GPS Block III (English Wikipedia)
Analysis of information sources in references of the Wikipedia article "GPS Block III" in English language version.
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aerospace.org (Global: low place; English: low place)
- Lazar, Steven (Summer 2002). "Modernization and the Move to GPS III" (PDF). Crosslink. 3 (2): 42–46. Archived from the original (PDF) on 4 April 2014. Retrieved 29 June 2012.
airandspaceforces.com (Global: 8,923rd place; English: 6,049th place)
- "Space Force Accepts New GPS Control System After Years of Delays". Air & Space Forces Magazine. 16 July 2025. Retrieved 17 July 2025.
airforcemag.com (Global: 3,541st place; English: 2,225th place)
- Brissett, Wilson (7 November 2017). "SMC Releases Draft RFP for Five EELV Launches". Air Force Association. Air Force Magazine. Retrieved 13 December 2017.
amerisurv.com (Global: low place; English: low place)
- "CGSIC Bulletin: GPS Constellation Change: SVN-63". The American Surveyor. 10 August 2023. Retrieved 16 October 2024.
archive.today (Global: 14th place; English: 14th place)
- "Lockheed Orders GPS 3A Satellite Buses from ATK". Archived from the original on 2 February 2013.
- "Northrop Grumman Corporation: News and Events – News Release". Archived from the original on 4 April 2014.
arstechnica.com (Global: 388th place; English: 265th place)
- "The last single-stick Delta rocket launched Thursday, and it put on a show". 22 August 2019.
- Clark, Stephen (8 April 2025). "A military satellite waiting to launch with ULA will now fly with SpaceX". Ars Technica. Retrieved 8 April 2025.
- https://arstechnica.com/space/2025/11/ula-aimed-to-launch-up-to-10-vulcan-rockets-this-year-it-will-fly-just-once/
bloomberg.com (Global: 99th place; English: 77th place)
- "SpaceX Caps Record 2018 With Launch of Air Force GPS Satellite". Bloomberg. 23 December 2018. Retrieved 23 December 2018.
defense.gov (Global: 1,038th place; English: 668th place)
defense.gov
- "Contracts for April 27, 2016". U.S. Department of Defense. Archived from the original on 14 August 2018.
This article incorporates text from this source, which is in the public domain.
archive.defense.gov
- "DOD Announces Start of Civil Navigation Message Broadcasting". U.S. Department of Defense. 25 April 2014. Archived from the original on 29 December 2016. Retrieved 28 December 2016. This article incorporates text from this source, which is in the public domain.
defenseindustrydaily.com (Global: 3,289th place; English: 2,353rd place)
- "Future GPS: The USA's GPS-III Programs". Defense Industry Daily. 14 May 2014. Retrieved 17 May 2014.
defensenews.com (Global: 1,259th place; English: 839th place)
- Insinna, Valerie (17 October 2016). "Raytheon's OCX Offering Survives Nunn-McCurdy Breach". DefenseNews. Retrieved 25 December 2016.
- Seligman, Lara (3 March 2016). "Weapons Tester Warns of Risk to Air Force's GPS Contingency Plan". Defense News. Retrieved 25 December 2016.
gao.gov (Global: 2,954th place; English: 1,848th place)
- "Global Positioning System: Better Planning and Coordination Needed to Improve Prospects for Fielding Modernized Capability" (PDF). US Government Accountability Office (GAO). December 2017. Retrieved 18 December 2017. This article incorporates text from this source, which is in the public domain.
- "Assessments of Selected Weapon Programs" (PDF). US General Accounting Office. March 2017. Retrieved 20 June 2017. This article incorporates text from this source, which is in the public domain.
- "GPS MODERNIZATION: Space Force Should Reassess Requirements for Satellites and Handheld Devices" (PDF). 5 June 2023.
Space Force is projected to launch the 27th M-code capable GPS satellite in February 2025.
- "Defense Acquisitions: Assessments of Selected Weapon Programs". Report Number GAO-13-294SP. U.S. Government Accountability Office. 28 March 2013. This article incorporates text from this source, which is in the public domain.
- "GPS MODERNIZATION Delays Continue in Delivering More Secure Capability for the Warfighter" (PDF). US Government Accountability Office. 9 September 2024. Retrieved 17 July 2025.
gps.gov (Global: low place; English: low place)
- Gleckel, Gerry (15 November 2017). "GPS Status and Modernization Program" (PDF). gps.gov. U.S. Air Force. Retrieved 1 December 2017. This article incorporates text from this source, which is in the public domain.
