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1999

Articles 1 - 26 of 26

Full-Text Articles in Space Vehicles

Current Design - Structure And Layout, Robert J. Twiggs Nov 1999

Current Design - Structure And Layout, Robert J. Twiggs

Robert "Bob" Twiggs STEM Education Collection

A PowerPoint Presentation created by Professor Bob Twiggs titled "Current Design - Structure and Layout" from November 30, 1999.

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Opal Press Release: October 28, 1999, Robert J. Twiggs Oct 1999

Opal Press Release: October 28, 1999, Robert J. Twiggs

Robert "Bob" Twiggs STEM Education Collection

A press release written by Professor Bob Twiggs titled "Opal Press Release: October 28, 1999."

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Opal Microsatellite, Greg Hutchins Oct 1999

Opal Microsatellite, Greg Hutchins

Robert "Bob" Twiggs STEM Education Collection

A PowerPoint Presentation created by Greg Hutchins on the "OPAL Microsatellite" from October 8, 1999.

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Student Space Program: Stanford University, Robert J. Twiggs Oct 1999

Student Space Program: Stanford University, Robert J. Twiggs

Robert "Bob" Twiggs STEM Education Collection

A PowerPoint Presentation created by Professor Bob Twiggs titled "Student Space Program: Stanford University" from October 3, 1999.

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Darpa Mems Demonstration In Systems Of Dod Relevance, Robert J. Twiggs Oct 1999

Darpa Mems Demonstration In Systems Of Dod Relevance, Robert J. Twiggs

Robert "Bob" Twiggs STEM Education Collection

A PowerPoint Presentation created by Professor Bob Twiggs titled "DARPA MEMS Demonstration in Systems of DoD Relevance" from October of 1999.

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Microsatellite And Formation Flying Technologies On University Nanosatellites, Robert J. Twiggs Sep 1999

Microsatellite And Formation Flying Technologies On University Nanosatellites, Robert J. Twiggs

Robert "Bob" Twiggs STEM Education Collection

A published article that included Professor Bob Twiggs as an author titled "Microsatellite and Formation Flying Technologies on University Nanosatellites" from September 28, 1999.

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Arliss: Student Payload Rocket Launch, Robert J. Twiggs Sep 1999

Arliss: Student Payload Rocket Launch, Robert J. Twiggs

Robert "Bob" Twiggs STEM Education Collection

A report believed to have been written by Professor Bob Twiggs on the "Student Payload Rocket Launch" from September 10-11, 1999.

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University Nanosatellite Distributed Satellite Capabilities To Support Techsat 21, Robert J. Twiggs Aug 1999

University Nanosatellite Distributed Satellite Capabilities To Support Techsat 21, Robert J. Twiggs

Robert "Bob" Twiggs STEM Education Collection

A published article that included Professor Bob Twiggs titled "University Nanosatellite Distributed Satellite Capabilities to Support TechSat 21" from August 23, 1999.

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The Emerald Nanosatellite Mission, Robert J. Twiggs Jul 1999

The Emerald Nanosatellite Mission, Robert J. Twiggs

Robert "Bob" Twiggs STEM Education Collection

A PowerPoint Presentation created by Professor Bob Twiggs titled "The Emerald Nanosatellite Mission" from July 22, 1999.

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Emerald & Orion Formation Flying Experiment, Robert J. Twiggs May 1999

Emerald & Orion Formation Flying Experiment, Robert J. Twiggs

Robert "Bob" Twiggs STEM Education Collection

A PowerPoint Presentation created by Professor Bob Twiggs titled "Emerald & Orion Formation Flying Experiment" from May 5, 1999.

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Student Micro/Nano Space Applications, Robert J. Twiggs Apr 1999

Student Micro/Nano Space Applications, Robert J. Twiggs

Robert "Bob" Twiggs STEM Education Collection

A PowerPoint Presentation created by Professor Bob Twiggs titled "Student Micro/Nano Space Applications" from April 15, 1999.

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Orion Pdr: Ssdl Program Overview, Robert J. Twiggs Apr 1999

Orion Pdr: Ssdl Program Overview, Robert J. Twiggs

Robert "Bob" Twiggs STEM Education Collection

A PowerPoint Presentation created by Professor Bob Twiggs titled "Orion PDR SSDL Program Overview" from April 9, 1999.

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A Comparative Analysis Of The Iridium® And Globalstar® Satellite Transmission Paths, Kenneth E. Crowe Mar 1999

A Comparative Analysis Of The Iridium® And Globalstar® Satellite Transmission Paths, Kenneth E. Crowe

Theses and Dissertations

Globalstar and Iridium will provide valuable global communications assets for business, humanitarian aid and military operations. However, the level of coverage and the quality of the transmission path of these systems are strongly dependent on the latitude of the user and, due to their orbital characteristics, both systems provide reduced levels of coverage at low latitudes. Additionally, the L- and S-Band frequencies utilized by these systems are prone to ionospheric interference at low latitudes. The results of extensive simulation analysis indicate that the Globalstar constellation architecture provides a considerably better transmission path than Iridium's in several important areas, including path …

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Joint Space Systems Operations Program, Robert J. Twiggs, Billy Smith Feb 1999

Joint Space Systems Operations Program, Robert J. Twiggs, Billy Smith

Robert "Bob" Twiggs STEM Education Collection

A PowerPoint Presentation created by Professor Bob Twiggs and Lt. Colonel Billy Smith on the "Joint Space Systems Operations Program" from February 8, 1999.

