James P. Reilly Ph.D.

James P. Reilly, PhD., is a past president of ACSM and retired department head of the Department of Surveying Engineering at New Mexico State University.

ARTICLES

The GPS Observer: Insight into the development of OPUS-RS.

Although I don’t normally write about National Geodetic Survey (NGS) software programs, I’m making an exception in this column. OPUS-RS (Online Positioning User Service-Rapid Static) is an operational program available to GPS surveyors at www.ngs.noaa.gov. The inspiration for writing on this topic came from an old friend. Charles R. Schwarz was an office mate of mine when we were graduate students at The Ohio State University.
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The GPS Observer: GPS in 2008 and beyond.

The GPS constellations are now more than 30 years old. The first satellite, launched on Feb. 22, 1978, was in the Block I constellation. It was designated SVN 1/ PRN 4 and remained operational for 21.9 months. A total of 11 Block I satellites were launched from 1978 to 1985; one of the 11 failed to attain orbit. Since 1989, all satellites launched are designated as Block II.
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HxGN Live

More than 3,500 attendees from more than 70 countries attended HxGN Live, the annual Hexagon AB user conference, at the MGM Grand Hotel & Casino in Las Vegas on June 3-6. About 450 keynotes and panel discussions were held, and several companies from around the world exhibited their geospatial products. Here are a few snapshots from the event.

POB

POB March 2015 Cover

2015 March

In this March 2015 issue of POB, we take a look at how a dam project's field work becomes complicated with a river and lush vegetation. Also, read about Williston, North Dakota's population boom due to unprecedented oil exploration and drilling activity.

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