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DoT Rescues NDGPS Project
April 4, 2008

DoT Rescues NDGPS Project

The Nationwide Differential Global Positioning System (NDGPS) program has been salvaged from the political limbo in which it has resided for more than a year.

Following completion of an assessment by the U.S. Department of Transportation (DoT), the agency has decided to continue full NDGPS operations. Currently, 86 stations are operating with support from three federal agencies: the U.S. Coast Guard (USCG, 39 sites), the Army Corps of Engineers (9 site), and the DoT (38 sites operated and maintained by the USCG under contract).

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By Glen Gibbons
Jules Verne Automatic Transfer Vehicle Guided to ISS by Thales Alenia GPS System

Jules Verne Automatic Transfer Vehicle Guided to ISS by Thales Alenia GPS System

ATV Docking with International Space Station, NASA image

Europe’s Jules Verne Automatic Transfer Vehicle (ATV) that docked Thursday (April 3) at the International Space Station (ISS) is operating with a guidance, navigation control (GNC) system based on a GPS receiver developed by Thales Alenia Space Italia (TASI).

The GNC unit provides accurate position and velocity information for the ATV orbit control and rendezvous operation with the ISS. The Jules Verne completed its first space cargo voyage — 25 days long — docking the 10,470-kilogram (23,034-pound) ATV with the station, orbiting the Earth at 28,000 kilometers per hour.

According to the European Space Agency (ESA), this docking marks the beginning of Jules Verne’s main servicing mission to deliver cargo, propellant, water, oxygen and propulsion capacity to the station, as well as ESA’s entry into the restricted club of the partners able to access the orbital facility by their own means.

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By Glen Gibbons
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First Civil Funds for GPS Program
April 2, 2008

First Civil Funds for GPS Program

FY09 GPS Budget Request; FAA Line Item

The GPS program has passed a milestone of sorts with the first allocation of funds from civil agencies to pay for a portion of the core GPS budget.

The Fiscal Year 2008 (FY08) budget for the U.S. Department of Transportation (DoT) sets aside $7.2 million as the first installment on the civil share of GPS modernization efforts, including the L1C signal that will be transmitted on the GPS Block III satellites and costs of monitoring the civil GPS signals in the modernized ground control segment (OCX). For the FY09 budget, the Bush administration has requested a $20.7 million allocation. The total five-year civil contribution (FY09-13) is expected to be more than $200 million.

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By Glen Gibbons
GIOVE-B Reaches Baikonur Launch Site, Undergoes Pre-Flight Check
March 20, 2008

GIOVE-B Reaches Baikonur Launch Site, Undergoes Pre-Flight Check

GIOVE-B, the second Galileo in-orbit validation satellite, has arrived safely at the Baikonur Cosmodrome in Kazakhstan, where it is undergoing pre-flight checks in preparation for its launch early on April 26.

After completing final tests at the European Space Agency (ESA) space technology center in Noordwijk, The Netherlands, the spacecraft was transported to Baikonur aboard an Antonov An-124 cargo aircraft.

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By Glen Gibbons
Another Successful GPS Launch, Plan Produce Back-Up and Improved Capability
March 11, 2008

Another Successful GPS Launch, Plan Produce Back-Up and Improved Capability

Successful launch of a GPS Block IIR satellite on March 15 continues a U. S. Air Force initiative to bolster the nation’s GNSS constellation against anticipated failures of aging on-orbit spacecraft while improving system accuracy and accelerating the availability of new military signals.

An analysis of the condition of subsystems on GPS satellites in orbit last year indicated that up to nine GPS space vehicles (SVs) could fail in the near future, according to Col. David Madden, commander of the GPS Wing at the Space & Missile Systems Center, Los Angeles Air Force Base, California. “That’s what drove us down this path of launching five in one year,” said in a recent news conference.

