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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The sweeping revisions to the agency's program came during an update on repairs to the Space Launch System rocket, which will launch Artemis II, a 10-day lunar flyby mission with a crew, as early as April.
Her father, known for his roles in films such as The Three Amigos, Father Of the Bride and Innerspace, has postponed a string of live shows with his comedy partner Steve Martin.
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