TAG: GPS history

Happy 20th Anniversary, GPS!

April 24, 2015By
Block-II-IIA-O

The Global Positioning System marks its 20th year of operation on Monday, April 27. Below is a timeline showing important milestones in the 20 years since the constellation reached full operational capability (FOC) on April 27, 1995. FOC was formally announced on July 17, 1995.   GPS Operational History Timeline read more

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

September 4, 2014By
gps-release-92

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

25th Anniversary GNSS Timeline

September 1, 2014By

GPS World’s 25th Anniversary GNSS History Timeline, from the September 2014 Special Supplement “GNSS Industry: Past, Present, and Future.” Download the PDF. read more

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Assured PNT for Our Future: PTA

September 1, 2014By
GDGPS-Parkinson-O

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

‘Flying for GPS': Memoir of a Pioneer Era — Excerpt

July 1, 2014By

Flying for GPS, a chronicle of Len Jacobson’s role in the development and promotion of the Global Positioning System, has just been published. The book spans a 50-year career, during which Jacobson flew 2.5 million miles as a missionary for GPS and as a developer of user equipment. He kept an extensive log of all of his flights, and it... read more

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Jacobson Chronicles Evolution of GPS in New Book

June 4, 2014By
Flying-for-GPS-Jacobson

Flying for GPS, a chronicle of Len Jacobson’s role in the development and promotion of the Global Positioning System, has just been published. The book spans a 50-year career, during which Jacobson flew 2½ million miles as a missionary for GPS and as a developer of user equipment. He kept an extensive log of all of his flights, and it... read more

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The Gold Standard: What’s in a Name?

February 12, 2014By
Don Jewell

Our esteemed editor-in-chief and publisher at GPS World, Alan Cameron, penned an editorial in January concerning claims made by the People’s Republic of China regarding the Gold Standard for PNT (position, navigation and timing). The Chinese recently claimed that its BeiDou system averaged a user range error (URE) of 2.5 meters using zero age of data (ZAOD), 95% of the... read more

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Gordon’s Positioning System, Circa 1970

December 10, 2013By
800px-MonNatForest

One of my oldest and best friends died today – and he was just a kid, only 62. In the prime of his life, and yet I know he led a very full life and had no regrets when he passed on to that highway in the sky — somewhere where he will hopefully not have to ask directions, because neither one of us was very good at that. Indeed, in our youth, both Gordy and I were GPS-challenged long before GPS was a gleam in Dr. Parkinson’s eye. read more

This article is tagged with , and posted in Defense, Opinions