GPS coordinates calculated when satellites are clustered close together in the sky is described as:

GPS coordinates calculated when satellites are clustered close together in the sky is described as:

• A. Dilution Of Position
• B. Geometric Dilution Of Precision
• C. Ephemeris Dilution
• D. DOP (Dilution Of Precision)

Answer: (D)

Position accuracy in GPS is influenced by satellite geometry—the way the satellites are spread across the sky affects how measurement errors combine to form the final coordinates. When satellites are clustered together, the geometry is poor, so the measurements don’t constrain the position very well and the potential error grows. This effect is described by Dilution Of Precision, or DOP. A high DOP signals unfavorable geometry and less reliable coordinates, while a low DOP indicates good geometry and more precise results. The standard term for this concept is Dilution Of Precision (DOP), which is why this scenario is described by that metric. Other terms either refer to different ideas (like ephemeris data) or use nonstandard phrasing that doesn’t name the metric.

Position accuracy in GPS is influenced by satellite geometry—the way the satellites are spread across the sky affects how measurement errors combine to form the final coordinates. When satellites are clustered together, the geometry is poor, so the measurements don’t constrain the position very well and the potential error grows. This effect is described by Dilution Of Precision, or DOP. A high DOP signals unfavorable geometry and less reliable coordinates, while a low DOP indicates good geometry and more precise results. The standard term for this concept is Dilution Of Precision (DOP), which is why this scenario is described by that metric. Other terms either refer to different ideas (like ephemeris data) or use nonstandard phrasing that doesn’t name the metric.