Space Systems Command, together with United Launch Alliance and other mission partners, successfully placed the fifth and sixth Northrop Grumman-built Geosynchronous Space Situational Awareness Program (GSSAP)-5/-6 satellites into orbit for the U.S. Space Force, after an on-time launch aboard an Atlas V rocket from Space Launch Complex (SLC)-41 at Cape Canaveral Space Force Station, Florida, at 2 p.m. EST (11... read more
Case New Holland (CNH) has selected the Tallysman Wireless VeraChoke antenna for modernization of its high-precision European GNSS real-time kinematic (RTK) network. “The objective of the GNSS antenna update is to enable the tracking of all GNSS constellations and signals, thus improving the robustness, convergence time, and accuracy of positioning within CNH’s European RTK network,” said Michiel Jochims, CNH Industrial... read more
The U.S. Space Force has announced the decommissioning of GPS satellite SVN-47 (PRN-22), which officially took place Jan. 18. The satellite has been unusable since Dec. 2. SVN-47 was a replacement satellite in the second generation of GPS satellites (GPS-IIR), launched Dec. 21, 2003. The announcement was made in a Notice Advisory to NavStar Users (NANU 2022001) issued by NAVCEN,... read more
A roundup of recent products in the GNSS and inertial positioning industry from the January 2022 issue of GPS World magazine. read more
In the interest of further exploring the use of eLoran, I pose some questions, hoping that its advocates will provide answers. read more
The RINEX Working Group of the International GNSS Service (IGS) has made RINEX 4.00 available on the IGS website. RINEX 4.00 (2021) is a major revision of the format document to modernize the navigation message files to be able to accommodate the new navigation messages from all the GNSS constellations, as well as system data messages such as ionospheric corrections,... read more
The U.S. Space Force has released a graph illustrating the GPS Enterprise Roadmap. The roadmap provides timelines for all the different elements of the GPS enterprise through the end of fiscal year 2028. The agency has also released proposed change notices for several GPS-related public documents. The link includes proposed changes for IS-GPS-200, IS-GPS-705 and IS-GPS-800 related to RFC-467 (2021... read more
John Deere has revealed a fully autonomous tractor ready for large-scale production. The machine combines Deere’s existing 8R tractor, a TruSet-enabled chisel plow, a GPS-based guidance system, and new advanced technologies. The autonomous tractor has six pairs of stereo cameras, which enable 360-degree obstacle detection and the calculation of distance. Images captured by the cameras are passed through a deep... read more
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