494 21 Datum problems
Table 21.16. Values (in m) of the terms of (21.96) and (21.97).
terms
point 1
point 2
point 3
point 4
point 5
x 0
667847.32987
1669630.16630
1558321.41475
667847.32369
1335701.97592
x 1
−77.46831
−193.67215
−180.76066
−77.46831
−154.93747
x 2
69.61488
162.19559
151.45635
69.62106
131.91359
x 3
−0.00807
−0.01881
−0.01756
−0.00807
−0.01530
y 0
1337134.43138
665032.56636
110974.20953
1678425.85952
999671.26343
y 1
−155.10363
−77.14180
−12.87267
−194.69242
−115.95890
y 2
26.56589
13.35831
2.23700
33.07201
19.98880
y 3
−304.22496
−354.73999
−394.24321
−278.34340
−329.95309
y 4
−0.01987
−0.00999
−0.00167
−0.02474
−0.01495
y 5
0.00153
0.00105
0.00021
0.00160
0.00136
y 6
−0.00308
−0.00154
−0.00025
−0.00383
−0.00231
y 7
−0.00586
−0.00707
−0.00794
−0.00523
−0.00649
y 8
0.03528
0.04114
0.04573
0.03228
0.03827
Table 21.17. Easting and Northing. Computed from (21.96) and (21.97) and their differences δE and δN
computed from Table 21.15.
point
Easting (m)
Northing (m)
δE (m)
δN (m)
1
667839.46837
1336701.67668
0.00000
0.00001
2
1669598.67093
664614.06646
0.00000
0.00001
3
1558292.09287
110569.36671
0.00000
0.00001
4
667839.46837
1677985.89579
0.00000
0.00000
5
1335678.93674
999245.35611
0.00000
0.00001
Table 21.18. Easting and Northing. Computed from (21.96) and (21.97) without the second-order terms and
their differences δE and δN computed from Table 21.15.
point
Easting (m)
Northing (m)
δE (m)
δN (m)
1
667839.47645
1336701.66858
−0.00808
0.00801
2
1669598.68975
664614.04287
−0.01882
0.02360
3
1558292.11044
110569.33064
−0.01757
0.03608
4
667839.47645
1677985.89572
−0.00808
0.00007
5
1335678.95205
999245.34023
−0.01531
0.01589
Table 21.19. Easting and Northing. Computed from (21.99) and (21.100) and their differences δE and δN
computed from Table 21.15.
point
Easting (m)
Northing (m)
δE (m)
δN (m)
1
667839.47033
1336701.69887
−0.00196
−0.02218
2
1669598.66261
664614.09336
+0.00832
−0.02689
3
1558292.08521
110569.39362
+0.00766
−0.02690
4
667839.47117
1677985.91764
−0.00280
−0.02185
5
1335678.93078
999245.38223
+0.00596
−0.02611
Table 21.16. Values (in m) of the terms of (21.96) and (21.97).
terms
point 1
point 2
point 3
point 4
point 5
x 0
667847.32987
1669630.16630
1558321.41475
667847.32369
1335701.97592
x 1
−77.46831
−193.67215
−180.76066
−77.46831
−154.93747
x 2
69.61488
162.19559
151.45635
69.62106
131.91359
x 3
−0.00807
−0.01881
−0.01756
−0.00807
−0.01530
y 0
1337134.43138
665032.56636
110974.20953
1678425.85952
999671.26343
y 1
−155.10363
−77.14180
−12.87267
−194.69242
−115.95890
y 2
26.56589
13.35831
2.23700
33.07201
19.98880
y 3
−304.22496
−354.73999
−394.24321
−278.34340
−329.95309
y 4
−0.01987
−0.00999
−0.00167
−0.02474
−0.01495
y 5
0.00153
0.00105
0.00021
0.00160
0.00136
y 6
−0.00308
−0.00154
−0.00025
−0.00383
−0.00231
y 7
−0.00586
−0.00707
−0.00794
−0.00523
−0.00649
y 8
0.03528
0.04114
0.04573
0.03228
0.03827
Table 21.17. Easting and Northing. Computed from (21.96) and (21.97) and their differences δE and δN
computed from Table 21.15.
point
Easting (m)
Northing (m)
δE (m)
δN (m)
1
667839.46837
1336701.67668
0.00000
0.00001
2
1669598.67093
664614.06646
0.00000
0.00001
3
1558292.09287
110569.36671
0.00000
0.00001
4
667839.46837
1677985.89579
0.00000
0.00000
5
1335678.93674
999245.35611
0.00000
0.00001
Table 21.18. Easting and Northing. Computed from (21.96) and (21.97) without the second-order terms and
their differences δE and δN computed from Table 21.15.
point
Easting (m)
Northing (m)
δE (m)
δN (m)
1
667839.47645
1336701.66858
−0.00808
0.00801
2
1669598.68975
664614.04287
−0.01882
0.02360
3
1558292.11044
110569.33064
−0.01757
0.03608
4
667839.47645
1677985.89572
−0.00808
0.00007
5
1335678.95205
999245.34023
−0.01531
0.01589
Table 21.19. Easting and Northing. Computed from (21.99) and (21.100) and their differences δE and δN
computed from Table 21.15.
point
Easting (m)
Northing (m)
δE (m)
δN (m)
1
667839.47033
1336701.69887
−0.00196
−0.02218
2
1669598.66261
664614.09336
+0.00832
−0.02689
3
1558292.08521
110569.39362
+0.00766
−0.02690
4
667839.47117
1677985.91764
−0.00280
−0.02185
5
1335678.93078
999245.38223
+0.00596
−0.02611