- "Military Communications & Positioning, Navigation, and Timing Overview & GPS Enterprise Update" (PDF). U.S. Space Force Space Systems Command. 16 November 2022. Retrieved 21 January 2023.
- "GPS Status and Modernization" (PDF). U.S. Space Force Space Systems Command. 12 September 2023. Retrieved 5 October 2023.
- "New Civil Signals: Second Civil Signal". National Coordination Office for Space-Based Positioning, Navigation, and Timing. 23 September 2016. Retrieved 20 April 2017. This article incorporates text from this source, which is in the public domain.
- "Control Segment: Next Generation Operational Control System". National Coordination Office for Space-Based Positioning, Navigation, and Timing. 26 September 2013. Retrieved 21 November 2013. This article incorporates text from this source, which is in the public domain.
- "New Civil Signals | GPS.gov". www.gps.gov. Retrieved 7 December 2025.
- "Interface Specification IS-GPS-200, Revision E" (PDF). Coast Guard Navigation Center. 8 June 2010. This article incorporates text from this source, which is in the public domain.
- "Civil Signals – Third Civil Signal: L5". GPS.gov. 23 September 2016. Retrieved 20 April 2017. This article incorporates text from this source, which is in the public domain.
- "Interface Specification IS-GPS-705, Revision A" (PDF). Coast Guard Navigation Center. 8 June 2010. This article incorporates text from this source, which is in the public domain.
- "Civil Signals – Fourth Civil Signal: L1C". GPS.gov. 23 September 2016. Retrieved 28 December 2016. This article incorporates text from this source, which is in the public domain.
- "Interface Specification IS-GPS-800, Revision D" (PDF). National Coordination Office for Space-Based Positioning, Navigation, and Timing. 24 September 2013. This article incorporates text from this source, which is in the public domain.
- "GPS Control Segment". gps.gov. Retrieved 25 December 2016. This article incorporates text from this source, which is in the public domain.
- "GPS Status and Modernization Progress: Service, Satellites, Control Segment, and Military GPS User Equipment" (PDF). US Air Force Space and Missile Systems Center. 26 September 2018. Retrieved 10 November 2018. This article incorporates text from this source, which is in the public domain.
- "Military Communications & Positioning, Navigation, and Timing Overview & GPS Enterprise Update" (PDF). U.S. Space Force Space Systems Command. 6 November 2022. Retrieved 21 January 2023.
gpsworld.com (Global: low place; English: low place)
- Whitney, Steven (1 December 2017). "Directions 2018: The GPS year in review". GPS World. Retrieved 2 December 2017.
- "GPS III satellite delivery slips because of capacitor". GPS World. 15 September 2016. Retrieved 25 December 2016.
- Whitney, Steven (2 December 2016). "Directions 2017: GPS navigates the future". gpsworld.com. North Coast Media LLC. Retrieved 3 December 2017.
- "SpaceX launches GPS satellite to provide PNT services". GPS World. 18 June 2021. Retrieved 22 June 2021.
- Jewell, Don (12 August 2015). "L2C and Next-Generation Smart PNT Receivers". GPS World. Retrieved 28 December 2016.
- Staff, GPS World (1 September 2013). "Expert Advice: Laser Reflectors to Ride on Board GPS III". GPS World. Retrieved 21 August 2025.
- Colonel John Claxton (12 December 2019). "Directions 2020: Delivering GPS Capabilities". GPSWorld.com. Retrieved 21 January 2023.
- Dunn, Michael (2 May 2022). "Directions 2022: GPS positioned for the future". GPSWorld.com. Retrieved 21 January 2023.
- "Directions 2022: GPS positioned for the future – GPS World". 2 May 2022.
indiatimes.com (Global: 17th place; English: 15th place)
economictimes.indiatimes.com
- "US Air Force 'not happy' with delays on Lockheed GPS satellite – the Economic Times". economictimes.indiatimes.com. Archived from the original on 25 May 2014. Retrieved 13 January 2022.
insidegnss.com (Global: low place; English: low place)
- "GAO: New GPS Ground System, Not GPS III Engineering, Primary Cause for Delays". Inside GNSS. 30 November 2016. Archived from the original on 26 December 2016. Retrieved 25 December 2016.
- Divis, Dee Ann (January–February 2013). "More Than Money Worries: OCX and the New Civil Signals". Inside GNSS. Archived from the original on 2 December 2013. Retrieved 21 November 2013.
- Divis, Dee Ann (31 July 2017). "OCX Delayed Again as Development Jumps to $6 Billion". InsideGNSS.com. Archived from the original on 16 August 2017. Retrieved 15 August 2017.
