Cassini RADAR Sequence Planning and Instrument Performance

The Cassini RADAR is a multimode instrument used to map the surface of Titan, the atmosphere of Saturn, the Saturn ring system, and to explore the properties of the icy satellites. Four different active mode bandwidths and a passive radiometer mode provide a wide range of flexibility in taking measurements. The scatterometer mode is used for real aperture imaging of Titan, high-altitude (around 20 000 km) synthetic aperture imaging of Titan and Iapetus, and long range (up to 700 000 km) detection of disk integrated albedos for satellites in the Saturn system. Two SAR modes are used for high- and medium-resolution (300-1000 m) imaging of Titan's surface during close flybys. A high-bandwidth altimeter mode is used for topographic profiling in selected areas with a range resolution of about 35 m. The passive radiometer mode is used to map emission from Titan, from Saturn's atmosphere, from the rings, and from the icy satellites. Repeated scans with differing polarizations using both active and passive data provide data that can usefully constrain models of surface composition and structure. The radar and radiometer receivers show very good stability, and calibration observations have provided an absolute calibration good to about 1.3 dB. Relative uncertainties within a pass and between passes can be even smaller. Data are currently being processed and delivered to the planetary data system at quarterly intervals one year after being acquired

Planetary Geologic Mappers Annual Meeting : June 12-14, 2018, Knoxville, Tennessee

The annual Planetary Geologic Mappers meetings are held to allow geologic mappers of funded NASA geological mapping projects or other mapping projects to present the status of mapping efforts and obtain guidance for map process, formatting, submission, and technical review.Institutional Support Lunar and Planetary Institute, Universities Space Research AssociationConvener Devon Burr, Earth and Planetary Sciences Department, University of Tennessee Knoxville ; Science Organizing Committee David Williams, Chair, Arizona State University, Devon Burr, Earth and Planetary Sciences Department, University of Tennessee Knoxville, Robert Jacobsen, Earth and Planetary Sciences Department, University of Tennessee Knoxville, Bradley Thomson, Earth and Planetary Sciences Department, University of Tennessee KnoxvillePARTIAL CONTENTS: Geologic Mapping of Impact Craters and the Mahuea Tholus Construct: A Year Three Progress Report for the Mahuea Tholus (V-49) Quadrangle, Venus / N. P. Lang, M. T. Covley, J. Beltran, K. Rogers, and B. J. Thomson--The Europa Global Geologic Map / E. J. Leonard, D. A. Patthoff, D. A. Senske, and G. C. Collins--Building a Geologic Map of Neptune’s Moon Triton / E. S. Martin, D. A. Patthoff, M. T. Bland, T. R. Watters, G. C. Collins, and T. Becker--Updating the Global Map of Titan Fluvial Features and Investigating Downstream Radar Brightness Trends / A. D. Maue, D. M. Burr, J. S. Levy, and E. Nathan--Investigations of Volcanic and Volatile-Driven Processes Northeast of Hellas Basin, Mars / S. C. Mest, D. A. Crown, J. Michalski, F. C. Chuang, / K. Price Blount, and L. F. Bleamaster--Preliminary Volcanic Feature Analysis of Olympus Mons and Ascraeus Mons, Mars / K. J. Mohr, D. A. Williams, W. B. Garry, and J. E. Bleacher--High-Resolution Geologic Mapping in Eastern Candor Chasma: 2018 Status Report / C. H. Okubo--2018 Update on the Geologic Map of the Borealis Quadrangle (H-1) on Mercury / L. R. Ostrach, S. C. Mest, L. M. Prockter, N. E. Petro, and P. K. Byrne--Enigmatic Sedimentary Deposits Within Partially Exhumed Impact Craters in the Aeolis Dorsa Region, Mars: Evidence for Past Crater Lakes / S. E. Peel and D. M. Burr--The Fractal Nature of Planetary Landforms and Implications to Geologic Mapping / S. J. Robbins

Topics in environmental and physical geodesy

A compilation of mathematical techniques and physical basic knowledge in order to prepare the post graduate students of the subjects of physical geodesy, environmental physics and the visiting students of Erasmus-Socrates projects of the Mediterranean Institute of Oceanography of Toulon and the Campus Universitari de la Mediterrania in Vilanova i la Geltru, Barcelona.Postprint (published version

Abstracts on Radio Direction Finding (1899 - 1995)

The files on this record represent the various databases that originally composed the CD-ROM issue of "Abstracts on Radio Direction Finding" database, which is now part of the Dudley Knox Library's Abstracts and Selected Full Text Documents on Radio Direction Finding (1899 - 1995) Collection. (See Calhoun record https://calhoun.nps.edu/handle/10945/57364 for further information on this collection and the bibliography). Due to issues of technological obsolescence preventing current and future audiences from accessing the bibliography, DKL exported and converted into the three files on this record the various databases contained in the CD-ROM. The contents of these files are: 1) RDFA_CompleteBibliography_xls.zip [RDFA_CompleteBibliography.xls: Metadata for the complete bibliography, in Excel 97-2003 Workbook format; RDFA_Glossary.xls: Glossary of terms, in Excel 97-2003 Workbookformat; RDFA_Biographies.xls: Biographies of leading figures, in Excel 97-2003 Workbook format]; 2) RDFA_CompleteBibliography_csv.zip [RDFA_CompleteBibliography.TXT: Metadata for the complete bibliography, in CSV format; RDFA_Glossary.TXT: Glossary of terms, in CSV format; RDFA_Biographies.TXT: Biographies of leading figures, in CSV format]; 3) RDFA_CompleteBibliography.pdf: A human readable display of the bibliographic data, as a means of double-checking any possible deviations due to conversion

Reports of planetary geology and geophysics program, 1987

This is a compilation of abstracts of reports from Principal Investigators of NASA's PLanetary Geology and Geophysics program, Office of Space Science and Applications. The purpose is to document in summary form research work conducted in this program during 1987. Each report reflects significant accomplishments in the area of the author's funded grant or contract

Large space structures and systems in the space station era: A bibliography with indexes (supplement 04)

Bibliographies and abstracts are listed for 1211 reports, articles, and other documents introduced into the NASA scientific and technical information system between 1 Jul. and 30 Dec. 1991. Its purpose is to provide helpful information to the researcher, manager, and designer in technology development and mission design according to system, interactive analysis and design, structural concepts and control systems, electronics, advanced materials, assembly concepts, propulsion, and solar power satellite systems

Large space structures and systems in the space station era: A bibliography with indexes

Bibliographies and abstracts are listed for 1372 reports, articles, and other documents introduced into the NASA scientific and technical information system between January 1, 1990 and June 30, 1990. Its purpose is to provide helpful information to the researcher, manager, and designer in technology development and mission design according to system, interactive analysis and design, structural and thermal analysis and design, structural concepts and control systems, electronics, advanced materials, assembly concepts, propulsion, and solar power satellite systems