TAG: OPUS

OPUS Unavailable this Weekend for Station Upgrade

August 20, 2015By

The Continuously Operating Reference Station network’s Silver Spring facility will be go offline starting at about 2 p.m. Eastern time Friday, but is expected to be back online by noon Sunday. “Our alternate facility will have full data holdings,” the National Geodetic Survey says on its CORS website. The shutdown is for a building-wide upgrade. The Online Positioning User Service... read more

This article is tagged with , , , , and posted in Latest News, Survey

Do You Know OPUS Can Do This?

March 7, 2014By
GNSS Choke-ring antenna used

I recently was involved in a project outside of the United States. Part of the project involved setting up a couple of RTK base stations. Of course, I wanted the antenna surveyed with reasonable accuracy with respect to ITRF. Even though supporting OPUS outside of the U.S. is out of the scope of the NGS mission (I assume), it works... read more

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

Seven Free Alternatives to OPUS GPS Post-Processing During U.S. Federal Government Shutdown

October 2, 2013By
NGSShutdownScreen-250

On October 1, 2013, the U.S. federal government shut down and furloughed 800,000 non-essential workers. While services considered essential remained active, those considered non-essential services, like the National Geodetic Survey’s Online Positioning User Service (OPUS), were shutdown. OPUS is a free, online GPS post-processing service. If you try to access www.ngs.noaa.gov, the following screen will be displayed: For those of... read more