Table IA" gives the root mean square values, 
of the deviations of 
each tie point from the average obtained from two strips. These deviations are called 
the relative errors. As could be expected, they are smallest for the third-degree 
adjustments. For the second-degree adjustments, they increase only slightly with 
the increase in the number of used ground control points. In each case, they are 
sufficiently small to allow mapping at a scale of 1:50000. 
TABLE IV — MEAN SQUARE VALUES OF THE RELATIVE ERRORS IN THE TIE POINTS, IN METERS 
Zeiss Jena 1818 
Nistri TA3 
Wild A7 
m x 
m total 
m r 
m X 
111 tota I 
m r 
m x 
m total 
m 7 
Second-degree transforma- 
tion as a unit 
1.76 
1.77 
1.89 
2.03 
2.19 
2.22 
2.50 
2.77 
3.12 
Second-degree adjustments: 
test 8 
test 5 
test 1 
on corner control .... 
1.94 
1.79 
1.97 
2.08 
2.24 
2.32 
2.64 
2.86 
3.23 
test 9 
test 2 
on west and east control 
2.00 
1.87 
2.26 
2.41 
2.74 
3.31 
• 
test 10 
test 6 
test 3 
on perimeter control .. 
2.00 
1.92 
2.23 
2.26 
2.31 
2.42 
2.78 
3.18 
3.35 
Third-degree transforma- 
test 7 
test 4 
tion as a unit 
1.49 
1.87 
1.41 
1.77 
2.39 
2.26 
c) Residuals in ground control joints 
The residuals in the 18 known ground control points are listed in Table V. 
The residuals in all ground control points, received after submission of the results 
of the adjustments, are shown in graphs marked Test 1 to Test 10. 
V / [w] 
< , are listed in Table Vln. 
n 
The number of each test is listed in this table as well as in Table V. 
The following points have been omitted in the graphs and in the computation 
of mean square errors. 
32