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Autonomous Telemetry Collection For Single-Processor Small Satellites , Dave Speer Aug 2003

Autonomous Telemetry Collection For Single-Processor Small Satellites , Dave Speer

Small Satellite Conference

For the Space Technology 5 mission, which is being developed under NASA’s New Millennium Program, a single spacecraft processor will be required to do on-board real-time computations and operations associated with attitude control, up-link and down-link communications, science data processing, solid-state recorder management, power switching and battery charge management, experiment data collection, health and status data collection, etc. Much of the health and status information is in analog form, and each of the analog signals must be routed to the input of an analog-to-digital converter, converted to digital form, and then stored in memory. If the micro-operations of the analog …

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Conceptual Design Of An Ip-Based Satellite Bus Using Internet Technologies , Richard Slywczak Aug 2003

Conceptual Design Of An Ip-Based Satellite Bus Using Internet Technologies , Richard Slywczak

Small Satellite Conference

The goal of this paper is to develop a generic, reconfigurable spacecraft bus architecture that implements IP-based protocols and networking hardware that is common to terrestrial networks. First, a description of the communications architecture for an operational Earth Science mission is presented. The Tropical Rainfall Measuring Mission (TRMM) was selected as an example that shows a typical Earth science mission with a nice complement of varying data rate instruments. We will be able to show through the satellite architecture where IP-based protocols will benefit a new design. Secondly, we develop an IP-based satellite bus design with an Ethernet backbone using …

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Solar Cell Measurement System For Nps Spacecraft Architecture And Technology Demonstration Satellite, Npsat1 , John Salmon, Ron Phelps, Sherif Michael, Herschel Loomis Aug 2003

Solar Cell Measurement System For Nps Spacecraft Architecture And Technology Demonstration Satellite, Npsat1 , John Salmon, Ron Phelps, Sherif Michael, Herschel Loomis

Small Satellite Conference

Rapid changes in semiconductor technologies over the last decade have spawned new interest in developing higher efficiency solar cells which are capable of using a broader part of the light spectrum. The Naval Postgraduate School’s NPSAT1, launching in the Spring of 2006, will include a subsystem which can be used to measure the performance of the new solar cells, providing an ability to combine functions previously available on only individual discrete components onto a single chip. The ability can help make space more accessible by reducing cost and complexity. The Solar Cell Measurement System (SMS) is a radiation hardened microcontroller …

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Frisbee – A Platform For A Small Satellite Science Swarms, Alex Da Silva Curiel, Max Meerman, Doug Liddle, Steve Schwartz, Martin Sweeting Aug 2003

Frisbee – A Platform For A Small Satellite Science Swarms, Alex Da Silva Curiel, Max Meerman, Doug Liddle, Steve Schwartz, Martin Sweeting

Small Satellite Conference

The FRISBEE multi-mission platform is presented, alongside the mission concept for SWARM (Space Weather Advanced Research Mission), a fleet of 30 or more microsatellites launched in groups of 5 and covering a range of local times and inclinations. The aim of this mission is to develop an understanding of the dynamic, global, and multiscale solar terrestrial interactions. The scientific payload is restricted to a dc magnetometer and electrostatic charged particle (ion and electron) analyser, providing both high time resolution and characterisation of collisionless plasma processes. The baseline satellite swarm can be launched in a variety of configurations and be augmented …

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The New Mexico State University Satellite (Nmsusat) Mission, Stephen Horan, S. Stochaj, L. Alvarez, W. Ege, V. Romero, F. Zamarron, C. Boehmer, J. Cecil, J. Clark, G. Guyer, E. Johnson, S. Ranade, L. Riley Aug 2003

The New Mexico State University Satellite (Nmsusat) Mission, Stephen Horan, S. Stochaj, L. Alvarez, W. Ege, V. Romero, F. Zamarron, C. Boehmer, J. Cecil, J. Clark, G. Guyer, E. Johnson, S. Ranade, L. Riley

Small Satellite Conference

The New Mexico State University Satellite (NMSUSat) is part of the University Nanosat 3 program managed by the Air Force Research Laboratory and it is being developed at New Mexico State University. The planned Science Mission for the satellite is to perform Near Ultra Violet emission intensity measurements of the earth's upper atmosphere over the night side of the earth. The Engineering Mission is to demonstrate techniques for distributed data relaying over the Internet and to conduct an energy storage experiment to assess the operational characteristics of double layer capacitors. The Educational Mission of the program to assist in the …

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The Living With A Star Geospace Missions , Andrew Lewin, Laurence Frank Aug 2003

