IMCA publishes guidelines on the use of GNSS for tide calculations
The International Marine Contractors Association’s (IMCA) newly published ‘Guidelines on the use of GNSS for tide calculations’ (IMCA S 027) provides an overview of how Global Navigation Satellite Systems (GNSS) can assist in more accurate real-time direct measurement of tidal changes.
As Nick Hough, …

EGNOS and Galileo on the ambitious Digital Rail agenda
The European Year of Rail brings attention to a number of topics important for improving the role of rail within the EU transport ecosystem. The recently published Policy paper “Challenges for European rail – getting solutions on track” by Jacques Delors Institute, highlights the main challenges …

NASA advancing GNSS capabilities
NASA is developing capabilities that will allow missions at high altitudes to take advantage of signals from Global Navigation Satellite System (GNSS) constellations — like GPS commonly used in the U.S. These signals — used on Earth for navigation and critical timing applications — could provide NASA’s Artemis missions to the Moon …

NASA explores upper limits of Global Navigation Systems for Artemis
The Artemis generation of lunar explorers will establish a sustained human presence on the Moon, prospecting for resources, making revolutionary discoveries, and proving technologies key to future deep space exploration.
To support these ambitions, NASA navigation engineers from the Space Communications and Navigation (SCaN) program are developing …

Galileo nominal service restored
The Galileo Service was affected from Dec 14, 00:00 UTC by an anomaly in the time determination function of the ground segment of the system.
This resulted in signals flagged as MARGINAL (SISA=NAPA) for all satellites. During this period, pseudorange errors in excess of nominal performance were experienced by user receivers. …

GSA releases the 3rd GNSS user technology report
The European GNSS Agency (GSA) has just released its latest GNSS User Technology Report, providing a comprehensive analysis of latest GNSS trends and developments. With contributions from leading GNSS receiver and chipset manufacturers, the report serves as a valuable tool to support planning and decision-making with regards …

UK Government to explore new ways of delivering ‘Sat Nav’
New options for a UK satellite navigation and timing capability programme to support the nation’s critical infrastructure will be explored by the government.
The Space-Based Positioning Navigation and Timing Programme (SBPP) will explore new and alternative ways that could be used to deliver vital satellite navigation services …

GPS III successfully introduced into EGNOS services
Introduction of the first GPS III satellites into EGNOS services was successfully achieved on 27 July 2020, following the initiation by GPS of a transition from its “GPS Block II” satellites to its new generation “GPS Block III” satellites.
The GPS operational constellation started in 2020 to migrate …

SpaceX launches third GPS Block III satellite
SpaceX launched their Falcon 9 rocket with the third Block III GPS satellite, named SV03. Block III is the next generation of GPS satellites, replacing the aging Block II series. This will be SpaceX’s second GPS launch, out of the five they have been awarded so far.
SpaceX previously launched …

NIST seeks public input on use of PNT services
To bolster the resilience of the Global Positioning System (GPS) and the wide scope of technologies and services that rely on precision timing, the U.S. Department of Commerce’s National Institute of Standards and Technology (NIST) is requesting information from the public about the broad use of positioning, …