a wide variety of studies, so too is measuring a crater's “depth.” Depth can inform numerous studies including...

Robbins, Stuart J.; Watters, Wesley A.; Chappelow, John E.; Bray, Veronica J.; Daubar, Ingrid J.; Craddock, Robert A.; Beyer, Ross A.; Landis, Margaret E.; Ostrach, Lillian; Tornabene, Livio L.; Riggs, Jamie D.; Weaver, Brian P.
Robbins, S.J. et al., 2018. Measuring impact crater depth throughout the solar system. Meteoritics and Planetary Science, 53(4), 583-626.

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Year Published: 2018

Ancient Martian aeolian processes and palaeomorphology reconstructed from the Stimson formation on the lower slope of Aeolis Mons, Gale crater, Mars

Reconstruction of the palaeoenvironmental context of Martian sedimentary rocks is central to studies of ancient Martian habitability and regional palaeoclimate history. This paper reports the analysis of a distinct aeolian deposit preserved in Gale crater, Mars, and evaluates its palaeomorphology, the processes responsible for its deposition, and...

Banham, Steve G.; Gupta, Sanjeev; Rubin, David M.; Watkins, Jessica A.; Sumner, Dawn Y.; Edgett, Kenneth S.; Grotzinger, John P.; Lewis, Kevin W.; Edgar, Lauren A.; Stack, Kathryn M.; Barnes, Robert; Bell, James F.; Day, Mackenzie D.; Ewing, Ryan C.; Lapotre, Mathieu G.A.; Stein, Nathan T.; Rivera-Hernández, Frances; Vasavada, Ashwin R.
Banham, S. G., Gupta, S., Rubin, D. M., Watkins, J. A., Sumner, D. Y., Edgett, K. S., Grotzinger, J. P., Lewis, K. W., Edgar, L. A., Stack-Morgan, K. M., Barnes, R., Bell, J. F., Day, M. D., Ewing, R. C., Lapotre, M. G.A., Stein, N. T., Rivera-Hernandez, F. and Vasavada, A. R. (2018), Ancient Martian aeolian processes and palaeomorphology reconstructed from the Stimson formation on the lower slope of Aeolis Mons, Gale crater, Mars. Sedimentology. https://doi.org/10.1111/sed.12469

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Year Published: 2018

Relaxed impact craters on Ganymede: Regional variation and high heat flows

Viscously relaxed craters provide a window into the thermal history of Ganymede, a satellite with copious geologic signs of past high heat flows. Here we present measurements of relaxed craters in four regions for which suitable imaging exists: near Anshar Sulcus, Tiamat Sulcus, northern Marius Regio, and Ganymede's south pole. We describe a...

Singer, Kelsi N.; Bland, Michael T.; Schenk, Paul M.; McKinnon, William B.
Sing, K. N., Bland, M. T., Schenk, P. M., McKinnon, W. B., 2018. Relaxed impact craters on Ganymede: Regional variation and high heat flows. Icarus 306, 214-224.

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Year Published: 2018

Geologic map of the Nepenthes Planum Region, Mars

This map product contains a map sheet at 1:1,506,000 scale that shows the geology of the Nepenthes Planum region of Mars, which is located between the cratered highlands that dominate the southern hemisphere and the less-cratered sedimentary plains that dominate the northern hemisphere.  The map region contains cone- and mound-shaped...

Skinner, James A.; Tanaka, Kenneth L.
Skinner, J.A., Jr., and Tanaka, K.L., 2018, Geologic map of the Nepenthes Planum Region, Mars: U.S. Geological Survey Scientific Investigations Map 3389, pamphlet 11 p., scale 1:1,506,000, https://doi.org/10.3133/sim3389.

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Year Published: 2018

Ceres internal structure from geophysical constraints

Thermal evolution modeling has yielded a variety of interior structures for Ceres, ranging from a modestly differentiated interior to more advanced evolution with a dry silicate core, a hydrated silicate mantle, and a volatile‐rich crust. Here we compute the mass and hydrostatic flattening from more than one hundred billion three‐layer density...

King, S.J.; Castillo-Rogez, J. C.; Toplis, M. J.; Bland, Michael T.; Raymond, C. A.; Russell, C. T.

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Year Published: 2018

Report of the IAU Working Group on Cartographic Coordinates and Rotational Elements: 2015

This report continues the practice where the IAU Working Group on Cartographic Coordinates and Rotational Elements revises recommendations regarding those topics for the planets, satellites, minor planets, and comets approximately every three years. The Working Group has now become a “functional working group” of the IAU and its membership is open...

Archinal, Brent; Acton, C. H.; A’Hearn, M. F.; Conrad, A.; Consolmagno, G. J.; Duxbury, T.; D. Hestroffer; Hilton, J. L.; Kirk, Randolph L.; Klioner, S. A.; McCarthy, D.; Meech, K.; Oberst, J.; Ping, J.; Seidelmann, P. K.; Tholen, D. J.; Thomas, P. C.; Williams, I. P.

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Year Published: 2018

AutoCNet: A Python library for sparse multi-image correspondence identification for planetary data

In this work we describe the AutoCNet library, written in Python, to support the application of Computer Vision techniques for n-image correspondence identication in remotely sensed planetary images and subsequent bundle adjustment. The library is designed to support exploratory data analysis, algorithm and processing pipeline development, and...

Laura, Jason R.; Rodriguez, Kelvin; Paquette, Adam; Dunn, Evin