The Living With A Star Geospace Missions , Andrew Lewin, Laurence Frank

Small Satellite Conference

The Geospace Missions are the second major mission element in NASA’s Living With a Star program. The missions are designed to help scientists understand, and eventually predict, the response of the geo-space system to solar activity. The investigations will be carried out by two pairs of spacecraft and a high-altitude far ultraviolet (FUV) imager. This observatory network provides the first opportunity to make multi-point in situ measurements of the ionosphere-thermosphere (I-T) system and the radiation belts (RB) with coordinated measurements between the two regions. The first two spacecraft are the I-T Storm Probes (I-TSP), which will study mid-latitude ionospheric vari-ability. …

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Rapideye - An Earth Observation Smallsat Constellation For Daily Agricultural Monitoring, George Tyc, Keith Ruthman, Paul Stephens, Alex Wicks, Tim Butlin, Martin Sweeting, Manfred Krischke, Michael Oxfort Aug 2003

Rapideye - An Earth Observation Smallsat Constellation For Daily Agricultural Monitoring, George Tyc, Keith Ruthman, Paul Stephens, Alex Wicks, Tim Butlin, Martin Sweeting, Manfred Krischke, Michael Oxfort

Small Satellite Conference

The RapidEye mission is a commercial remote sensing mission by the German company Rapi-dEye AG. The RapidEye mission will deliver information products for various customers in the agricultural insurance market, large producers, international institutions and cartography. The mission that generates these information products consists of a constellation of five identical small satellites and a sophisticated ground infrastructure based on proven systems. The five satellites will be placed in a single sun-synchronous orbit of approximately 620 kilome-ters, with the satellites equally spaced over the orbit. The satellites will each carry a 5 band multi-spectral optical imager with a ground sampling distance …

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Scout: A Modular, Multi-Mission Spacecraft Architecture For High Capability Rapid Access To Space , Aaron Rogers, Glen Cameron, Luis Jordan Aug 2003

Scout: A Modular, Multi-Mission Spacecraft Architecture For High Capability Rapid Access To Space , Aaron Rogers, Glen Cameron, Luis Jordan

Small Satellite Conference

The long lead and cycle times currently associated with development and launch of satellite systems have established a prohibitive environment for both low-cost access and responsive deployment of tactical capability to orbit. With the advent of the RASCAL program — poised to offer launch capability to LEO with less than 24 hours notice — the motivation for a comparable, multi-mission, rapidly configurable microsatellite is clear. The Small, Smart Spacecraft for Observation and Utility Tasks (SCOUT) will enable this capability while summarily addressing the production and logistic challenges essential to its implementation. SCOUT will challenge the traditional spacecraft systems approach by …

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Opening The Door To Smart Power Management In Small Satellites, Patrick Shriver Aug 2003

Opening The Door To Smart Power Management In Small Satellites, Patrick Shriver

Small Satellite Conference

The objective of this research is to develop a new power management paradigm that will maximize the capabilities of small satellites and therefore help provide cost-effective access to space. Ground-based, mobile processing systems have experienced a similar engineering problem as the small satellite and have developed successful power management methods to provide increased energy and cost savings with improved computing performance. It is envisioned that the new paradigm of smart power for small satellites can utilize these methods to increase autonomy and enable onboard processing. An onboard, processing payload concept and initial software simulation results are discussed.

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Ncube: The First Norwegian Student Satellite, Å.G. Riise, B.C.H. Samuelsen, N. Sokolova, H.D. Cederblad, J. Fasseland, C.O. Nordin, E.T. Sæther, J. Otterstad, K.M. Fauske, O.E.N. Eriksen, F.M. Indergaard, K. Svartveit, P.E. Furebotten Aug 2003

Ncube: The First Norwegian Student Satellite, Å.G. Riise, B.C.H. Samuelsen, N. Sokolova, H.D. Cederblad, J. Fasseland, C.O. Nordin, E.T. Sæther, J. Otterstad, K.M. Fauske, O.E.N. Eriksen, F.M. Indergaard, K. Svartveit, P.E. Furebotten

Small Satellite Conference

nCube is a picosatellite complying with the CubeSat standard. It is built completely by students in their final year of their Master education in different Norwegian Institutes. The cross institutional project is mainly sponsored by Norwegian space related industry. The satellite is due to launch March 2004 from Dnepr in Ukraine. The concept incorporates use of a miniaturized version of an Automatic Identification System receiver which will be uploaded the coordinates of reindeer herds, making the Agricultural University of Norway able to track them. The satellite will also be able to surveillance regular marine traffic with certain filter options. nCube …

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Alsat-1 First Year In Orbit, John Cooksley, Alex Da Silva Curiel, Paul Stephens, Lee Boland, Susan Jason, Wei Sun, Martin Sweeting Aug 2003

