Which of the following is assumed when determining the geodetic datum by a single
astronomical point and one astronomical azimuth method?
The ellipsoid and geoid are congruent
The normal to the ellipsoid and the normal to the geoid are not in coincidence
The ellipsoid and geoid have the maximum geoidal separation
The perpendicular to the ellipsoid and the plumb line coincide.
The meridional component of the deflection of the vertical is the same as the difference between
Geodetic and astronomic longitude
Geodetic and astronomic azimuth
Theoretical and observed gravity
The Laplace equation is used to determine __________________________________________.
The accuracy of observed geodetic and astronomic data
A Laplace station
The theoretical gravity at the point of origin
Gravity anomalies at the point of origin
What is one weakness in the preferred datums in use today?
Too few connections provide weak ties
There is only one absolute datum in use
All of the datums are relative
All of the datums are absolute and the Tokyo datum is relative