- Divis, Dee Ann (30 November 2016). "GAO: New GPS Ground System, Not GPS III Engineering, Primary Cause for Delays". InsideGNSS. Gibbons Media & Research LLC. Archived from the original on 2 December 2017. Retrieved 1 December 2017.
- Divis, Dee Ann (27 April 2017). "OCX Passes Deep Dive Review; GAO Says Program Risk Remains High". InsideGNSS.com. Archived from the original on 28 April 2017. Retrieved 28 April 2017.
- "Counting 0, 1, 2, 3F: The Long Hello of GPS OCX". InsideGNSS.com. 6 May 2021. Retrieved 21 January 2023.
lockheedmartin.com (Global: 3,269th place; English: 2,848th place)
lockheedmartin.com
- "GPS III fact sheet" (PDF). LockheedMartin. Archived from the original (PDF) on 6 September 2015. Retrieved 6 May 2016.
- "U.S. Air Force Awards Lockheed Martin Contracts to Begin Work on Next Set of GPS III Satellites" (Press release) Lockheed Martin 25 February 2013
- "U.S. Air Force Awards Lockheed Martin GPS III Flight Operations Contract" (Press release) Lockheed Martin 31 May 2012
- "Fifth GPS III Satellite Takes to the Skies". Lockheed Martin. Retrieved 16 June 2021.
Lockheed Martin's sixth, seventh and eighth GPS III satellites are already complete, "Available for Launch" and just waiting for launch date arrangements.
news.lockheedmartin.com
- "Sixth GPS III Satellite Built By Lockheed Martin Launches As Part Of Constellation Modernization". Lockheed Martin. 18 January 2023. Retrieved 31 January 2023.
n2yo.com (Global: low place; English: low place)
- "NAVSTAR 82 (USA 343)". N2YO. Retrieved 21 January 2023.
nasa.gov (Global: 75th place; English: 83rd place)
ilrs.gsfc.nasa.gov
- "ILRS Meeting on Retroreflector Arrays" (PDF). This article incorporates text from this source, which is in the public domain.
- "Slides from ILRS Meeting on Retroreflector Arrays" (PDF). April 2006. This article incorporates text from this source, which is in the public domain.
searchandrescue.gsfc.nasa.gov
- "NASA Search and Rescue Mission Office : Distress Alerting Satellite System (DASS)". Archived from the original on 4 March 2016. This article incorporates text from this source, which is in the public domain.
nextspaceflight.com (Global: low place; English: low place)
- "Falcon 9 Block 5 | GPS III-6". Retrieved 7 November 2022.
- "Falcon 9 Block 5 | GPS III-7 (RRT-1)". nextspaceflight.com. Retrieved 17 December 2024.
northropgrumman.com (Global: 7,411th place; English: 5,111th place)
investor.northropgrumman.com
- "Northrop Grumman Corporation: News and Events – News Release". Archived from the original on 4 April 2014.
satellitetoday.com (Global: low place; English: low place)
- "Raytheon Awarded $886 Million GPS OCX Contract". Via Satellite. 1 March 2010. Retrieved 5 December 2022.
spaceflightnow.com (Global: 2,930th place; English: 2,204th place)
- Clark, Stephen (23 December 2018). "SpaceX closes out year with successful GPS satellite launch". Spaceflight Now. Retrieved 24 December 2018.
- "Space Force announces new nicknames for GPS satellites". Spaceflight Now. 2 October 2020. Retrieved 10 November 2025.
- Clark, Stephen (17 December 2018). "Air Force requirements will keep SpaceX from landing Falcon 9 booster after GPS launch". Spaceflight Now. Retrieved 18 December 2018.
- Clark, Stephen (23 December 2018). "SpaceX closes out year with successful GPS satellite launch". Spaceflight Now. Retrieved 24 December 2018.
spaceforce.mil (Global: 7,813th place; English: 4,791st place)
losangeles.spaceforce.mil
- "GPS Operational Control Segment". U.S. Air Force. 27 November 2012. Retrieved 25 December 2016. This article incorporates text from this source, which is in the public domain.
- "GPS Advanced Control Segment (OCX)". Archived from the original on 3 May 2012. This article incorporates text from this source, which is in the public domain.
- SMC Public Affairs Office (2 November 2017). "Air Force accepts delivery of GPS Next Generation Operational Control System". U.S. Air Force Space Command, Space and Missile System Center. Retrieved 3 December 2017. This article incorporates text from this source, which is in the public domain.