Alsat-1 First Year In Orbit, John Cooksley, Alex Da Silva Curiel, Paul Stephens, Lee Boland, Susan Jason, Wei Sun, Martin Sweeting

Small Satellite Conference

The role of satellites in medium and high-resolution reconnaissance of the Earth has been well demonstrated in recent years through missions such as Landsat, SPOT, IKONOS, EROS, ImageSat and Quickbird. Medium resolution data products have added significantly to Earth science, but commercial markets have concentrated on enhancing resolution. The markets for such high-resolution data products are well served, and are likely to become more competitive with further planned high-resolution missions. The small satellite sector has concentrated on reducing the cost of specialised data products that are ill served by current missions, and on the development of systems providing niche services. …

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Jason 1 : Lessons Learned From The Development And 1,5 Year In Orbit, Thierry Lafon Aug 2003

Jason 1 : Lessons Learned From The Development And 1,5 Year In Orbit, Thierry Lafon

Small Satellite Conference

The JASON-1 small satellite was launched in December 2001 and has performed successfully since one year and a half, with in-flight performances exceeding expectations. The JASON-1 mission is dedicated to ocean and climate forecasting, in continuation to the successful TOPEX-POSEIDON satellite, launched in 1992. This project is a cooperation between NASA and CNES. JASON-1 is the first satellite based on the small PROTEUS bus, a cooperative partnership between CNES and Alcatel Space Industries. This project was initiated in 1993 and entered in 1996 in its development phase. At that time, the "Faster, Better, Cheaper" guidelines were driving the decisions and …

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Chips: A Nasa University Explorer Astronomy Mission, Ellen Taylor, Mark Hurwitz, Will Marchant, Michael Sholl, Simon Dawson, Jeff Janicik, Jonathan Wolff Aug 2003

Chips: A Nasa University Explorer Astronomy Mission, Ellen Taylor, Mark Hurwitz, Will Marchant, Michael Sholl, Simon Dawson, Jeff Janicik, Jonathan Wolff

Small Satellite Conference

On January 12th, 2003, the Cosmic Hot Interstellar Plasma Spectrometer Spacecraft (CHIPSat) launched successfully from Vandenberg Air Force Base as a secondary payload on a Delta II booster. CHIPSat completed commissioning in February 2003, and is now a fully operational observatory. The main science objective is to measure extreme ultraviolet emissions from the interstellar medium. Data on the distribution and intensity of these emissions allow scientists to test competing theories on the formation of hot interstellar gas clouds surrounding our solar system. CHIPSat is the first satellite in NASA's University-class Explorers Program (UNEX) to make it to orbit. The UNEX …

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Aeroastro’S Escort – A Microsatellite For On-Orbit Inspection Of Space Assets , Aaron Jacobovits, Thomas Vaneck Aug 2003

Aeroastro’S Escort – A Microsatellite For On-Orbit Inspection Of Space Assets , Aaron Jacobovits, Thomas Vaneck

Small Satellite Conference

The recent tragic loss of the Space Shuttle Columbia highlights the need for the independent, in-situ inspection of operational satellites. To address this problem, AeroAstro has been designing an autonomous companion microsatellite named Escort™. Given the extremely high value of major operational satellites, AeroAstro believes that responsible stakeholders should insist on having a relatively low-cost Escort-like microsatellite accompanying their satellites. Other critical roles that Escort can fill include on-orbit inspection of a technology validation satellite, situational awareness of the “space neighborhood” around another satellite, and even aiding the deployment and periodic calibration of another satellite. Each Escort is intended to …

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Xss-10 Micro-Satellite Flight Demonstration Program, Thomas Davis, Major Tammy Baker, Timothy Belchak, William Larsen Aug 2003

Xss-10 Micro-Satellite Flight Demonstration Program, Thomas Davis, Major Tammy Baker, Timothy Belchak, William Larsen

Small Satellite Conference

The Air Force Research Laboratory (AFRL) is building and demonstrating a new class of low-cost satellites, referred to as “micro-satellites,” weighing in at less than 100 kilograms. These new satellites are being flown under the Experimental Spacecraft System (XSS) program and will demonstrate the capabilities of microsatellites for future Air Force missions. The XSS series demonstrates basic proximity operations capabilities onorbit and will address both technical and operational risks before committing to micro-satellite system development programs. The first mission, XSS-10, resulted in a 31-kilogram micro-satellite being launched as a secondary mission on a Boeing Delta II expendable launch vehicle along …

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Jpl University Microsatellite Program, Robert Shotwell Aug 2003

