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← ScienceWhich risk increases for space-based GPS satellites due to gravitational curvature?
A)Clock timing signal drift✓
B)Antenna signal multipath errors
C)Solar panel thermal degradation
D)Onboard gyroscope mechanical failure
💡 Explanation
Gravitational time dilation affects clocks at different gravitational potentials; this is spacetime curvature. General Relativity predicts faster time on orbit. Clock timing signal drift occurs because satellite clocks age at a different rate than ground clocks, therefore time must constantly reconcile and reduce drift, rather than the others.
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