GPS Modernization

Brecht-Clark Replaces Russo as PNT Coordination Office Director

February 11, 2013By

Dr. Jan Brecht-Clark is the new director of the National Coordination Office for Space-Based Positioning, Navigation, and Timing. She has held the post since December 17, 2012. The previous director, Anthony Russo, is now the chief program engineer in the Space Communications and Navigation Division of NASA. The National Coordination Office for Spaced-Based PNT is the permanent staff of the... read more

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Lockheed Martin Completes GPS III Flight Software Milestone

February 6, 2013By
GPS-III-AHI-O

The Lockheed Martin team developing the U.S. Air Force’s next generation Global Position System III satellites has completed a key flight software milestone validating the software’s ability to provide reliable and effective command and control for the GPS III satellites planned for launch into orbit. The GPS III program will affordably replace aging GPS satellites, while improving capability to meet... read more

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Exelis Wins Air Force Contract to Research Low-Cost GPS Alternatives

January 23, 2013By

ITT Exelis has been awarded a $2.15 million contract by the Air Force Research Laboratory (AFRL) to research the development of a small satellite navigation payload to augment the current GPS program. The GPS NAVSAT (Navigation Satellite) program seeks to provide affordable capabilities to aid end-users located in tough-to-reach environments. “The development of smaller satellites — in terms of size,... read more

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Launch of GPS Satellite Struggled through Tense Moments

December 10, 2012By
United Launch Alliance Delta IV rocket blasts off from Space Launch Complex-37 with the U.S. Air Force’s Global Positioning System (GPS) IIF-3 satellite. This launch marks the 9th ULA launch this year, the 54th Evolved Expendable Launch Vehicle (EELV) mission, and the 65th launch since ULA was formed nearly six years ago.

A new report by Spaceflight Now reveals that the launch October 4 of a GPS satellite experienced tense touch-and-go moments. The Delta 4 rocket’s cryogenic upper stage engine experienced a fuel leak that caused a low-thrust condition. Four-and-a-half minutes into the launch, after the first stage had shut down and separated, the trouble began as the RL10B-2 engine on the... read more

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Directions 2013: The Future of GNSS Security

December 1, 2012By

The GNSS interference session this year at the ION-GNSS conference in Nashville was one of the most crowded, confirming the need of all sectors of the community to understand the threats in GNSS and how they can be mitigated. In that context I received one of the most challenging questions of my career: “Can we predict the future of GNSS security?” What is the status of civil and commercial GNSS security today? Which are the threats and risks and how they are mitigated? Where are we going and what shall we expect from the future? read more

Directions 2013: Doing More with Less to Advance GNSS

December 1, 2012By

The history of GNSS shows each year has always been more successful than the year prior, and in 2013 we expect the trend to continue. In the United States, the role of GPS will continue to expand, and the applications for our technology will reach sectors we never imagined. As our international partner countries continue to launch GNSS satellites, and user equipment develops further, our community will increase its globalization, and international cooperation will reach new heights. read more

Directions 2013: Plans Set in Motion for GPS

December 1, 2012By

I believe the future of global navigation satellite systems (GNSS) and particularly GPS will only be limited by our ingenuity and imagination. In terms of economic benefit, GPS contributes $60 billion to our economy, and that’s no stretch considering the positive and real advantages GPS affords us every day through fuel savings, transportation optimization, banking transactions, recreational activities, and certainly the defense of our great nation. read more

Retired GIOVE-A Helps SSTL Demo High-Altitude GPS Fix

November 30, 2012By
Galileo's GIOVE-A retired in June 2012

An experimental GPS receiver, built by Surrey Satellite Technology Limited (SSTL), has successfully achieved a GPS position fix at 23,300 kilometers altitude – the first position fix above the GPS constellation on a civilian satellite. The SGR-GEO receiver is collecting data that could help SSTL to develop a receiver to navigate spacecraft in geostationary orbit (GEO) or even in deep... read more