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Problem:
Given the following observations and control station coordinates to accompany Figure, what are the most probable coordinates and error ellipse for station E using a weighted least squares adjustment?
Control stations
Station
X (ft)
Y (ft)
A
10,000.00
B
11,498.58
10,065.32
C
12,432.17
11,346.19
D
11,490.57
12,468.51
Angle observations
Backside, b
Occupied, i
Foresight, f
Angle
S(")
E
90o59'57"
5.3
40o26'02"
4.7
88o08'55"
4.9
52o45'02"
51o09'55"
4.8
93o13'14"
5.0
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