GPS Modernization

The System: eLoran Operational on Eastern UK Coast

December 1, 2014By
Bridge of the Galatea, a GLA vessel that carries a eLoran receiver and conducted tests of the new system.

Back-up to Vulnerable GPS Signals Required for Busy Shipping Lanes The General Lighthouse Authorities (GLAs) of the UK and Ireland announced October 31 the initial operational capability of UK maritime eLoran. Seven differential reference stations now provide additional position, navigation, and timing (PNT) information via low-frequency pulses to ships fitted with eLoran receivers. The service will help ensure they can... read more

Directions 2015: What It Takes to Make a Gold Standard

December 1, 2014By
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Last year in my “Directions” article, I emphasized the commitment made by the U.S. government to ensure GPS signals are available to all users, and I shared some of our excitement in the GPS Directorate regarding the modernized capabilities we are developing and fielding. This year I’d like to share with you progress we’ve made in the past 12 months, provide an update on the modernization initiatives, and challenge civil users and receiver companies to innovate and accelerate these modernized capabilities for users worldwide. read more

How U.S. Air Force 19 SOPS Puts GPS Satellites in Orbit

November 21, 2014By
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It's been a busy year for members of the 19th Space Operations Squadron. As operators of the GPS launch and early orbit, anomaly-resolution and disposal system, 19 SOPS members executed a historically high number of satellite launches (four), and disposed of a legacy GPS vehicle, all within the past 10 months. read more

GPS IIF-8 Launched Successfully from Cape Canaveral

October 29, 2014By
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The U.S. Air Force launched the eighth GPS IIF satellite from Cape Canaveral Air Force Station in Florida today at 1:21 Eastern Time, as scheduled. An Atlas V 401 carried the GPS satellite aloft. GPS IIF-8 is one of the next-generation GPS satellites, incorporating various improvements to provide greater accuracy, increased signals, and enhanced performance for users. With this eighth satellite now launched, only four more Block... read more

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Eighth GPS IIF Set to Launch Wednesday

October 23, 2014By
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The Air Force is set to launch the eighth GPS IIF satellite from Cape Canaveral Air Force Station in Florida on October 29. The 18-minute launch window opens at 1:21 p.m. EDT. An Atlas V 401 will launch the GPS IIF-8 mission for the U.S. Air Force. The live webcast will begin at 1:01 p.m. EDT. As described by the Air Force, GPS IIF-8 is... read more

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Massively Online GPS Course Massively Popular

October 14, 2014By

Final results are not yet in, but early indicators presage that Monday’s inaugural webinar with two Stanford professors will be the largest GNSS public event ever staged. Enrollment surpassed 20,000 some time ago, and the free subscription rolls are still open. It’s massive! Per Enge, professor of engineering at Stanford University, where he directs the Stanford Center for Position Navigation... read more

GPS III Payload Arrives, Platform Acceptance Tests Next

September 22, 2014By

Enter GPS III. The long-awaited navigation payload for the next-generation satellite pulled into its new temporary home over the September 13 weekend, the Lockheed Martin Space Systems facility in Littleton, Colorado. Lockheed is the U.S. Air Force’s  prime contractor for the first batch of eight GPS III satellites. Exelis Geospatial Systems has committed to delivering the payloads for the second,... read more

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Seventh GPS-IIF Satellite Set to Healthy and Usable

September 22, 2014By

The seventh GPS-IIF satellite, SVN-68/PRN-09, launched on August 2, was set to healthy and usable Sunday night, according to Rick Hamilton, CGSIC executive secretariat of the USCG Navigation Center. The change brings the number of satellites transmitting the L2C signal to 13, and those transmitting the L5 signal to seven. The next GPS-IIF satellite, IIF-8/SVN-69, is tentatively scheduled for launch on October  29. Below... read more

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