GNSS

RITA Seeks Experienced Electronics Engineer

December 17, 2012By

The Research and Innovative Technology Administration (RITA) seeks an experienced Electronics Engineer interested in joining the Office of Positioning, Navigation, and Timing (PNT).  RITA coordinates the U.S. Department of Transportation’s (DOT) research programs and is charged with advancing rigorous analysis and the deployment of cross-cutting technologies to improve our Nation’s transportation system.  RITA serves as the lead Administration representing DOT... read more

Luch-5B Arrives at Orbital Slot

December 15, 2012By
Luch-5B_new2

The second Russian SBAS satellite, Luch-5B, has now been positioned at its designated orbital slot of 16 degrees west longitude. The satellite had been in a drift orbit since its launch on November 2 at 21:04:00 UTC along with the domestic communications satellite Yamal-300K. Tracking data from NORAD/JSpOC showed Luch-5B arriving at its geostationary position by about December 13. The... read more

This article is tagged with and posted in Augmentation & Assistance, GNSS, GNSS News, Latest News

Transmissions from Galileo Satellite IOV-4 Begin

December 13, 2012By

News courtesy of CANSPACE listserv. The Technische Universitaet Muenchen has reported that transmissions of the L1/E1 signal from Galileo satellite IOV-4 (FM-4) started at about 17:15:10 GPS Time December 12. The navigation signals of both of the recently launched in-orbit validation satellites have now been activated. A number of stations in the Cooperative Network for GNSS Observation as well as... read more

Launch of GPS Satellite Struggled through Tense Moments

December 10, 2012By
United Launch Alliance Delta IV rocket blasts off from Space Launch Complex-37 with the U.S. Air Force’s Global Positioning System (GPS) IIF-3 satellite. This launch marks the 9th ULA launch this year, the 54th Evolved Expendable Launch Vehicle (EELV) mission, and the 65th launch since ULA was formed nearly six years ago.

A new report by Spaceflight Now reveals that the launch October 4 of a GPS satellite experienced tense touch-and-go moments. The Delta 4 rocket’s cryogenic upper stage engine experienced a fuel leak that caused a low-thrust condition. Four-and-a-half minutes into the launch, after the first stage had shut down and separated, the trouble began as the RL10B-2 engine on the... read more

This article is tagged with , , and posted in GPS Modernization, Latest News

Russia Delays Launch of GLONASS-K Satellite

December 3, 2012By

According to RIA Novosti, the launch of Russia’s second GLONASS-K satellite has been delayed until 2013 from its end-of-year launch date, Defense Ministry spokesman Col. Alexey Zolotukhin said on Monday. “The launch has been postponed due to technical flaws in the Fregat booster made by the Lavochkin space company,” Zolotukhin said. The new date for the launch will be set... read more

This article is tagged with , and posted in GLONASS, GNSS News

Transmissions from Galileo Satellite IOV-3 Have Begun

December 3, 2012By
Javier Benedicto, ESA's Galileo Project Manager, looks on as Europe's own satellite navigation system performs its historic first position fix of longitude, latitude and altitude. The position fix took place at the Navigation Laboratory at ESA’s technical heart ESTEC, in Noordwijk, the Netherlands on the morning of 12 March, with an accuracy between 10 and 15 metres – expected taking into account the limited infrastructure deployed so far. Horizontal accuracy reached as high as 6 m. The left-side screen shows the position fix while the right side screen shows the position of the four Galileo satellites and their current signal coverage.

According to a report from the Technische Universitaet Muenchen, transmissions of the L1/E1 signal from the recently launched Galileo satellite IOV-3 (FM-3) started at about 13:55:20 GPS Time December 1. Transmissions from IOV-3 of the E5 signal began December 2. By December 4, all three Galileo bands, including E6, were being broadcast, according to the European Space Agency (ESA). Several... read more

Directions 2013: The Future of GNSS Security

December 1, 2012By

The GNSS interference session this year at the ION-GNSS conference in Nashville was one of the most crowded, confirming the need of all sectors of the community to understand the threats in GNSS and how they can be mitigated. In that context I received one of the most challenging questions of my career: “Can we predict the future of GNSS security?” What is the status of civil and commercial GNSS security today? Which are the threats and risks and how they are mitigated? Where are we going and what shall we expect from the future? read more

Directions 2013: Doing More with Less to Advance GNSS

December 1, 2012By

The history of GNSS shows each year has always been more successful than the year prior, and in 2013 we expect the trend to continue. In the United States, the role of GPS will continue to expand, and the applications for our technology will reach sectors we never imagined. As our international partner countries continue to launch GNSS satellites, and user equipment develops further, our community will increase its globalization, and international cooperation will reach new heights. read more