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"USA-126", "s": "Seventeenth Block IIA GPS satellite, decommissioned after over 18 years of service."}, "/e/satellite-navigation-and-gps/usa-71/": {"t": "USA-71", "s": "Second Block IIA GPS satellite, operational from 1991 to 2011."}, "/e/satellite-navigation-and-gps/usa-206/": {"t": "USA-206", "s": "Last Block IIR GPS satellite and final Delta II GPS launch."}, "https://codexery.com/communication-and-media/e/part-1/text-messaging/": {"t": "text-messaging", "s": ""}, "/e/satellite-navigation-and-gps/usa-150/": {"t": "USA-150", "s": "Fourth Block IIR GPS satellite, replaced the first operational GPS satellite."}, "https://codexery.com/historical-figures/e/notable/amerigo-vespucci/": {"t": "Amerigo Vespucci", "s": "Italian explorer after whom the Americas are named."}, "/e/satellite-navigation-and-gps/usa-35/": {"t": "USA-35", "s": "First operational Block II GPS satellite, launched on maiden Delta II flight."}}