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2006

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Overview Of The Xnav Program, X-Ray Navigation Using Celestial Sources , Dave Beckett Aug 2006

Overview Of The Xnav Program, X-Ray Navigation Using Celestial Sources , Dave Beckett

Small Satellite Conference

Satellite navigation systems rely heavily upon the Global Positioning System (GPS). GPS provides unrivaled performance in measurements of satellite ephemerides. Due to the increasing number of GPS system threats other options are now being evaluated, these new technologies are designed to augment or back-up the GPS system and be applied on other deep space missions. The Defense Advanced Research Projects Agency (DARPA) is developing one such navigation system, referred to as XNAV - “X-ray Source Based NAVigation for Autonomous Position Determination”. Theoretically, this system can use celestial X-ray sources to determine spacecraft attitude and position knowledge anywhere in the solar …


Small Satellites Cnes Programme Missions Flown And In Preparation, Lessons Learned, Success Conditions, Bernard Tatry, Marie-Anne Clair, François Buisson Aug 2006

Small Satellites Cnes Programme Missions Flown And In Preparation, Lessons Learned, Success Conditions, Bernard Tatry, Marie-Anne Clair, François Buisson

Small Satellite Conference

MYRIADE is the name of the CNES (french space agency) small satellite Line of Product which development started in 1999. It was an answer to the existing scientific, application or technological missions needs, and also an opportunity to develop international cooperation, technical or technological innovation, new management techniques, new organisations … MYRIADE had several objectives - provide low mission cost including launch cost - provide short development time - provide possibility to launch 2 missions/year - provide high performances together with great flexibility - The MYRIADE system is a multi-missions system, with a common ground segment and a specific flight …


Micro-Inspector Spacecraft An Overview, Hannah Goldberg, Juergen Mueller, Leon Alkalai Aug 2006

Micro-Inspector Spacecraft An Overview, Hannah Goldberg, Juergen Mueller, Leon Alkalai

Small Satellite Conference

JPL has completed design of a small (< 5 kg) spacecraft capable of visual inspection of a host vehicle with support from NASA’s Exploration Systems Mission Directorate (ESMD). The Micro-Inspector is designed to have a minimal impact on the host with respect to mass, size, cost, interface, and integration. On orbit, the host provides the separation signal to the Micro-Inspector, ejecting it to autonomously maneuver about the host taking images and communicating them back to the host in real-time. The Micro-Inspector is capable of receiving commands for additional utility. After operations are complete, the Micro-Inspector will go through an end of life disposal, ensuring it is at a safe distance and minimal risk to the host. The Micro-Inspector spacecraft features an FPGA based avionics design with embedded processors, miniaturized celestial sensors and a MEMS-based IMU for navigation, structured light system for hazard avoidance, triple-junction solar cells for power generation and lithiumion batteries for power storage, and a low pressure butane propulsion system, all in a compact and integrated structure, allowing the Micro-Inspector to operate in close proximity to another space object. Extra mass and volume can be used for additional sensors other than visual inspection to provide a more complete analysis of the local space environment. This paper describes the multi-mission utility of the Micro-Inspector and presents an overview of the spacecraft system and subsystem designs, description of a typical inspection mission scenario, and initial hardware demonstrations of key subsystems, partially integrated with each other in a Micro-Inspector testbed at JPL.


Cost-Effective Earth Observation Missions Outcomes And Visions From The International Iaa Study , Rainer Sandau, Larry Paxton, Jaime Esper Aug 2006

Cost-Effective Earth Observation Missions Outcomes And Visions From The International Iaa Study , Rainer Sandau, Larry Paxton, Jaime Esper

Small Satellite Conference

Cost-effective Earth observation missions – how can they be achieved, what are the cost drivers, what are the application areas, and what are the possible obstacles and how are they surmounted? A recently published study1,2 provides a single reference of all aspects connected with cost-effective missions. This paper concentrates on some of the outcomes of that study. User communities which start to conduct or participate in Earth observation missions using small, economical satellites, and associated launches, ground stations, data distributions structures, and space system management approaches are likely to find this information useful.


The Rise And Fall Of The Capital Asset – An Investigation Into The Aerospace Industry Dynamics And Emerging Small Satellite Missions , Stanley Kennedy, Jr., Todd Mosher, Quinn Young Aug 2006

The Rise And Fall Of The Capital Asset – An Investigation Into The Aerospace Industry Dynamics And Emerging Small Satellite Missions , Stanley Kennedy, Jr., Todd Mosher, Quinn Young

