A: System Categories

GPS Satellite Number 23 is 20 Years Old - And Counting
November 30, 2010

GPS Satellite Number 23 is 20 Years Old – And Counting

(From top) GPS Block I, Block IA, Block II, Block IIA

A 20-year-old GPS Block IIA satellite designated as space vehicle number 23 (SVN23) is setting new records in longevity among the durable spacecraft of the Global Positioning System.

Built by Boeing (formerly Rockwell Corporation) and launched on November 26, 1990, SVN23 has operated longer than any other GPS satellites — far exceeding its design life of 7.5 years.  Set healthy shortly after launch for navigation and timing use, the GPS Directorate (formerly GPS Wing) at Los Angeles Air Force Base predicts that the satellite will last another 12–18 months.

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By Inside GNSS
United States Appeals Courts Disagree on GPS Technology and Privacy Rights

United States Appeals Courts Disagree on GPS Technology and Privacy Rights

District of Columbia Court of Appeals in Washington D.C., USA

Secret tracking using GPS may be simple, undetectable and cheap — but appeals courts can’t decide if it’s constitutional.

In 1791, when the Fourth Amendment to the United States Constitution was ratified, it certainly seemed specific enough for the needs of the time. The new Americans were tired of colonial powers freely searching and seizing, with general warrants that were as full of holes as Swiss cheese.

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By Inside GNSS
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GeoForm+ 2011
November 14, 2010

GeoForm+ 2011

The 8th GeoForm+  trade fair will take place at EcoCentre Sokoniki in Moscow, Russia from March 15 through March 18, 2011.

It includes these specialized exhibitions of interest to Inside GNSS readers:

GeoMap covers geodesy, cartography and geographic information management systems.

GeoWAY covers GLONASS and GPS, intelligent transporation systems on land and sea, AUTOSPUTNIK and navigation using the GPS system.

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By Inside GNSS
AUVSI Unmanned Systems North America 2011
November 13, 2010

AUVSI Unmanned Systems North America 2011

The annual AUVSI Unmanned Systems North America conference and exhibition will take place at the Walter E. Washington Convention Center in Washington D.C. from August 16 through 19 2011.

It features 100 technical panels and presentations, workshops and poster session on the state of the unmanned systems market. It covers military, civil and commercial applications for air, ground and maritime vehicles

The industry exhibition includes more than 450 companies.

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By Inside GNSS
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Goodbye, GPS Wing; Hello, GPS Directorate
November 9, 2010

Goodbye, GPS Wing; Hello, GPS Directorate

The U.S. Air Force will inactivate its GPS Wing at Los Angeles Air Force Base on Wednesday (November 10) and replace it with the Global Positioning Systems Directorate.

Reflecting mostly the taxonomy and naming conventions of military commands and organization, the new designation is expected to bring little change in the new organization’s leadership or scope of responsibilities, although the organization will no longer have headquarters status. Air Force Groups will become Divisions and Squadrons, Branches.

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By Inside GNSS
Munich Satellite Navigation Summit 2011
November 7, 2010

Munich Satellite Navigation Summit 2011

Residenz entrance, familiar to Munich Satellite Navigation Summit attendees.

The 2011 Munich Satellite Navigation Summit will take place from March 1 through 3 in Der Residenz, the palace of the old Bavarian royal family and now home to four museums. 

The event features high-level discussions about all of the world’s navigation satellite systems. It is organized by the Institute of Geodesy and Navigation at University FAF Munich.

The technical program begines with a plenary presentation on "GNSS in Balance," followed by a Bavarian State Reception.

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By Inside GNSS
LMCO Ships GPS III Simulator to Aerospace Corporation, Maintains Program Schedule Lead
November 5, 2010

LMCO Ships GPS III Simulator to Aerospace Corporation, Maintains Program Schedule Lead

Artist’s illustration of GPS III. Lockheed Martin image

The Aerospace Corporation has completed acceptance testing on the GPS III Bus Real Time Simulator (BRTS) from the Lockheed Martin–led team developing the next-generation satellite program, keeping the initiative ahead of schedule.

The BRTS is a specialized piece of test equipment designed to reduce risk and ensure overall mission success for the lifecycle of the GPS III program. The simulator will enable Aerospace Corporation to independently validate GPS III bus flight software for the U.S. Air Force.

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By Inside GNSS
GPS Outages, Bad Receivers, System Architecture on Agenda for Space-Based PNT Advisory Board
November 3, 2010

GPS Outages, Bad Receivers, System Architecture on Agenda for Space-Based PNT Advisory Board

The U.S. Space-Based Positioning, Navigation, and Timing (PNT) Executive Committee (ExCom) has issued a new set of tasks that it wants its advisory board to take up over the next 14 months with topics including civil and commercial GPS receivers that don’t comply with technical specifications, a national PNT architecture plan, and the effects of PNT outages particularly on the nations cyber networks.

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By Inside GNSS
Asia Oceania Regional Workshop on GNSS
November 2, 2010

Asia Oceania Regional Workshop on GNSS

Thailand’s largest island and a popular tourist destination

The 2nd Asia Oceania Regional Workshop on GNSS will be held in Melbourne, Australia, on November  21–22, in the two days before the Asia-Pacific Regional Space Agency Form (APRSAF) annual meeting in the city.

The free event will take place at the Royal Melbourne Institute of Technology (RMIT) University in Storey Hall at 342 Swanston Street. Registration is required on the event website.

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By Inside GNSS
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