Author: Publisher:
ISBN:
Category :
Languages : en
Pages : 14
Book Description
On-Orbit Performance Degradation of the International Space Station P6 Photovoltaic Arrays
Author: On-Orbit Performance Degradation of the International Space Station P6 Photovoltaic Arrays
Author: National Aeronautics and Space Administration (NASA)Publisher: Createspace Independent Publishing Platform
ISBN: 9781721590353
Category :
Languages : en
Pages : 26
Book Description
This paper discusses the on-orbit performance and performance degradation of the International Space Station P6 solar array wings (SAWs) from the period of December 2000 through February 2003. Data selection considerations and data reduction methods are reviewed along with the approach for calculating array performance degradation based on measured string shunt current levels. Measured degradation rates are compared with those predicted by the computational tool SPACE and prior degradation rates measured with the same SAW technology on the Mir space station. Initial results show that the measured SAW short-circuit current is degrading 0.2 to 0.5 percent per year. This degradation rate is below the predicted rate of 0.8 percent per year and is well within the 3 percent estimated uncertainty in measured SAW current levels. General contributors to SAW degradation are briefly discussed. Kerslake, Thomas W. and Gustafson, Eric D. Glenn Research Center NASA/TM-2003-212513, E-14073, NAS 1.15:212513, AIAA Paper 2003-5999
Research & Technology 2003
Author: Publisher: DIANE Publishing
ISBN: 1428918191
Category :
Languages : en
Pages : 264
Book Description
Aerospace America
Author: Large Space Structures & Systems in the Space Station Era
Author: Publisher:
ISBN:
Category : Large space structures (Astronautics)
Languages : en
Pages : 1042
Book Description
Technology for Large Space Systems
Author: Publisher:
ISBN:
Category : Large space structures (Astronautics)
Languages : en
Pages : 280
Book Description
The International Space Station
Author: Robert C. DempseyPublisher: Government Printing Office
ISBN: 9780160943898
Category : Transportation
Languages : en
Pages : 440
Book Description
Looks at the operations of the International Space Station from the perspective of the Houston flight control team, under the leadership of NASA's flight directors, who authored the book. The book provides insight into the vast amount of time and energy that these teams devote to the development, planning and integration of a mission before it is executed. The passion and attention to detail of the flight control team members, who are always ready to step up when things do not go well, is a hallmark of NASA human spaceflight operations. With tremendous support from the ISS program office and engineering community, the flight control team has made the International Space Station and the programs before it a success.
International Space Station Evolution Data Book
Author: NASA SP.
Author: Limiting Future Collision Risk to Spacecraft
Author: National Research CouncilPublisher: National Academies Press
ISBN: 0309219744
Category : Science
Languages : en
Pages : 178
Book Description
Derelict satellites, equipment and other debris orbiting Earth (aka space junk) have been accumulating for many decades and could damage or even possibly destroy satellites and human spacecraft if they collide. During the past 50 years, various National Aeronautics and Space Administration (NASA) communities have contributed significantly to maturing meteoroid and orbital debris (MMOD) programs to their current state. Satellites have been redesigned to protect critical components from MMOD damage by moving critical components from exterior surfaces to deep inside a satellite's structure. Orbits are monitored and altered to minimize the risk of collision with tracked orbital debris. MMOD shielding added to the International Space Station (ISS) protects critical components and astronauts from potentially catastrophic damage that might result from smaller, untracked debris and meteoroid impacts. Limiting Future Collision Risk to Spacecraft: An Assessment of NASA's Meteoroid and Orbital Debris Program examines NASA's efforts to understand the meteoroid and orbital debris environment, identifies what NASA is and is not doing to mitigate the risks posed by this threat, and makes recommendations as to how they can improve their programs. While the report identified many positive aspects of NASA's MMOD programs and efforts including responsible use of resources, it recommends that the agency develop a formal strategic plan that provides the basis for prioritizing the allocation of funds and effort over various MMOD program needs. Other necessary steps include improvements in long-term modeling, better measurements, more regular updates of the debris environmental models, and other actions to better characterize the long-term evolution of the debris environment.