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By Glen Gibbons
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Astrium-Allsat JV Launches GNSS Reference Network Services across Europe
March 6, 2008

Astrium-Allsat JV Launches GNSS Reference Network Services across Europe


Astrium Services and Allsat GmbH network+services have created a joint venture, AXIO-NET GmbH, to offer precise navigation and positioning services across Europe.

The companies, which formed a JV in September 2007 to operate the German ascos service, have created a trans-European brand — AXIO-NET  — to extend the service, based on a network of reference stations that generate high-accuracy differential corrections of GPS and GLONASS satellite signals.

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By Glen Gibbons
China's Compass/Beidou: Back-Track or Dual Track?
March 2, 2008

China’s Compass/Beidou: Back-Track or Dual Track?

A recent presentation on Compass/Beidou that appeared to reflect a step back from China’s GNSS program more likely represented a step sideways — and an implicit acknowledgment of the complex political and technical elements involved in such an enterprise.

In February 20 remarks at the Munich Satellite Navigation Summit in Germany, Jing Guifei, a project manager at the National Remote Sensing Center of China (NRSCC), seemed to play down the global aspects of Compass — or Beidou 2 — while underlining near-term efforts to implement a regional capability for the system.

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By Glen Gibbons
GPS civil signal design innovator elected president of U.S. Institute of Navigation
February 29, 2008

GPS civil signal design innovator elected president of U.S. Institute of Navigation

ION President Christopher Hegarty

GPS civil signal design innovator Christopher Hegarty has been elected 2008-9 president of the U.S.-based Institute of Navigation (ION). Hegarty is the director of spectrum management for the MITRE Corporation’s Center for Advanced Aviation System Development, based in McLean, Virginia, USA.

Founded in 1945, ION is a professional society for military and civil engineers, students, and others interested in air, space, marine, land navigation, and position determination. It is affiliated with the International Association of Institutes of Navigation.

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By Inside GNSS
President’s FY09 Budget Proposes $1.2 Billion for GPS Program
February 27, 2008

President’s FY09 Budget Proposes $1.2 Billion for GPS Program

The White House

President Bush’s Fiscal Year 2009 (FY09) budget released earlier this month proposes an allocation of nearly $1.2 billion dollars for GPS operations, according to the Space and Missile Systems Center’s GPS Wing at Los Angeles Air Force Base, California.

If approved, the budget would support continued development of the GPS III satellite program with a first launch in FY14. The somewhat delayed target date appears to match the prediction of the GPS Wing that the first GPS III launch would be set back a few months as a result of Congressional cuts in the FY08 GPS budget.

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By Glen Gibbons
GLONASS CDMA Signals Near Approval
February 22, 2008

GLONASS CDMA Signals Near Approval

Russia appears ready to add code division multiple access (CDMA) signals to its frequency division multiple access (FDMA) GLONASS system.

A final decision is expected next week, according to Sergey Revnivykh, deputy head of the Russian GNSS Mission Control Center, in a February 20 presentation to the Munich Satellite Navigation Conference in Germany. Under the plan, CDMA signals would be introduced at L1 and L5 frequencies near GPS and Galileo signals, beginning with the GLONASS-K generation of satellites that will launch in 2010.

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By Inside GNSS
Ivanov GLONASS Flap Obscures Program Reality
February 9, 2008

Ivanov GLONASS Flap Obscures Program Reality

Russian Deputy Prime Minister Sergey Ivanov’s criticism of Roscosmos and GLONASS continues to ripple in news columns around the world.
Widely reported in Russian media and picked up and amplified in derivative reports, Ivanov’s complaints focused on GLONASS’s relative inaccuracy, limited coverage, and lack of user equipment.

However, aside from the fact that the person making the remarks was Ivanov — a powerful figure once thought to be in line to succeed Russia’s President Vladimir Putin, none of this is really news. Rather, it seems like another example of the phenomenon that, when people learn of something for the first time, they assume it has just happened.

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By Glen Gibbons
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