What is the right choice of answers to the following two que

What is the right choice of answers to the following two questions?

The antenna nominal phase center ___________.

a. varies with tracked SV elevation
b. varies with ionospheric changes

___ ____ describes the planned orbit of the SV you are observing. We work from an orbital trajectory uploaded once a day, and updated internally and broadcast every two hours. Accuracy deteriorates over time.

   a. UTC time
   b. Broadcast ephemeris

Solution

The antenna nominal phase center varies with ionospheric changes

UTC time describes the planned orbit of the sv you are observing. We work from an orbital trajectory uploaded once a day and updated internally and broadcast every two hours. Accuracy deteriorate over time.