Both New Galileo Satellites Now Transmitting

May 21, 2015By

News courtesy of CANSPACE Listserv   Signals from both Galileo satellites launched March 27 are now transmitting signals. Researchers at Université de Liège and at the German Aerospace Center (Deutsches Zentrum für Luft- und Raumfahrt, or DLR) reported on May 21 that the first of the full-operational-capability (FOC) satellites had begun transmitting standard L-band signals. The satellite, designated Galileo 8, is using... read more

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June 30 Leap Second Worries Markets, Internet

May 19, 2015By
London time - canon t2i

The coming leap second on June 30 sounds as scary as the (turns out not-so-scary) Y2K bug. But the world has experienced leap second issues before, and most affected industries are taking steps to prepare. The world’s clocks will be adjusted by one second on June 30, when a leap second will be inserted into Coordinated Universal Time (UTC), the standard international time scale. In... read more

Satnav Augmentation Systems Settle on Common Channels Post-2020

May 7, 2015By
The ESTEC facility in Noordjvik, The Netherlands.

The 28th Satellite-based Augmentation Systems Interoperability Working Group endorsed the "message definition" for a new secondary SBAS channel — to be known as L5, along with the current L1 — for the planned second-generation SBAS systems, which will utilize dual-frequency multi-constellation signals. read more

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New Version of gfzrnx RINEX 2/3 Tool Ready for Testing

May 5, 2015By

The next version (0.93) of the “gfzrnx” RINEX-2/3 Tool is now available. Because of user feedback, the developers have fixed bugs and have added these new features: strict epoch interval handling via -sei command line parameter support of the upcoming RINEX version 3.03 (BDS B1 obs. types, IRNSS support) The software is still in a beta state, according to the GFZ IGS... read more

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First GPS III Satellite Ready for Harsh Environment Testing

May 4, 2015By

Using a 10-ton crane, Lockheed Martin engineers and technicians gently lowered the system module of the U.S. Air Force’s first next generation GPS III satellite into place over its propulsion core, successfully integrating the two into one space vehicle. The April systems integration event brought together several major fully functional satellite components. The system module includes the navigation payload, which... read more

The System: All Systems Go, with a Spring into Space

May 1, 2015By

Planet Earth gained five new navigation satellites in late March, for four satellite systems. GPS. The U.S. Air Force’s ninth GPS Block IIF satellite (GPS IIF-9) launched on March 25 from Cape Canaveral, Fla. The IIF-9 rode aboard a Delta IV rocket, the workhorse of the GPS fleet for successful launches. The satellite was declared operational on April 21. “Many... read more

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Out in Front: Good News for Modern Nav

May 1, 2015By

This year’s European Navigation Conference in Bordeaux, France, got underway with “Good news from up there .…” Galileo’s seventh and eighth satellites launched successfully in late March, the European Space Agency (ESA) plans four more satellites to reach orbit in 2015, and space maneuvers for Galileo 5 and 6 have been completed, with a recovery plan currently under study. ESA... read more

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Expert Advice: A Leap Second — One More Time!

April 30, 2015By
From left: Dennis McCarthy, Wayne Hanson, Ronald Beard and William Klepczynski

Once again we are going to adjust the world’s clocks by one second. This time it will happen on June 30, when we insert another leap second in Coordinated Universal Time (UTC), the standard international time scale. In theory, all UTC clocks should insert a second labeled 23h 59m 60s (the leap second) following one labeled 23h 59m 59s UTC. This is equivalent to having all of the clocks in the world stop for one second at that time. Are you ready for it? read more

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