21-5 Mercator coordinates: from a global to a local datum 493
Table 21.12. Datum parameters.
t x = −584.911 m , t y = −66.121 m ,
t z = −402.257 m
α = 0”.0038 , β = 0
.0013 ,
γ = −2”.3960
s = −10.11 × 10
−6 ppm
a 1 = 6377397.155 m , A 1 = 6378137.000 m
e
2 = 0.0066743700 , E
2 = 0.00669438
Table 21.13. Local coordinates.
λ
ϕ
h
point (deg min
sec)
(deg min
sec)
(m)
1
6
0
0.0000
12
0
0.0000 1500.000
2
15
0
0.0000
6
0
0.0000 1000.000
3
14
0
0.0000
1
0
0.0000
500.000
4
6
0
0.0000
15
0
0.0000 1400.000
5
12
0
0.0000
9
0
0.0000
200.000
Table 21.14. Global coordinates.
Λ
Φ
H
point (deg min
sec)
(deg min
sec)
(m)
1
5
59
57.7487
12
0
9.6854
1486.898
2
14
59
54.7547
6
0
11.4852
946.327
3
13
59
55.1020
1
0
12.8335
415.134
4
5
59
57.7485
15
0
8.7493
1401.750
5
11
59
55.7340
9
0
10.6083
167.849
Table 21.15. Easting and Northing. Computed from (21.96) and (21.97).
point
Easting (m)
Northing (m)
1
667839.46837
1336701.67669
2
1669598.67093
664614.06647
3
1558292.09287
110569.36672
4
667839.46837
1677985.89579
5
1335678.93674
999245.35612