Breadcrumb Home 9B10.70 - GPS Code Number: 9B10.70Demo Title: GPSCondition: ExcellentPrinciple: GPS TechnologyArea of Study: FacilitiesReferences:William Baird, Adrian Pizano, Jordan Ruff, "GPS-Synchronized Data Collecion and Time Stamping", TPT, Vol. 60, #7, Oct. 2022, p. 602.Kendra Redmond, "Oct. 27, 1930: Birth of Gladys West, the Mathematician Who Laid the Groundwork for GPS", APS New, Vol. 33, #9, Oct. 2024, p. 2.