SCIENTIFIC AND TECHNICAL AEROSPACE REPORTS
A Biweekly Publication of the National Aeronautics and Space Administration
VOLUME 44, ISSUE 14 - JULY 18, 2006
91 LUNAR AND PLANETARY SCIENCE AND EXPLORATION
Includes planetology; selenology; meteorites; comets; and manned and unmanned planetary and lunar flights.
For spacecraft design or space stations see 18 Spacecraft Design, Testing and Performance.
20060021481 NASA Ames Research Center, Moffett Field, CA, USA
Atmospheres of Extrasolar Giant Planets
Marley, Mark; [2006]; 1 pp.; In English; UCL Astrobiology Colloquim, 10-13 Jul. 2006, London, UK; No Copyright; Avail.: Other Sources; Abstract Only
The next decade will almost certainly see the direct imaging of extrasolar giant planets around nearby stars. Unlike purelyradial velocity detections, direct imaging will open the door to characterizing the atmosphere and interiors of extrasola planets and ultimately provide clues on their formation and evolution through time. This process has already begun for the transiting planets, placing new constraints on their atmospheric structure, composition, and evolution. Indeed the key to understanding giant planet detectability, interpreting spectra, and constraining effective temperature and hence evolution-is the atmosphere.I will review the universe of extrasolar giant planet models, focusing on what we have already learned from modeling and what we will likely be able to learn from the first generation of direct detection data. In addition to these theoretical considerations, I will review the observations and interpretation of the - transiting hot Jupiters. These objects provide a test of our ability to model exotic atmospheres and challenge our current understanding of giant planet evolution. Author
Extrasolar Planets; Gas Giant Planets; Planetary Atmospheres; Universe
20060021482 NASA, Washington, DC, USA
Training for the Future
Creamer, Timothy J.; [2005]; 4 pp.; In English; No Copyright; Avail.: CASI: A01, Hardcopy
Timothy J. Creamer, mission specialist, presents an overview about training to fly in space with thoughts on the International Space Station and also, past and future endeavors. CASI
Space Missions; International Space Station; Space Flight Training
20060021526 NASA Ames Research Center, Moffett Field, CA, USA
| |
| Tools for Aviation/Aerospace |
| IHS sells products and services designed to meet the needs of today's engineers. To learn more, and for a free quote, please complete the form below. |
|
To the North Coast of Devon: Collaborative Navigation While Exploring Unfamiliar Terrain
Clancey, William J.; Lee, Pascal; Cockell, Charles S.; Braham, Stephen; Shafto, Mike; January 05, 2006; 33 pp.; In English; Original contains black and white illustrations; Copyright; Avail.: CASI: A03, Hardcopy
Navigation-knowing where one is and finding a safe route-is a fundamental aspect of all exploration. In unfamiliar terrain, one may use maps and instruments such as a compass or binoculars to assist, and people often collaborate in finding their way. This paper analyzes a group of people driving a humvee from a base camp to the north coast of Devon Island in the High Canadian Arctic. A complete audio recording and video during most stops allows a quantitative and semantic analysis of the conversations when the team stopped to take bearings and replan a route. Over a period of 2 hours, the humvee stopped 20 times, with an average duration of 3.15 min/pause and 3.85 min moving forward. The team failed to reach its goal due to difficult terrain causing mechanical problems. The analysis attempts to explain these facts by considering a variety of complicating factors, especially the navigation problem of relating maps and the world to locate the humvee and to plan a route. The analysis reveals patterns in topic structure and turn-taking, supporting the view that the collaboration was efficient, but the tools and information were inadequate for the task. This work is relevant for planning and training for planetary surface missions, as well as developing computer systems that could aid navigation. Author
Navigation; Terrain; Coasts; Islands
Source: NASA
|
IHS sells products and services designed to meet the needs of today's aviation & aerospace engineers, including:
- Quick access to FAA, JAA, ICAO and UK-CAA information and regulations.
- Validated engineering methods, data, principles, worked examples, programs and related equations on over 1340 specific aerospace, process, structural and mechanical engineering topics.
- The IHS Fasteners eCatalog, providing decision support for the identification, specification and sourcing of aerospace & defense standard fasteners/hardware such as bolts, screws, nuts, washers, rivets, studs, etc.
- Standards documents and collections from the top aerospace & aviation standards development organizations, including SAE International, AIAA, AIA, FAA and NASA.
|