GPS Modernization

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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Air Force Shares GPS Status at CGSIC at ION GNSS+

September 10, 2014By

News courtesy of CANSPACE Listserv. Two U.S. Air Force officers provided a GPS program update at Tuesday morning’s Civil GPS Service Interface Committee meeting plenary session at the ION GNSS+ 2014 conference in Tampa, Florida. Here are some key points from the presentations by Colonel Matthew Smitham, deputy director, GPS Directorate, and Lieutenant Colonel Todd Benson, Commander, Second Space Operations Squadron: 31 primary... read more

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Lockheed Martin-Built GPS Satellites Reach 200 Years of Operational Life

September 4, 2014By
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The U.S. Air Force’s fleet of GPS Block IIR and IIR-M satellites, manufactured by Lockheed Martin, have reached 200 collective years of operational life. The 20 satellites make up about two thirds of the current GPS constellation. Originally launched between 1997 and 2009 to add capabilities to the GPS constellation and to replace other aging satellites, the 12 GPS IIR and... read more

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SVN-35 to Resume L-Band Transmission

September 4, 2014By

Starting Friday, September 5, GPS satellite SVN-35 will resume transmitting L-band signals using PRN03, according to a Notice Advisory to Navstar Users (NANU) issued today. According to GPS World Almanac editor Richard Langley, the resumption is being done in an effort to determine the exact status of SVN-35′s remaining clock. However, the satellite will remain unusable as the Air Force conducts its tests. Below... read more

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Assured PNT for Our Future: PTA

September 1, 2014By
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Actions Necessary to Reduce Vulnerability and Ensure Availability By Brad Parkinson (From the 25th Anniversary GNSS History Special Supplement) Introduction About 40 years ago, we had a vision for positioning, navigation, and timing (PNT). That vision was more than successful, and became known as GPS. In some respects we have been almost too successful: PNT is frequently taken for granted.... read more

Canadian Science Minister Announces Grant to Langley’s UNB Lab

August 26, 2014By
Professor Langley (center) discusses the UNB geodesy program with Canadian Science Minister Ed Holder (second from left.)

The Canadian Minister of State for science and technology, Ed Holder, visited the University of New Brunswick on July 28 to announce the awarding by the Natural Sciences and Engineering Council of $2.4 million to 28 UNB researchers. He was joined by Keith Ashfield, member of Parliament for Fredericton, where UNB is based, and Craig Leonard, the New Brunswick Minister... read more