Small Satellite Conference

Many studies have been conducted over the years on the relationship between spacecraft design, mission utility, cost/complexity, and the Aerospace community’s ability to “commoditize” spacecraft designs and/or missions. During the Fifties and Sixties, spacecraft were limited by launch vehicle throw-weight and technical performance limitations, particularly computer processing speeds. During the Seventies and into the Eighties the personal computer revolution enabled more and more processing capability to be utilized in spacecraft bus and mission designs. This resulted in industry developed, large, “Capital” assets that took years to design, develop, integrate, test, and eventually operate. These systems, due to the very nature …


The "Personal Computer" Revolution In Space, Martin Sweeting, Alex Da Silva Curiel, Wei Sun Aug 2006

The "Personal Computer" Revolution In Space, Martin Sweeting, Alex Da Silva Curiel, Wei Sun

Small Satellite Conference

The modular microsatellite concept developed by SSTL has been remarkably successful. It has been used on over 25 missions in the last two decades for a wide range of applications and customers. Its design philosophies are discussed, which have permitted the design to evolve over time, and in particular has permitted space missions to benefit quickly from the continuing development of emerging terrestrial commercial-off-the-shelf technologies. Breakthrough technologies are discussed which have led to increases in capability and utility of small satellite missions. Furthermore, it will be shown that the execution of frequent missions brings its own benefits in providing a …


Volume 43, Number 56: July 25, 2006, University Of North Dakota Jul 2006

Volume 43, Number 56: July 25, 2006, University Of North Dakota

University Letter Archive

No abstract provided.


The Advanced Compton Telescope, S E. Boggs, J Kurfess, James M. Ryan, Elena Aprile, Neil Gehrels, R M. Kippen, Marc Leising, U Oberlack, Cornelia B. Wunderer, Allen Zych, Peter F. Bloser, M Harris, A Hoover, Alexei Klimenk, Dan Kocevski, Mark L. Mcconnell, Peter Milne, E I. Novikova, B F. Phlips, Mark Polsen, Steven Sturner, Derek Tournear, G Weidenspointer, Eric Wulf, A Zoglauer, Matthew Baring, John Beacom, Lars Bildsten, Charles Dermer, Dieter H. Hartman, Margarita Hernanz, David Smith, Sumner Starrfield Jun 2006

The Advanced Compton Telescope, S E. Boggs, J Kurfess, James M. Ryan, Elena Aprile, Neil Gehrels, R M. Kippen, Marc Leising, U Oberlack, Cornelia B. Wunderer, Allen Zych, Peter F. Bloser, M Harris, A Hoover, Alexei Klimenk, Dan Kocevski, Mark L. Mcconnell, Peter Milne, E I. Novikova, B F. Phlips, Mark Polsen, Steven Sturner, Derek Tournear, G Weidenspointer, Eric Wulf, A Zoglauer, Matthew Baring, John Beacom, Lars Bildsten, Charles Dermer, Dieter H. Hartman, Margarita Hernanz, David Smith, Sumner Starrfield

Space Science Center

The Advanced Compton Telescope (ACT), the next major step in gamma-ray astronomy, will probe the fires where chemical elements are formed by enabling high-resolution spectroscopy of nuclear emission from supernova explosions. During the past two years, our collaboration has been undertaking a NASA mission concept study for ACT. This study was designed to (1) transform the key scientific objectives into specific instrument requirements, (2) to identify the most promising technologies to meet those requirements, and (3) to design a viable mission concept for this instrument. We present the results of this study, including scientific goals and expected performance, mission design, …


The Military Ascent Into Space: From Playground To Battleground--The New Uncertain Game In The Heavens, Jackson N. Maogoto May 2006

The Military Ascent Into Space: From Playground To Battleground--The New Uncertain Game In The Heavens, Jackson N. Maogoto

ExpressO

This article seeks to bring to light the various aspects pertaining to the militarization and weaponization of space. It will give an overview of initiatives by the space-faring nations in developing space weaponry, discuss the space law regime and in particular expose its defects in effectively addressing space warfare. It will then proceed to generally juxtapose space warfare with the U.N. Charter regime on the use of force. The article exposes various questions, but does not seek to undertake the ambitious goal of supplying solutions; after all, as the article will demonstrate, the problems are readily evident, but the solutions …


The Complex Task—A Place For Everyone: Session Four Manhattan Christian College, October 1981, Donald Mcgavran Apr 2006

The Complex Task—A Place For Everyone: Session Four Manhattan Christian College, October 1981, Donald Mcgavran

Journal of the American Society for Church Growth

In 1981, Donald McGavran presented a series of lectures at Manhattan Christian College. Over the next few journals, we will publish this series in a continuing effort to honor McGavran and his legacy of Church Growth Missiology. This is the fourth in the series. This article has been transcribed from the taped lectures.


Globalization And The Christian Community, Duane Bajema Mar 2006

Globalization And The Christian Community, Duane Bajema

Pro Rege

No abstract provided.