Jpl University Microsatellite Program, Robert Shotwell

Small Satellite Conference

The purpose of this paper is to share with the community JPL activities associated with micro spacecraft development and the opportunities for involvement by universities. Community understanding will help promote such programs which will lead to enhanced science at substantially reduced prices. In January of 2003, JPL initiated a University microspacecraft program. That program is currently being funded through the JPL Chief Scientist’s Office. Recognizing that many Universities have or are developing microspacecraft programs, JPL is funding a liaison to those programs in the interest of providing technical guidance and mission relevance through NASA identified science interests. In addition, JPL …

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Designing For Espa: The Challenges Of Designing A Spacecraft For A Launch Accommodation Still In Development, Bob Minelli, Steve Haase, Mark Barton, Jay Borges, Clay Hunt, Jon Miller Aug 2003

Designing For Espa: The Challenges Of Designing A Spacecraft For A Launch Accommodation Still In Development, Bob Minelli, Steve Haase, Mark Barton, Jay Borges, Clay Hunt, Jon Miller

Small Satellite Conference

The Evolved Expendable Launch Vehicle (EELV) Secondary Payload Adapter (ESPA) is a joint program developed by the DoD Space Test Program and the Space Vehicles Directorate of the Air Force Research Laboratory. It is designed to carry six small satellites as secondary payloads, weighing up to 400 pounds each, as well as a 15,000-pound primary payload into space on the next generation of expendable US launch vehicles. The purpose of this paper is to present the small spacecraft user community with its first insight into the unique challenges of launching on the Delta-IV/ESPA configuration, based on experiences from the Space …

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Sherpa: A Flexible, Modular Spacecraft For Orbit Transfer And On-Orbit Operations , Aaron Rogers, Paul Gloyer, Lt. Randall Carlson, Steven Buckley Aug 2003

Sherpa: A Flexible, Modular Spacecraft For Orbit Transfer And On-Orbit Operations , Aaron Rogers, Paul Gloyer, Lt. Randall Carlson, Steven Buckley

Small Satellite Conference

The Department of Defense Space Test Program is responsible for launching small experimental payloads and demonstration technologies as directed by the Space Experiments Review Board (SERB). The Shuttle Expendable Rocket for Payload Augmentation (SHERPA) program will develop a highly functional space vehicle – with several variants – that incorporates a scaleable, modular architecture to support a wide variety of missions, technologies, and configurations. The initial application of SHERPA will be as an orbit transfer vehicle designed to raise a payload from a low Space Transportation System (STS) flight altitude to an orbit with a nominal one-year lifetime. This capability will …

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Helping Cob Students Use Their Business Degree To Get Into Law School, Jon Jeffery Carlston Aug 2003

Helping Cob Students Use Their Business Degree To Get Into Law School, Jon Jeffery Carlston

Undergraduate Honors Capstone Projects

Getting into law school these days has become ultra-competitive. GPA's and LSAT scores that worked just a few years ago will not get a law school applicant into the same schools they will today. The economy as well as the attractiveness of a law degree (J.D.) have lead to record increases in the number of students applying for law school. Law schools have been forced to "raise the bar" in order to deal with the demand. Because this is the case, undergraduate students must find ways to distinguish themselves among applicants, stay on top of the application process, and achieve …

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Fall Calving In The Intermountain West, Dale R. Zobell, Craig Burrell, Darrell Rothlisberger, Eleanor Jenson Aug 2003

Fall Calving In The Intermountain West, Dale R. Zobell, Craig Burrell, Darrell Rothlisberger, Eleanor Jenson

All Current Publications

Fall calving has been practiced by beef producers for many years, although in small numbers relative to spring calving. The spring calf crop has been a traditional event for most beef producers and probably will continue to be. There are distinct advantages, however, to fall calving which producers could take advantage of. The potential for higher conception and weaning rates, price premiums and the elimination of calf scours are among the reasons some beef producers have switched from spring calving their herd to fall calving.

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Growing And Using Herbs, Larry A. Sagers Jul 2003

Growing And Using Herbs, Larry A. Sagers

All Archived Publications

No abstract provided.

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Growing Strawberries In Utah, Larry A. Sagers Jul 2003

Growing Strawberries In Utah, Larry A. Sagers

All Archived Publications

No abstract provided.

