GPS Modernization

New GPS IIF Satellite Launched

February 21, 2014By
A United Launch Alliance Delta IV lifts off from Space Launch Complex-37 with the Air Force's Global Positioning System (GPS) IIF-5 satellite. This launch marked the 25th Delta IV flight since the first flight in 2002.

News compiled with the assistance of CANSPACE listserv. After a brief delay due to concerns over solar radiation trends, the GPS IIF-5 satellite was successfully launched at the end of the designated launch window at 01:59 UTC on February 21. The satellite, attached to the launch rocket’s upper stage, was initially placed in a highly elliptical orbit. Following a third... read more

GNSS Vulnerable: What to Do?

February 18, 2014By

Too Much Sensitivity, Not Enough Robustness, Says Parkinson Brad Parkinson, the founding architect of GPS, told a UK conference that the system needs to be made more robust to ensure worldwide availability of services to users. His concerns over GPS availability relate to threats such as the loss of authorized frequency spectrum (implicitly creating licensed jammers), space weather due to... read more

GPS Satellite Launch Set for Thursday

February 18, 2014By
GPS IIF

The United Launch Alliance Delta 4 rocket family will launch a new GPS IIF satellite from Cape Canaveral Thursday night. Liftoff is scheduled for Thursday at 8:40 p.m. EST, at the start of a 19-minute launch opportunity, according to the United Launch Alliance. The window is timed to deliver the GPS IIF-5 satellite directly into Plane A of the navigation network... read more

GPS III Payload Facing Delays

February 11, 2014By

Gen. William Shelton, chief of Air Force Space Command, said the date when prime contractor Lockheed Martin and payload manufacturer Exelis are expected to have the first GPS satellite ready for launch will slip from its original target at the end of this fiscal year, according to National Defense Magazine. Technical difficulties are slowing the development process, he said. “We’re... read more

The System: Competition for the Gold Standard

February 1, 2014By
The main antenna of the second Galileo Full Operational Capability (FOC) satellite being inspected with a flashlight in advance of mass property testing at the European Space Agency’s  ESTEC Test Centre in the Netherlands. Thermal-vacuum testing on the second model began in early 2014. The two FOC satellites will be launched on a Soyuz rocket from Europe’s French Guiana Spaceport in mid-2014. Whether four more can rise and begin providing initial Galileo services by the end of the year is the question of the hour.

BeiDou Releases Public Service Performance Document In late December, director Ran Chengqi of China’s Satellite Navigation System Management Office announced the BeiDou Navigation Satellite System (BDS) Public Service Performance Standard. The document details the public service performance parameters of the BeiDou system, including service area, accuracy, integrity, continuity, and availability. It is a basic commitment to customers from BDS providers,... read more

This article is tagged with and posted in Augmentation & Assistance, BeiDou/Compass, Galileo, GPS Modernization, The System

Exelis Reaches GPS OCX Milestones for Navigation and Encryption Software

January 31, 2014By

Exelis has successfully completed several software upgrades for the new Global Positioning System Next Generation Operational Control System, or GPS OCX.  Integration and testing were recently conducted on iteration 1.5 of the OCX navigation, encryption and Mission Upload Generator, or MUG, software. The new version of GPS software will help ground controllers better understand the satellites’ exact positioning in space.... read more

This article is tagged with and posted in Defense News, GNSS News, GPS Modernization, Latest News, Precision Guidance

Lockheed Martin Powers on Second GPS III Satellite in Production

January 29, 2014By
GPS-III-AHI-O

The Lockheed Martin team developing the U.S. Air Force’s next generation Global Positioning System (GPS) recently turned on power to the bus and network communications equipment payload of the program’s second satellite designated GPS III Space Vehicle 2 (SV-02). The successful powering on of GPS III SV-02, on December 19, 2013, at Lockheed Martin’s Denver-area GPS III Processing Facility (GPF),... read more

This article is tagged with , and posted in Featured Stories, GNSS News, GPS Modernization

DoT Disses DoD’s GPS Chops

January 9, 2014By

The departing Deputy Secretary of Transportation, John Porcari, wrote a letter in the closing days of 2013 opposing the U.S. Air Force’s announced plans to begin broadcasting Civil Navigation (CNAV) message-populated L2C and L5 signals as early as April 2014. Military personnel are incensed over what they see as Porcari’s impugning, when not ignoring, the Air Force 35-year track record... read more