What's New
News Items
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GPS III Space Vehicle 02 "Magellan" Arrives in Florida; Prepares for July Launch
(Mar 20) The U.S. Air Force's Space and Missile Systems Center's Global Positioning Systems Directorate achieved another major program milestone March 19, successfully delivering the second GPS III Space Vehicle to Astrotech Space Operations in Titusville, Florida to begin satellite launch processing.
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GPS Week Number to Rollover
(Mar 5) Users should be aware of the upcoming GPS Week Number rollover as it may impact receivers that are not manufactured in compliance with IS-GPS-200 specifications.
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GPS Testing Notice Concerning the GPS Week Number Rollover
(Jan 25) The Air Force plans to execute a test in February 2019 to investigate legacy receiver week roll-over behavior and analyze any off-nominal behavior exhibited.
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First GPS III Satellite Successfully Launched
(Dec 23) The U.S. Air Force and its mission partners successfully launched the first Global Positioning Systems (GPS) III satellite at 8:51 a.m. EST, Dec. 23 from Space Launch Complex-40 at Cape Canaveral Air Force Station, Florida.
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GPS III Space Vehicle 01 Is Encapsulated in the Falcon 9 Payload Fairing
(Dec 13) The Air Force’s first Lockheed Martin-built GPS III satellite was encapsulated within a SpaceX payload fairing at Astrotech on Dec. 7 in preparation for its upcoming launch later this month at Cape Canaveral Air Force Station, Florida.
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PNT Advisory Board Meeting Agenda
(Nov 29) The agenda for the Dec 5-6 public meeting of the National Space-Based Positioning, Navigation, and Timing (PNT) Advisory Board in Redondo Beach, CA, is now online.
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2nd SOPS Reaches GPS Milestone with AEP 7.5 Command
(Nov 21) The 2nd Space Operations Squadron took formal command of Architecture Evolution Plan 7.5, the largest GPS architectural change in operational history, after its successful installation at Schriever Air Force Base, Colorado, Nov 16, 2018.
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Legislative Updates
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President’s FY 2020 Budget Request for GPS Program
(Mar 22) On March 18, 2019, the White House released the President's Fiscal Year 2020 budget proposal. The budget request includes $1.76 billion in Air Force procurement and development to sustain and modernize the GPS program, as well as $105 million in funds for the Department of Transportation to support designated civil elements of the GPS program.
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President Signs Legislation on Backup National Timing System
(Dec 4) On Tuesday, December 4, 2018, the President signed S.140, the Frank LoBiondo Coast Guard Authorization Act into law. Section 514 is the National Timing Resilience and Security Act of 2018, which states, "the Secretary of Transportation shall provide for the establishment, sustainment, and operation of a land-based, resilient, and reliable alternative timing system."
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U.S. Air Force Prepares for December GPS III Launch, Announces Selection of GPS III Follow-On
(Oct 29) The U.S. Air Force recently delivered the first of ten GPS III satellites to Cape Canaveral to begin launch processing for a December 15, 2018, launch. Developed with a new design, GPS III will have greater accuracy and improved anti-jamming capabilities compared to the current fleet of GPS IIR, IIR-M, and IIF satellites. GPS III will also be the first series of GPS satellites to broadcast the new "L1C" civil signal. Also offered by other satellite systems, like Europe's Galileo and Japan's QZSS, the L1C signal will improve global interoperability and service availability for commercial and civilian users. On September 14, the Air Force announced the selection of Lockheed Martin to build 22 GPS III Follow-On satellites that will provide even greater capabilities than the new GPS III series.
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Final GPS Funding Levels in FY 2019 Appropriations
(Sep 28) On September 28, 2018, President Trump signed H.R. 6157, the Department of Defense and Labor, Health and Human Services, and Education Appropriations Act, 2019 and Continuing Appropriations Act, 2019 into law. The omnibus package included funding for Fiscal Year 2019 for the Department of Defense, and appropriates funding for the GPS Program at $1.424 billion, a decrease of $55 million compared to the President's initial request. The funding measure also includes a continuing resolution that will fund the remainder of the government through December 7, 2018.
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President Signs NDAA Including Guidance for GPS Program
(Aug 17) On Monday, August 13, President Trump signed the Fiscal Year 2019 National Defense Authorization Act (NDAA) into law. The NDAA includes policy and funding guidance for the GPS program, but does not expend funds from the U.S. Treasury. The NDAA recommends funding the GPS program at $1.46B, an $18M reduction for the GPS program compared to the initial request. The NDAA also includes several GPS-related provisions.
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House Appropriators Decrease Funding for GPS III Development
(Jun 13) The House Appropriations Committee approved the subcommittee draft of the Fiscal Year 2019 defense appropriations bill. The committee bill would decrease funding for GPS III Development by $18 million compared to the President's request.
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Official U.S. government information about the
Global Positioning System (GPS) and related topics