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Wildlife-Human Interactions In National Parks In Canada And The Usa, Dr. Alistair J. Bath, Jody W. Enck, National Park Service, U.S. Department Of The Interior Jul 2003

Wildlife-Human Interactions In National Parks In Canada And The Usa, Dr. Alistair J. Bath, Jody W. Enck, National Park Service, U.S. Department Of The Interior

All U.S. Government Documents (Utah Regional Depository)

The chance to view wildlife draws millions of visitors each year to the national parks of North America. The combination of a large number of people and abundant wildlife leads to a variety of wildlife-human interactions. In this paper we explore the nature of those wildlife-human interactions, theoretical frameworks social scientists are using to understand those interactions, and approaches used by national parks across North America to manage those interactions.

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The Development Of A Human Resource Curriculum For Institutions Experiencing Rapid Growth, Susan R. Madsen, Anita L. Musto, Tyler Hall Jul 2003

The Development Of A Human Resource Curriculum For Institutions Experiencing Rapid Growth, Susan R. Madsen, Anita L. Musto, Tyler Hall

Marketing and Strategy Faculty Publications

One key challenge with the growth and expansion of institutions of higher education is the development of cutting-edge degree programs and emphases. Because human resources is constantly changing, new academic programs need to be designed, and current ones updated to reflect these dynamic changes. This article reports research conducted to aid in the development of a human resources emphasis in a School of Business at a fast­ growth institution. Results of this study will assist academia in designing/redesigning human resource programs to ensure alignment with the current knowledge and competency required for successful human resource leadership in today's workplace.

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Applicability Of Risk-Based Management And The Need For Risk-Based Economic Decision Analysis At Hazardous Waste Contaminated Sites, I. Khadam, Jagath J. Kaluarachchi Jul 2003

Applicability Of Risk-Based Management And The Need For Risk-Based Economic Decision Analysis At Hazardous Waste Contaminated Sites, I. Khadam, Jagath J. Kaluarachchi

Civil and Environmental Engineering Faculty Publications

Decision analysis in subsurface contamination management is generally carried out through a traditional engineering economic viewpoint. However, new advances in human health risk assessment, namely, the probabilistic risk assessment, and the growing awareness of the importance of soft data in the decision-making process, require decision analysis methodologies that are capable of accommodating non-technical and politically biased qualitative information. In this work, we discuss the major limitations of the currently practiced decision analysis framework, which evolves around the definition of risk and cost of risk, and its poor ability to communicate risk-related information. A demonstration using a numerical example was conducted …

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Gardening Basics, Larry A. Sagers Jun 2003

Gardening Basics, Larry A. Sagers

All Archived Publications

No abstract provided.

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Crystallization Of Sunflower Oil Waxes, Silvana Martini, M. C. Anon Jun 2003

Crystallization Of Sunflower Oil Waxes, Silvana Martini, M. C. Anon

Nutrition, Dietetics, and Food Sciences Faculty Publications

Activation free energies of nucleation (ΔG c ) were calculated using induction times of crystallization measurements. Results showed that ΔG c decreased exponentially as wax concentration increased at a constant crystallization temperature (T c ). In contrast, for a constant supersaturation, ΔG c increased from 12 to 22°C but decreased between 22 and 35°C. Melting behavior of purified waxes and solutions of purified waxes in sunflower oil were studied by DSC after crystallization at fast and slow cooling rates (20 and 1°C/min, respectively). Low supercooling temperatures (T c >65°C) showed an increase in the onset temperature (T 0 ) as …

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Are You Drowning In Personal Finance Papers? What To Keep And What To Toss, Barbara Rowe, Heidi Leblanc Jun 2003

Are You Drowning In Personal Finance Papers? What To Keep And What To Toss, Barbara Rowe, Heidi Leblanc

All Current Publications

No abstract provided.

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2002 Annual Report, Various Authors May 2003

2002 Annual Report, Various Authors

Annual Reports

No abstract provided.

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The Evaluation Of A Graphical Pulmonary Display In Anesthesiology, S. Blake Wachter, Noah Syroid, James Agutter, Robert Albert, Frank Drews, Dwayne Westenskow May 2003

The Evaluation Of A Graphical Pulmonary Display In Anesthesiology, S. Blake Wachter, Noah Syroid, James Agutter, Robert Albert, Frank Drews, Dwayne Westenskow

Utah Space Grant Consortium

We have developed graphic technology to display data from the respiratory monitors used during anesthesia. The display uses color, texture, shape and emergent features to highlight abnormal pulmonary physiology. Nineteen anesthesiologists participated in a simulator based evaluation (METI, Sarasota, FL.). Half the subjects used the metaphor display and half did not. Each subject was trained for 10 minutes on the pulmonary display. The time difference during the obstructed endotracheal tube did prove significant (p=0.02) in favor of the pulmonary display condition. During the intrinsic PEEP scenario, the subjects treated the patient earlier (positive trend p=0.l) with the pulmonary display compared …

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