37
ils has been
Table YI6.
best result
TABLE VII — SECOND-DEGREE ADJUSTMENTS PERFORMED AFTER THE COORDINATES OF ALL GROUND CONTROL
POINTS BECAME KNOWN: MEAN SQUARE VALUES, IN METERS, OF THE RESIDUALS IN ALL GROUND
CONTROL POINTS WITHOUT OBVIOUS ERRORS LARGER THAN 10 METERS
rp.snlhs nrp
lean square
A) Adjustment of each strip on all reliable ground control points
:e the best.
Zeiss
Jena 1818
Nistri ТАЗ
Wild A
7
Strip number
m A - m r
number m x
m A
number
m A
Illy
is is caused
of points
m total
of points m total
of points
^ tota 1
i the JNistri
1 32
4.1 3.0
30 5.4
3.6
34
4.6
3.5
is mapping
5.1
6.4
5.8
7 accuracy.
bting at the
2 38
3.1 2.6
39 3.8
3.4
36
3.4
3.6
istern sides
4.0
5.0
5.0
3 37
3.6 3.2
39 4.3
4.1
32
1.8
3.3
iss accurate
4.8
6.0
3.8
r flexibility
^warranted
4 41
3.4 2.8
42 3.3
3.2
37
4.6
3.4
4.4
4.6
5.6
5 32
3.0 3.3
40 3.3
2.7
38
3.2
3.4
4.4
4.3
4.6
6 37
4.0 3.2
39 4.0
4.9
37
5.6
4.2
it accuracy
5.2
6.3
7.0
! conformal
) by using
7 39
3.1 2.8
36 4.7
4.2
36
2.8
2.8
n formulas
4.2
6.3
4.0
trol points
8 39
2.5 3.0
37 3.3
3.1
40
5.0
4.8
rrors occur
4.0
4.5
7.0
trol points
avg. 1 295
3.4 3.0
302 4.0
3.7
290
4.1
3.7
aients with
4.5
5.4
5.5
ooints that
dng points
avg. 2 233
3.2 2.8
240 3.7
3.4
242
3.8
3.5
: ",
4.3
5.0
5.2
B) Block adjustment on reliable perimeter control
233
3.6 3.3
240 3.9
4.1
242
4.6
4.1
y 4
4.9
5.6
6.1
270
avg. 1: Not averaging the residuals
of points that occur in two strips.
avg. 2: Averaging
these residuals.
;ed. These
Comparison with Table VI6 shows that the elimination of identification errors
increases the accuracy of the block adjustments on perimeter control points in the
8 specified positions considerably. As could be expected, a further increase in accu
racy is obtained if a very great number of ground control points is used.