- U.S. Space Force Space and Missile Systems Center Public Affairs (3 May 2021). "OCX 3F Contract Awarded to Raytheon Intelligence and Space". Retrieved 21 January 2023.
ssc.spaceforce.mil
- "Sixth GPS III satellite safely arrives in Florida for January launch" (PDF). Space Systems Command. 25 October 2022. Retrieved 7 November 2022.
- "GPS III Space Vehicle 09 declared "Available for Launch"" (PDF). Space Systems Command. 26 August 2022. Retrieved 7 November 2022.
spoc.spaceforce.mil
- "GPS III SV-07 Receives Operational Acceptance". United States Space Force (Press release). 22 January 2025. Retrieved 7 April 2025.
spacenews.com (Global: 1,876th place; English: 1,225th place)
- "Lockheed Orders GPS 3A Satellite Buses from ATK". Archived from the original on 2 February 2013.
- Gruss, Mike (21 September 2016). "Lockheed Martin to build two more GPS 3 satellites for U.S. Air Force". Space News. Retrieved 22 September 2016.
- "Air Force declares Nunn-McCurdy breach on GPS ground system". SpaceNews.com. 1 July 2016.
stanford.edu (Global: 179th place; English: 183rd place)
web.stanford.edu
- Kolibaba, Ray (14 November 2012). "GPS OCX Program Status" (PDF). Stanford 2012 PNT Challenges and Opportunities Symposium. Retrieved 2 May 2017.
uscg.gov (Global: low place; English: 9,986th place)
navcen.uscg.gov
- "GPS Constellation Status". Retrieved 15 December 2025.
- U.S. Coast Guard Navigation Center. "GPS FAQ". U.S. Department of Homeland Security. This article incorporates text from this source, which is in the public domain.
- "NANU 2020-004". Retrieved 13 January 2020. This article incorporates text from this source, which is in the public domain.
- "NANU 2020-015". Retrieved 2 April 2020. This article incorporates text from this source, which is in the public domain.
- "NANU 2020-046". USCG Navigation Center. Retrieved 23 November 2020.
- "NANU 2020-086". USCG Navigation Center. Retrieved 2 December 2020.
- "NANU 2022-025". USCG Navigation Center. Retrieved 25 May 2022.
- https://www.navcen.uscg.gov/sites/default/files/gps/nanu/2025/2025046.nnu
web.archive.org (Global: 1st place; English: 1st place)
- "GPS III fact sheet" (PDF). LockheedMartin. Archived from the original (PDF) on 6 September 2015. Retrieved 6 May 2016.
- "Contracts for April 27, 2016". U.S. Department of Defense. Archived from the original on 14 August 2018. This article incorporates text from this source, which is in the public domain.
- "US Air Force 'not happy' with delays on Lockheed GPS satellite – the Economic Times". economictimes.indiatimes.com. Archived from the original on 25 May 2014. Retrieved 13 January 2022.
- "GAO: New GPS Ground System, Not GPS III Engineering, Primary Cause for Delays". Inside GNSS. 30 November 2016. Archived from the original on 26 December 2016. Retrieved 25 December 2016.
- Divis, Dee Ann (January–February 2013). "More Than Money Worries: OCX and the New Civil Signals". Inside GNSS. Archived from the original on 2 December 2013. Retrieved 21 November 2013.
- Divis, Dee Ann (31 July 2017). "OCX Delayed Again as Development Jumps to $6 Billion". InsideGNSS.com. Archived from the original on 16 August 2017. Retrieved 15 August 2017.
- "DOD Announces Start of Civil Navigation Message Broadcasting". U.S. Department of Defense. 25 April 2014. Archived from the original on 29 December 2016. Retrieved 28 December 2016. This article incorporates text from this source, which is in the public domain.
- Lazar, Steven (Summer 2002). "Modernization and the Move to GPS III" (PDF). Crosslink. 3 (2): 42–46. Archived from the original (PDF) on 4 April 2014. Retrieved 29 June 2012.
- "NASA Search and Rescue Mission Office : Distress Alerting Satellite System (DASS)". Archived from the original on 4 March 2016. This article incorporates text from this source, which is in the public domain.
- "GPS Advanced Control Segment (OCX)". Archived from the original on 3 May 2012. This article incorporates text from this source, which is in the public domain.
- Divis, Dee Ann (30 November 2016). "GAO: New GPS Ground System, Not GPS III Engineering, Primary Cause for Delays". InsideGNSS. Gibbons Media & Research LLC. Archived from the original on 2 December 2017. Retrieved 1 December 2017.
- Divis, Dee Ann (27 April 2017). "OCX Passes Deep Dive Review; GAO Says Program Risk Remains High". InsideGNSS.com. Archived from the original on 28 April 2017. Retrieved 28 April 2017.