Latest news with #PNT
Time of India
21-05-2025
- Science
- Time of India
Glitch-hit NVS-02 can provide services only for 2-3 hours per day
BENGALURU: Even as the failure analysis committee (FAC) set up to look into the May 18 PSLV failure prepares for its first formal meeting, details about the defective valve that affected India's NV-02 navigation satellite , launched on Jan 29, have emerged, confirming that the satellite is only partially operational. Tired of too many ads? go ad free now In an official response to queries under right to information, has conceded that NVS-02's current orbital parameters — approximately 190km perigee (closest point to Earth) and 37,000km apogee (farthest point to Earth) — allow for only a few hours of usable Positioning, Navigation and Timing (PNT) service daily. 'At present, with the given orbital parameters of NVS-02, it is estimated to provide PNT service for an average duration of 2 to 3 hours per day. But this calls for user receiver modifications and firmware updates. Technical feasibility of the same is being worked out,' Isro's response reads. Isro's GSLV-F15 that lifted off with the NVS-02 at 6.23am on Jan 29 had placed the satellite which is part of India's NavIC constellation, in a geosynchronous transfer orbit (GTO) around 19 minutes later. Just a few hours later, Isro had detected a glitch in the valve that was to supply oxidiser to the liquid apogee motor (LAM). No exact reason Without oxidiser, Isro was unable to fire LAM, perform orbit corrections and take the satellite to the intended final orbit. The exact reason for the failure could not be ascertained, the response reads, noting that no single point failure was responsible. Test results confirmed that the issue was not related to power disconnection. Despite the reduced service window, Isro maintains that the accuracy of the PNT signal from NVS-02 will be 'usable'. Tired of too many ads? go ad free now The NVS-02, part of India's NavIC constellation, carries one indigenous Rubdium Frequency Standard (RAFS) and three foreign RAFS, which serve as timing sources critical to navigation accuracy. While Isro maintains that the Indian-made RAFS unit is performing comparably to their foreign counterparts, it declined to disclose technical information about the same, citing national scientific interest. PSLV failure Meanwhile, the FAC setup to investigate the cause of failure of the PSLV whose third stage (PS3) failed on May 18, was scheduled to meet for the first time on May 21. Isro chairman V Narayanan told TOI: 'I have conducted the six meetings so far, including four on the day of the launch. We have to enable the FAC to conduct its meeting.' While Isro has officially said that there was a drop in chamber pressure of the third stage (PS3) motor case, it is yet to conclude on what may have caused the pressure to dip. Sources had indicated to TOI, as reported in its May 19 edition, that reasons that may have caused the drop in pressure could be: depletion of internal insulation, which affects the fuel burn, or a defective nozzle. Narayanan, however, said: 'I don't want to preempt anything at this moment and all I can say is that it is connected to the third stage.' He said that the FAC headed by M Annamalai will investigate the matter. Annamalai is a former Isro scientist who has served as director, Satish Dhawan Space Centre (SDSC) and has earlier been part of multiple FACs.
Yahoo
19-05-2025
- Business
- Yahoo
Safran Federal Systems Unveils HyperReveal AI Platform at GEOINT 2025
ARLINGTON, Virginia, May 19, 2025 /PRNewswire/ -- Safran Federal Systems, a leading provider of Assured Position, Navigation, and Timing (PNT) solutions, today announced the launch of its new U.S.-based geospatial artificial intelligence platform, HyperReveal, at the 2025 GEOINT Symposium. HyperReveal marks the expansion of Safran's proven global geospatial analytics capabilities into the U.S. market via its U.S. business, Safran Federal Systems, which is authorized to work on the full spectrum of U.S. Government classified and unclassified projects. The platform delivers mission-driven AI for automated exploitation of high-resolution imagery, full-motion video, electromagnetic, and acoustic signals. HyperReveal uses advanced, sensor-agnostic algorithms to detect and identify objects, activities, and patterns of interest across commercial and government data sources. The platform is purpose-built to provide timely, actionable geospatial intelligence for U.S. defense and national security operations—enabling faster, more informed decision-making in complex and contested environments. The underlying technology has been in development for over 9 years and is already deployed and being used in several active military and government intelligence operations around the world. "Our mission is to transform the speed and precision of decision-making across the commercial, defense, and intelligence communities," said Lee Rizzo, Executive Vice President of Geospatial AI Capabilities. "HyperReveal delivers persistent monitoring, rapid object recognition, change detection, and pattern-of-life analysis—all essential capabilities in today's dynamic operational landscape. From tactical ISR missions to strategic threat assessments, we enable decision dominance by turning massive volumes of data into near real-time, mission- ready intelligence. With HyperReveal AI, we're expanding our ability to support U.S. government agencies with cutting-edge, scalable geospatial solutions." For more information, visit us at GEOINT in Booth #2321 or Safran Federal Systems is a trusted DoD mission partner providing cross-cutting Position, Navigation and Timing (PNT) solutions from the lab to the field. We leverage our industry leadership in Timing, Navigation, Simulation and NAVWAR to offer a unique blend of cost-effective A-PNT solutions bred through innovation. Our expertise in open systems architecture enables rapid delivery of emerging technologies to the warfighter across all domains. Your Assured PNT Mission Partner, from the Lab to the Field. ™ Safran Federal Systems is a proxy-regulated Safran Defense & Space, Inc. company. For more information: View original content to download multimedia: SOURCE Safran Defense & Space, Inc. Error in retrieving data Sign in to access your portfolio Error in retrieving data Error in retrieving data Error in retrieving data Error in retrieving data
