Appendix
DATUM
Manitoba and Ontario
Northwest Teritories and
Saskatchewan
Yukon
Canal Zone
Caribbean (Barbados, Caicos Islands,
Cuba, Dominican Republic, Grand Cayman,
Jamaica, Leeward Islands, and Turks Islands)
Central America
(Belize, Costa Rica,
El Salvador, Guatemala,
Honduras, and Nicaragua)*
Cuba
Greenland (Hayes Peninsula)
Mexico
NORTH AMERICAN 1983* GRS80
Alaska, Canada, Central America,
CONUS, Mexico)
OBSERVATORIO 1966
Corro, Santa Cruz,
and Flores Islands
(Azores)
OLD EGYPTIAN 1930*
Egypt
OLD HAWAIIAN
Mean Value*
Hawaii*
Kauai*
Maui*
Oahu*
OMAN*
Oman
ORDNANCE SURVEY OF GREAT BRITAIN 1936
Mean Value*
(England, Isle of Man, Scotland,
Shetland Islands, Wales)
England
England, Isle of Man, and
Wales
Scotland and Shetland Islands
Wales
PICO DE LAS NIEVES
Canary Islands
PITCAIRN ASTRO 1967*
Pitcairn Island
A-16
∆a
ELLIPSOID
-69.4
-69.4
-69.4
-69.4
-69.4
-69.4
-69.4
-69.4
-69.4
0
-0.00000016
International
-251
Helmert 1906
-63
Clarke 1866
-69.4
-0.37264639
-69.4
-69.4
-69.4
-69.4
Clarke
1880
-112.145
Airy
573.604
573.604
573.604
573.604
573.604
International
-251
International
-251
∆f x 10
∆X(m)
4
-0.37264639
-9
-0.37264639
-0.37264639
-7
-0.37264639
-0.37264639
-7
-0.37264639
-6
-0.37264639
-9
-0.37264639
11
-0.37264639
-12
0
-0.14192702
-425
0.00480795
-130
61
-285
-0.37264639
89
-0.37264639
45
-0.37264639
65
-0.37264639
56
-0.54750714
-346
0.11960023
371
0.11960023
371
0.11960023
371
0.11960023
384
0.11960023
370
-0.14192702
-307
-0.14192702
185
ProMARK X
∆Y(m)
∆Z(m)
157
184
4
159
188
139
181
0
125
201
152
178
127
192
152
178
114
195
130
190
0
0
-169
81
110
-13
-181
-279
-183
-290
-172
-290
-190
-284
-181
-1
224
-111
431
-112
434
-111
434
-111
425
-108
434
-92
127
165
42
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