“Trust Yourself To God” : Friar Francisco Pareja And The Franciscans In Florida, 1595-1702, Albert William Vogt Jan 2006

“Trust Yourself To God” : Friar Francisco Pareja And The Franciscans In Florida, 1595-1702, Albert William Vogt

USF St. Petersburg campus Master's Theses (Graduate)

Friar Francisco Pareja represented the pinnacle of the achievement for the Franciscans in Florida during the Spanish colonial period. But who were the Franciscans? Why were they, and Friar Pareja in particular, so successful as missionaries? The bulk of the writing done thus far on the mission system in Florida has concentrated on retelling the lost story of the native peoples who once inhabited the land. The impact of the missions and the Spanish colony weighed heavily on native cultures and the Franciscans role in this has been discussed. However, little has been said about the religious order itself, and …


Singapore Management University Report To Stakeholders 2006 - 2007, Singapore Management University Jan 2006

Singapore Management University Report To Stakeholders 2006 - 2007, Singapore Management University

Report to Stakeholders

SMU was founded to add diversity to higher education in Singapore, and to serve as a catalyst for change. Eight years on, the University continues to set new benchmarks for nurturing responsible leadership, developing diverse talents and spearheading research that has impact and real-world relevance. In the past academic year, SMU added a new school, graduate programmes and centres of excellence and forged new and deeper relationships with industry, academic and civic partners. These advances built on our existing strengths and moved us forward on a path of purposeful change and growth that reinforced our vision to be a premier …


2006 - 2007, Gardner-Webb University Academic Catalog, Gardner-Webb University Jan 2006

2006 - 2007, Gardner-Webb University Academic Catalog, Gardner-Webb University

Undergraduate Academic Catalogs

2006 - 2007, Gardner-Webb University Academic Catalog. A. Frank Bonner, president.


C-5 Muslims, C-5 Missionaries, Or C-5 Strategies?, Carlos G. Martin Jan 2006

C-5 Muslims, C-5 Missionaries, Or C-5 Strategies?, Carlos G. Martin

Journal of the Adventist Theological Society

No abstract provided.


Position Resolution In Labr3 And Lacl3 Scintillators Using Position-Sensitive Photomultiplier Tubes, Peter F. Bloser, Mark L. Mcconnell, John R. Macri, James M. Ryan, Justin Baker Jan 2006

Position Resolution In Labr3 And Lacl3 Scintillators Using Position-Sensitive Photomultiplier Tubes, Peter F. Bloser, Mark L. Mcconnell, John R. Macri, James M. Ryan, Justin Baker

Space Science Center

Advanced scintillator materials such as LaBr3:Ce and LaCl3:Ce hold great promise for future hard X-ray and gamma-ray astrophysics missions due to their high density, high light output, good linearity, and fast decay times. Of particular importance for future space-based imaging instruments, such as coded-aperture telescopes, is the precise spatial location of individual gamma-ray interactions. We have investigated the position and energy resolution achievable within monolithic (5 cm × 5 cm × 1 cm) LaBr3:Ce and LaCl3:Ce crystals using position-sensitive light readout devices, including a position-sensitive photomultiplier tube and a multi-anode photomultiplier tube. We present the results of these tests and …


Radiation Damage And Activation From Proton Irradiation Of Advanced Scintillators, Peter F. Bloser, Mark L. Mcconnell, John R. Macri, P J. Bruillard, James M. Ryan, W Hajdas Jan 2006

Radiation Damage And Activation From Proton Irradiation Of Advanced Scintillators, Peter F. Bloser, Mark L. Mcconnell, John R. Macri, P J. Bruillard, James M. Ryan, W Hajdas

Space Science Center

We present results from a proton accelerator beam test to measure radiation damage and activation in advanced scintillator materials. Samples of LaBr3:Ce and LaCl3:Ce were exposed to protons from 40-250 MeV at the Proton Irradiation Facility of the Paul Scherrer Institute in Switzerland. Twelve energy bands were used to simulate the spectrum of the South Atlantic Anomaly (SAA), with different samples exposed to the equivalent of 4 months, 1 year, and 5 years of SAA passage. No significant decrease in light output was found due to radiation damage, indicating that these new scintillator materials are radiation tolerant. High-resolution spectra of …


Simulated Performance Of 3-Dti Gamma-Ray Telescope Concepts, Peter F. Bloser, Mark L. Mcconnell, James M. Ryan, Louis M. Barbier, Alan Centa, Stanley D. Hunter, John F. Krizmanic, Jason T. Link, Geoergia A. De Nolfo, Seunghee Son Jan 2006

Simulated Performance Of 3-Dti Gamma-Ray Telescope Concepts, Peter F. Bloser, Mark L. Mcconnell, James M. Ryan, Louis M. Barbier, Alan Centa, Stanley D. Hunter, John F. Krizmanic, Jason T. Link, Geoergia A. De Nolfo, Seunghee Son