Yahoo
23-04-2025
- Business
- Yahoo
FORMER U.S. DOT LEADER JOINS TERN TO ADVANCE ITS AI-POWERED GPS ALTERNATIVE
Diana Furchtgott-Roth Appointed to Advisory Board Amid Rising Global Pressures to Accelerate Satellite-Free Navigation Technology AUSTIN, Texas, April 23, 2025 /PRNewswire/ -- Tern, the developer of the AI-powered navigation IDPS™ (Independently Derived Positioning System), announced today that Diana Furchtgott-Roth, a nationally recognized transportation economist and former Deputy Assistant Secretary at the U.S. Department of Transportation (DOT), has joined its Advisory Board. A long-time advocate for resilient and scalable alternatives to satellite-based positioning, Furchtgott-Roth brings decades of expertise at the intersection of transportation policy, infrastructure, and innovation. Her work at the DOT included leading national efforts to evaluate Positioning, Navigation, and Timing (PNT) technologies in response to increasing threats to GPS from outages, spoofing, and satellite vulnerability. "Diana brings unmatched credibility and clarity on the urgent need for a GPS alternative," said Shaun Moore, Tern CEO and Co-Founder. "Her leadership will be instrumental as we expand IDPS™ across commercial automotive , fleet, defense, and infrastructure sectors." Her appointment comes at a time of escalating geopolitical pressure. U.S.-China relations are under renewed strain, not just economically through rising tariffs, but geopolitically as tensions deepen across the Indo-Pacific. These pressures underscore the vulnerability of U.S. infrastructure that remains critically dependent on satellite-based systems. As trade frictions grow, so does the likelihood of adversarial disruption, making it imperative to accelerate deployment of resilient, non-satellite-based navigation solutions. Furchtgott-Roth underscored this in The Daily Telegraph recently, writing, "Disruptions would pose an immense economic and national security threat, costing trillions of dollars daily, dwarfing any market disruptions from tariffs." She continued, "The global cost of GPS interference is too high for world governments to wait for it to fail. This is an area where like-minded governments can and should work together to develop reliable back-ups, both for economic and military security." Tern's IDPS™ uses vehicle sensors and AI to provide uninterrupted, high-accuracy navigation without GPS, GNSS, or cellular signals. The company recently completed successful testing with the Volpe Research Center, through a US Department of Transportation contract, including the first known "cold start" demonstration, accurately initializing position without any prior knowledge or external signal, a milestone long thought to be out of reach. "Tern's approach flips the model," added Moore. "Rather than patching legacy systems, we're building a new foundation for navigation that's intelligent, resilient, and ready to scale." Learn more and request a test drive of IDPS™. Media Contact: Julie Andersen | jandersen@ ABOUT TERN: Tern's patented, award-winning Independently Derived Positioning System (IDPS™) redefines navigation by using proprietary AI to interpret real-time map and sensor data, enabling precise vehicle positioning without relying on satellites. Seamlessly integrating into OEM platforms, commercial fleets, and defense systems, IDPS™ delivers unmatched reliability and safety, even in GPS-denied environments. Founded by a team of elite navigators and AI pioneers, Tern is setting the new standard for positioning technology. View original content to download multimedia: SOURCE Tern Sign in to access your portfolio
Yahoo
05-03-2025
- Automotive
- Yahoo
US Army approves production of vehicle-mounted GPS alternative
The U.S. Army approved the full-rate production of a Collins Aerospace-developed vehicle-mounted positioning, navigation and timing, or PNT, system vital to operating in GPS-denied environments, the service announced Tuesday. The Mounted Assured, Positioning, Navigation and Timing System, or MAPS, is a key element of the service's modernization push. The Army established a cross-functional team through Army Futures Command in 2017 to advance capabilities, both mounted and dismounted, that would help the Army operate in environments where the enemy might jam its space-based GPS systems used for navigation. As those efforts progressed in development, they were transferred to the Program Executive Office Intelligence, Electronic Warfare and Sensors to be managed as programs of record. 'This monumental achievement is the culmination of over six years of hard work and dedication by [Program Manager] PNT and Mounted PNT,' Lt. Col. Damian Dixon, the Army's Mounted PNT product manager, said in the statement. The MAPS Generation II capability 'provides GPS anti-spoofing and anti-jamming capability through sensor fusion algorithms and non-radio frequency sensors to distribute positioning, navigation, and timing data so mounted soldiers can operate in environments where military GPS is denied or degraded,' the statement notes. In addition to enabling forces to communicate, move and shoot, the system distributes PNT data 'to multiple clients on a single platform, eliminating redundant GPS receivers and antennas,' according to the statement. The MAPS GEN II system consists of an internally mounted navigation hub where data coming from sensors and receivers are fused together and an anti-jam antenna system mounted to the outside of the vehicle. To date, the Army has spent roughly $500 million in procurement funding for the mounted PNT program as it previously fielded a first-generation capability to rapidly deliver an initial capability to the battlefield, according to fiscal 2025 service budget documents. The Army plans to procure 619 MAPS GEN II systems for a total of $130 million in fiscal 2025, according to budget documents. This includes spares, follow-on test and evaluation, logistics support and engineering changes for Armored, Stryker and Infantry Brigade Combat Teams, the documents show.
