Sect_10.2.3

10.2.3 GPS Surveying Standards

ASSIGNING THE ORDER OF A SURVEY

In Australia, the ORDER assigned to a survey network following constraint of that network to the existing control may be:

not higher than the ORDER of the existing stations constraining that network, and
not higher than the CLASS assigned to that survey.

The relationship between CLASS and ORDER is:

CLASS ORDER

3A Special high precision

2A 0

A 1

B 2

C 3

D 4

E 5

CLASS	ORDER
3A	Special high precision
2A	0
A	1
B	2
C	3
D	4
E	5

As in the case of the assignation of CLASS of survey, the allocation of ORDER is based on eqn (10.2-1), but applied to the output of the constrained network adjustment. As the concept of ORDER is based on the CLASS of the station, as well as the fit of the survey network to the existing control, the ORDER may be degraded by virtue of the quality of the surrounding control, or by the quality of the ties to that control.

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