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Air Force Sets Latest GPS Satellite Operational
August 27, 2009

Air Force Sets Latest GPS Satellite Operational

GPS IIR-21(M) logo (United Launch Alliance)

The last in the series of eight modernized GPS Block IIR satellites, GPS IIR-21(M), has been declared operational for military and civilian users worldwide, just 10 days after launching from Cape Canaveral Air Force Station.

Launched August 17, the spacecraft (identified by its space vehicle number, SVN50, and pseudorandom noise code, PRN05) joins the constellation of 30 operational satellites on orbit.   

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By Inside GNSS
NOAA, Japan Establish QZSS Ground Station in Guam

NOAA, Japan Establish QZSS Ground Station in Guam

Officials from the National Oceanic and Atmospheric Administration and the Japan Aerospace Exploration Agency (JAXA) have unveiled a new ground station in Guam that will track spacecraft from JAXA’s upcoming Quasi-Zenith Satellite System (QZSS).

Designed to work seamlessly with the U.S. Global Positioning System, QZSS is a space-based augmentation system (SBAS) being developed by JAXA to improve navigation satellite coverage over Japan and surrounding areas. The first QZSS satellite is expected to launch in 2010.

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By Inside GNSS
Wanted: Director of U.S. PNT National Coordination Office
August 25, 2009

Wanted: Director of U.S. PNT National Coordination Office

The National Coordination Office for Space-Based Positioning, Navigation, and Timing (PNT) is looking for a new director.

This office supports the National Space-Based PNT Executive Committee (ExCom) and Executive Steering Group, established by the 2004 National Security Policy Directive for Space-Based Positioning, Navigation, and Timing. Mike Shaw, the NCO’s first and only director to date, left earlier this year for a position as director of navigation systems global business development at Lockheed Martin Space Systems in Arlington, Virginia.

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By Inside GNSS
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Russia Building Out GLONASS Monitoring Network, Augmentation System
August 19, 2009

Russia Building Out GLONASS Monitoring Network, Augmentation System

GLONASS-K spacecraft (artist’s illustration)

With a nearly restored and modernizing GLONASS system beginning to make inroads into mass market products and services, Russia has revealed plans to build out a space-based augmentation system (SBAS) and establish its first ground monitoring stations outside the Russian territory. 

In a July 30 presentation at an International Committee on GNSS (ICG) working group on interoperability, Dmitry Marareskul, head of the onboard satellite navigation sector of Information Satellite System Reshetnev Corporation in Zheleznogorsk, revealed Russia’s plans to expand its network of GLONASS monitoring and measuring stations to include sites in Australia, Cuba, and South America.

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By Inside GNSS
Air Force Launches Last GPS Block IIR-M Satellite
August 17, 2009

Air Force Launches Last GPS Block IIR-M Satellite

GPS IIR-21(M)

The U.S. Air Force successfully launched the last in the series of eight modernized GPS (IIR-M) satellites today (August 17) at 6:35 a.m. (EDT).

Using the Space Launch Complex 17A at Cape Canaveral Air Force Station, Florida, the satellite was carried into space aboard the last of the Air Force’s United Launch Alliance Delta II rockets.

GPS IIR-21(M) will join the constellation of 30 operational satellites on-orbit, assuming a position in plane E, slot 3 and replacing space vehicle number 40 (SVN40). The Air Force expects to set the satellite healthy for navigation users worldwide next month.

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By Inside GNSS
Spirent Launches New Signal Generator
August 11, 2009

Spirent Launches New Signal Generator

Spirent Communications plc has launched the GSS6300 Multi-GNSS Signal Generator, intended for high-volume production test applications for devices that use commercial GPS/SBAS, GLONASS, and/or Galileo receivers.

The GSSS6300 provides a comprehensive remote control interface, designed to facilitate integration into automated test equipment (ATE) environments.

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By Inside GNSS
China Reveals Updated Compass/ Beidou-2 GNSS Signal Plan

China Reveals Updated Compass/ Beidou-2 GNSS Signal Plan

Figure 2. GNSS spectrum (after China ICG presentation)

A new Compass signal and frequency plan introduced at a recent International Committee on GNSS (ICG) working group meeting fills in some of the gaps on China’s current thinking about its GNSS system.

The presentation on the new Compass (Beidou-2) plan came at a July
30–31 workshop of the ICG Working Group A – Compatibility and
Interoperability (WG-A), in Vienna.

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By Inside GNSS
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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.

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By Inside GNSS
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.

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By Inside GNSS
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