A: System Categories Archives - Page 178 of 199 - Inside GNSS - Global Navigation Satellite Systems Engineering, Policy, and Design

A: System Categories

Upcoming Block IIR-(21)M Launch Wraps Up Generation of GPS Satellites
August 6, 2009

Upcoming Block IIR-(21)M Launch Wraps Up Generation of GPS Satellites

The scheduled August 17 launch of GPS satellite IIR-(21)M — also known by its space vehicle number SVN50 — will mark the end of a couple of eras: the final launch of the Lockheed Martin–built replenishment generation (Block IIR) of GPS satellites and the last Air Force launch using the Delta II rocket.

Notably, SVN50 will not have a payload connected to the J2 reserve auxiliary payload port that proved problematical with the L5 demonstration payload on the previous GPS satellite, SVN49, and possibly on other Block IIR/IIRMs.

Read More >

By Inside GNSS
[uam_ad id="183541"]
2009 FAA New Technologies Workshop
July 30, 2009

2009 FAA New Technologies Workshop

"Future Flight Technologies – the Wings of NextGen" is the theme of the Federal Aviation Administration’s 2009 New Technologies Workshop.

Registration and exhibit space are FREE.

The conference will focus on innovations for the transition to the Next Generation Air Transportation System as well as updates on existing programs, technology and new systems now in development.

Read More >

By Inside GNSS
U.S. Congress Working on 2010 Appropriations for Loran-C and eLoran as GPS Backup
July 29, 2009

U.S. Congress Working on 2010 Appropriations for Loran-C and eLoran as GPS Backup

Enhanced Loran (eLoran) has survived through multiple generations of official ambivalence about the proposed backup for the U.S. Global Positioning System. Currently, the program is in (almost) on-again status.

The latest chapter began with President Obama’s Fiscal Year 2010 (FY10) budget proposal, which called for termination of Loran in the coming year. At a May 7 press conference, the president described Loran as a system that’s been eclipsed by the rise of GPS.

Read More >

By Inside GNSS
U.S. House of Representatives Trims $97 Million from OCX Budget, Cites Contract Delays
July 23, 2009

U.S. House of Representatives Trims $97 Million from OCX Budget, Cites Contract Delays

(Updated 11 a.m. (PDT), includes additional details from the GPS Wing)

A $97.4-million reduction in the GPS program made by the U.S. House of Representatives would affect the modernization program for the operational control segment (OCX), not the GPS III satellite budget as reported earlier.

In adopting the action of its appropriations committee, the full House approved H.R. 3326, the Department of Defense (DoD) Fiscal Year 2010 (FY10) budget, on July 30. The bill was referred to the Senate Appropriations Committee on August 3. In its report on the bill, the House committee said it made the cuts because of contract delays in the OCX program.

Read More >

By Inside GNSS
[uam_ad id="183541"]
ISRO Extends Raytheon Contract for GAGAN GPS Augmentation System
July 21, 2009

ISRO Extends Raytheon Contract for GAGAN GPS Augmentation System

The Indian Space Research Organization (ISRO) has awarded a new $82 million contract to Raytheon Company to modernize the Indian air navigation system.

Raytheon will build the ground stations for the GPS-Aided Geosynchronous Augmented Navigation System (GAGAN), and the Indian Space Research Organization will provide the space segment and additional ground equipment. GAGAN will provide satellite-based navigation for civil aviation over Indian airspace and adjoining areas in south and east Asia.

Read More >

By Inside GNSS
GPS Signal Anomalies: Is SVN49 Just the Tip of the Iceberg?
July 18, 2009

GPS Signal Anomalies: Is SVN49 Just the Tip of the Iceberg?

Block IIR Satellite L-Band Transmitter Array of 12 Helical Antennas. Lockheed Martin photo.

After GPS Wing engineers and contractors figure out how to solve the elevation-dependent signal anomalies on the latest GPS satellite — Space Vehicle Number 49 (SVN49), they may want to take a look at another nine Block IIR and IIR-M spacecraft that European scientists say exhibit similar, but less severe, behavior.

In an article that will appear in the July/August issue of Inside GNSS, Tim Springer and Florian Dilssner, GNSS engineers in the Navigation Support Office of the European Space Operations Center (ESOC), described the effects of the anomaly as well as the U.S. Air Force’s initial attempts to solve the problem by altering the broadcast satellite orbital positions and time. A version of the article was posted June 25 on the magazine’s website.

Read More >

By Inside GNSS
U.S. Access to Europe’s Galileo Program Markets Subject of Trade Rep Report
July 17, 2009

U.S. Access to Europe’s Galileo Program Markets Subject of Trade Rep Report

Comments submitted to the Office of the U.S. Trade Representative (USTR) suggest that the Galileo program is finally nearing a decision on commercial use of specifications for its Open Service (OS), but U.S. officials remain concerned that this nation’s equipment manufacturers not be placed at a competitive disadvantage. Meanwhile, Galileo simulators appear to finally be reaching receiver manufacturers, despite the absence of official approval.

Read More >

By Inside GNSS
1 … 176 177 178 179 180 … 199
IGM_e-news_subscribe