Space Science Center

We present Monte Carlo simulations of two astronomical gamma-ray telescope concepts based on the ThreeDimensional Track Imager (3- DTI) detector. The 3-DTI consists of a time projection chamber with two-dimensional, crossedstrip micro-well detector readout. The full three- dimensional reconstruction of charged-particle tracks in the gas volume is obtained from transient digitizers, which record the time signature of the charge collected in the wells of each strip. Such detectors hold great promise for advanced Compton telescope (ACT) and advanced pair telescope (APT) concepts due to the very precise measurement of charged particle momenta that is possible (Compton recoil electrons and electron-positron …


Historic And Future Challenges In Western Water Law: The Case Of Wyoming, Anne Mackinnon Jan 2006

Historic And Future Challenges In Western Water Law: The Case Of Wyoming, Anne Mackinnon

Wyoming Law Review

No abstract provided.


The End Of The World As The Church Used To Know It, Kleber O. Gonçalves Jan 2006

The End Of The World As The Church Used To Know It, Kleber O. Gonçalves

Journal of Adventist Mission Studies

No abstract provided.


Mi 750 Theories And Models Of Mission, Howard A. Snyder Jan 2006

Mi 750 Theories And Models Of Mission, Howard A. Snyder

Syllabi

TEXTS Bevans, Stephen B., and Roger Schroeder. Constants in Context: A Theology for Mission for Today. Orbis, 2003. Pocock, Michael, G. Van Rheenen & D. McConnell. The Changing Face of World Missions. Baker, 2005. Samuel, Vinay, and Chris Sugden. Mission as Transformation: A Theology of the Whole Gospel. Regnum Books International, 1999. Snyder, Howard A. Models of the Kingdom. Abingdon, 1991. Yates, Timothy. Christian Mission in the Twentieth Century. Cambridge University Press, 1996. RECOMMENDED Bosch, David J. Transforming Mission: Paradigm Shifts in Theology of Mission. Orbis, 1991. Stott, John, ed. Making Christ Known: Historic Mission Documents from the Lausanne Movement, …


Mi 770 Christian Mission And Global Culture, Lalsangkima Pachuau Jan 2006

Mi 770 Christian Mission And Global Culture, Lalsangkima Pachuau

Syllabi

TEXTBOOKS Barnett, Mike & Michael Pocock, eds. The Centrality of Christ in Contemporary Missions. Pasadena: William Carey Library, 2005. Friedman, Thomas L. The World is Flat: A Brief History of the Twenty-First Century. New York: Farrar Straus and Giroux, 2005, 2006. Rifkin, Jeremy. The Age of Access: The New Culture of Hypercapitalism Where All of Life is a Paid-For Experience. Tarcher/Putnam, 2000. Schreiter, Robert J, C.PP.S. The New Catholicity: Theology between the Global and the Local. Maryknoll, NY: Orbis Books, 1997. Snyder, Howard A. EarthCurrents: The Struggle for the World’s Soul. Abingdon, 1995.


The Individuality Of Modernity, Jim Park Jan 2006

The Individuality Of Modernity, Jim Park

Journal of Adventist Mission Studies

No abstract provided.


A Contextual Analysis Of The Seventh-Day Adventist Church In Norway, With Suggestions For Renewal And Growth, Kjell Aune Jan 2006

A Contextual Analysis Of The Seventh-Day Adventist Church In Norway, With Suggestions For Renewal And Growth, Kjell Aune

Journal of Adventist Mission Studies

No abstract provided.


Proclamation In Cross-Cultural Context: Missiological Implications Of The Book Of Daniel, Sung Ik Kim Jan 2006

Proclamation In Cross-Cultural Context: Missiological Implications Of The Book Of Daniel, Sung Ik Kim

Journal of Adventist Mission Studies

No abstract provided.


The Student Missionary Experience And Its Impact On Young Adults, Troy Fitzgerald Jan 2006

The Student Missionary Experience And Its Impact On Young Adults, Troy Fitzgerald

Journal of Adventist Mission Studies

No abstract provided.


Editorial, Bruce L. Bauer Jan 2006

Editorial, Bruce L. Bauer

Journal of Adventist Mission Studies

No abstract provided.


Postmodernism: An Emerging Culture, Miroslav Pujic Jan 2006

Postmodernism: An Emerging Culture, Miroslav Pujic

Journal of Adventist Mission Studies

No abstract provided.


Islam On The Web, Bruce Campbell Moyer Jan 2006

Islam On The Web, Bruce Campbell Moyer

Journal of Adventist Mission Studies

No abstract provided.


Communicating Adventist Beliefs In The Muslim Context, Jerald Whitehouse Jan 2006

Communicating Adventist Beliefs In The Muslim Context, Jerald Whitehouse

Journal of Adventist Mission Studies

No abstract provided.