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Opal Picosatellite Launcher, Robert J. Twiggs Feb 1999

Opal Picosatellite Launcher, Robert J. Twiggs

Robert "Bob" Twiggs STEM Education Collection

A PowerPoint Presentation created by Professor Bob Twiggs titled "OPAL Picosatellite Launcher" from February 3, 1999.

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Opal Launch Opportunity, Robert J. Twiggs Feb 1999

Opal Launch Opportunity, Robert J. Twiggs

Robert "Bob" Twiggs STEM Education Collection

A PowerPoint Presentation created by Professor Bob Twiggs titled "OPAL Launch Opportunity" from February 3, 1999.

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Emerald: A Low-Cost Spacecraft Mission For Validating Formation Flying Technologies, Robert J. Twiggs, Chris Kitts, Jon How Jan 1999

Emerald: A Low-Cost Spacecraft Mission For Validating Formation Flying Technologies, Robert J. Twiggs, Chris Kitts, Jon How

Robert "Bob" Twiggs STEM Education Collection

A PowerPoint Presentation created by Professor Bob Twiggs, Chris Kitts, and Jon How titled "EMERALD: A Low-Cost Spacecraft Mission for Validating Formation Flying Technologies" from January 19, 1999.

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Emerald: A Low Cost Spacecraft Mission For Validating Formation Flying Technologies, Robert J. Twiggs, Jonathan How, Freddy Pranajaya, Bryan Palmintier Jan 1999

Emerald: A Low Cost Spacecraft Mission For Validating Formation Flying Technologies, Robert J. Twiggs, Jonathan How, Freddy Pranajaya, Bryan Palmintier

Robert "Bob" Twiggs STEM Education Collection

A PowerPoint Presentation created by Professor Bob Twiggs, Robert Twiggs, Jonathon How, Freddy Pranajaya, and Bryan Palmintier titled "EMERALD: A Low Cost Spacecraft Mission for Validating Formation Flying Technologies" from 1999.

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Emerald: University Built Satellite Extending Communications Experimentation For The Amateur Community, Robert J. Twiggs, Freddy Pranajaya Jan 1999

Emerald: University Built Satellite Extending Communications Experimentation For The Amateur Community, Robert J. Twiggs, Freddy Pranajaya

Robert "Bob" Twiggs STEM Education Collection

A published report by Bob Twiggs and Freddy Pranajaya titled "Emerald: University Built Satellite Extending Communications Experimentation for the Amateur Community" from 1999.

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Opal: 2nd Ssdl Microsatellite, Robert J. Twiggs Jan 1999

Opal: 2nd Ssdl Microsatellite, Robert J. Twiggs

Robert "Bob" Twiggs STEM Education Collection

A PowerPoint Presentation created by Professor Bob Twiggs titled "OPAL: 2nd SSDL Microsatellite" from 1999.

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Space Systems Development Laboratory, Robert J. Twiggs Jan 1999

Space Systems Development Laboratory, Robert J. Twiggs

Robert "Bob" Twiggs STEM Education Collection

A PowerPoint Presentation created by Professor Bob Twiggs titled "Space Systems Development Laboratory" from 1999.

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Space Systems Development Laboratory: Teach Systems Engineering, Robert J. Twiggs Jan 1999

Space Systems Development Laboratory: Teach Systems Engineering, Robert J. Twiggs

Robert "Bob" Twiggs STEM Education Collection

A PowerPoint Presentation created by Professor Bob Twiggs titled "Space Systems Development Laboratory: Teach Systems Engineering" from 1999.

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Emerald: Mission Statement, Robert J. Twiggs Jan 1999

Emerald: Mission Statement, Robert J. Twiggs

Robert "Bob" Twiggs STEM Education Collection

The mission statement for the EMERALD Project from 1999.

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Opal: A First Generation Microsatellite That Provides Picosat Communications For The Amateur Radio Community, Robert J. Twiggs, James Cutler, Greg Hutchinson, Jeffrey Williams Jan 1999

Opal: A First Generation Microsatellite That Provides Picosat Communications For The Amateur Radio Community, Robert J. Twiggs, James Cutler, Greg Hutchinson, Jeffrey Williams

Robert "Bob" Twiggs STEM Education Collection

A research article written by Bob Twiggs, James Cutler, Greg Hutchinson, and Jeff Williams and published in 1999.

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Opal: Project Objectives & Development, Robert J. Twiggs Jan 1999

Opal: Project Objectives & Development, Robert J. Twiggs

Robert "Bob" Twiggs STEM Education Collection

Project and development objectives for the OPAL Project from 1999.

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Opal Update, Robert J. Twiggs Jan 1999

Opal Update, Robert J. Twiggs

Robert "Bob" Twiggs STEM Education Collection

A PowerPoint Presentation created by Professor Bob Twiggs titled "OPAL Update" from 1999.

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