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Which effect occurs when a GPS satellite's clock speed deviates from ground-based time?

A)Spacetime interval skew compensation
B)Gravitational redshift communication delay
C)Relativistic doppler shift error
D)Atmospheric refraction signal distortion

💡 Explanation

GPS satellites experience both time dilation and gravitational redshift; the spacetime interval contracts. The receiver compensates for this effect, because without a runtime **spacetime interval skew compensation**, positional errors would accumulate rapidly; therefore compensation is essential, rather than merely a time reading error.

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