41,871 to 41,880 of 42,087 Results
Nov 12, 1996
Trowell, Stephen; Wild, James; Horvath, Joan; Jones, Jack; Johnson, Elizabeth; Cutts, James, 1996, "(abstract) Through the Europan Ice: Advanced Lander Mission Options", https://hdl.handle.net/2014/26517, San Juan Capistrano, CA, JPL Open Repository
A variety of options for missions to visit Europa and study it in depth are being discussed. A first reconaissance may be made with an orbiter only. However, detailed examination of any water-ice ocean, particularily to determine the possible existence of biochemical materials, w... |
Dec 15, 1996
Joughin, I.; Kwok, R.; Fahnestock, M., 1996, "(abstract) Three Dimensional Ice-Flow Velocity Estimation Using Satellite Radar Interferometry", https://hdl.handle.net/2014/26513, San Francisco, CA, JPL Open Repository
An understanding of the flow dynamics of an ice sheet's outlet glaciers and ice streams requires knowledge of their flow velocity and strain rates (i.e., velocity gradients). Prior to the recent advent of satellite radar interferometry, it was not possible to measure detailed ice... |
Dec 5, 1994
Burger, Dale R., 1994, "(abstract) Thermophotovoltaic System Parametric Modeling", https://hdl.handle.net/2014/34499, Waikoloa, Hawaii, JPL Open Repository
Design equations and parametric modeling can be used to define ranges of thermal, optical, and electrical system parameters in a small spacecraft thermophotovoltaic power system. |
Aug 1, 1993
Way, JoBea; Evans, Diane; Elachi, Charles, 1993, "(abstract) The SIR-C/X-SAR Mission", https://hdl.handle.net/2014/34863, Tokyo, Japan, JPL Open Repository
The Shuttle Imaging Radar-C and X-Band Synthetic Aperture Radar (SIR-C/X-SAR) is a cooperative experiment between the National Aeronautics and Space Administration (NASA), the German Space Agency (DARA), and the Italian Space Agency (ASI). The experiment is the next evolutionary... |
Sep 30, 1996
Farr, Tom G.; Kobrick, Mike, 1996, "(abstract) The Shuttle Radar Topography Mapper", https://hdl.handle.net/2014/26415, Zurich, Switzerland, JPL Open Repository
The Shuttle Radar Topography Mapper (SRTM), is a cooperative project between NASA and the Defense Mapping Agency of the U.S. Department of Defense. The mission is designed to use a single-pass radar interferometer to produce a digital elevation model of the Earth's land surface b... |
Nov 19, 1996
Devereaux, Ann, 1996, "(abstract) The Role of the Deep Space Network for Cassini", https://hdl.handle.net/2014/27494, Bologna, Italy, JPL Open Repository
Cassini radio science experiments have several categories of requirements for DSN tracking services. The three main areas for upgrade are in Ka-band, long-term frequence stability, and short-term frequency stability/phase noise level. |
Dec 7, 1993
Alkalaj, Leon; Panwar, Ramesh, 1993, "(abstract) The Nest Generation of Space Flight Computers", https://hdl.handle.net/2014/35284, Anaheim, CA, JPL Open Repository
To meet new design objectives for drastic reductions in mass, size, and power consumption, the Flight Computer Development Group at JPL is participating in a design study and development of a light-weight, small-sized, low-power 3-D Space Flight Computer. In this paper, we will p... |
Jul 10, 1994
Beichman, Charles, 1994, "(abstract) The IRAS All-Sky Survey: Scientific and Technical Lessons Learned", https://hdl.handle.net/2014/34501, Hamburg, Germany, JPL Open Repository
Although the Infrared Astronomy Satellite (IRAS) was launched over 10 years ago, the IRAS legacy of catalogs, images, and data archives remains a vital source of information on the infrared sky. Over 4000 papers in the refereed literature have used IRAS data, and this number cont... |
Dec 6, 1993
Feynman, J.; Martin, S. F., 1993, "(abstract) The Initiation of Quiescent-Filament Associated Coronal Mass Ejections by New Active Regions", https://hdl.handle.net/2014/35950, San Francisco, CA, JPL Open Repository
We will present observational evidence that the eruption of filaments and coronal mass ejections (CMEs) occur as a consequence of the destabilization of large scale coronal arcades due to newly emerging magnetic flux reconnecting with the preexisting arcades. |
Jul 6, 1993
Weissman, Paul R.; Stern, S. Alan, 1993, "(abstract) The Impactor Flux in the Pluto-Charon System", https://hdl.handle.net/2014/35453, Flagstaff, AZ, JPL Open Repository
The impactor flux on Pluto and Charon consists of long-period comets from the Oort cloud passing through the region, and intermediate-period comets evolving inward to (or outward from) short-period orbits. The source of the intermediate-period comets is likely an extended disk of... |