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One reason for routinely launching GPS satellites is simply "constellation replenishment," said Col. Andrew Menschner, deputy commander of the Space Force's Space Systems Command. Old satellites degrade and die, and new ones need to go up and replace them. At least 24 GPS satellites are needed for global coverage, and having additional satellites in the fleet can improve navigation precision. Today, there are 31 GPS satellites in operational service, flying more than 12,000 miles (20,000 kilometers) above the Earth.
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时间，标注着承前启后的刻度，承载着接续奋斗的信念。，这一点在新收录的资料中也有详细论述
09:25, 28 февраля 2026Мир，推荐阅读新收录的资料获取更多信息