The Air Force launched four GPS satellites into orbit this year, the highest number of GPS launches since 1993. But as the Air Force quickly upgrades its most recognizable space constellation, a little known group of Airmen works tirelessly behind the scenes.
Between the time a satellite is launched and the 50th Space Wing receives satellite control authority for it, a small team is busy testing and evaluating, ensuring that each spacecraft is ready to begin its job of providing position, navigation, and timing to more than 3 billion worldwide users.
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