North America Datums Table


Local Geodetic Datums Reference Ellipsoids and Parameter Differences

No. of Satellite Stations Used

     Transformation Parameters
 Name
 Code
 Name DA(M) Df x 104   Cycle No. Pub Date  DX(m)  DY(m)  DZ(m)

NORTH AMERICAN 1927

Alaska (Exluding Aleutian Islands)

NAS-D Clarke 1866 -69.4 -0.37264639 47 0 1987 -5
+/-5
135
+/-9
172
+/-5

NORTH AMERICAN 1983

Alaska (Exluding Aleutian Islands)

NAR-A GRS 80 0 -0.00000016 42 0 1987 0
+/-2
0
+/-2
0
+/-2

NORTH AMERICAN 1927

Aleutian Islands-East of 180° W

NAS-V Clarke 1866 -69.4 -0.37264639 6 0 1993 -2
+/-6
152
+/-8
149
+/-10

NORTH AMERICAN 1927

Aleutian Islands-West of 180° W

NAS-W Clarke 1866 -69.4 -0.37264639 5 0 1993 2
+/-10
204
+/-10
105
+/-10

NORTH AMERICAN 1927

Alberta and British Columbia

NAS-F Clarke 1866 -69.4 -0.37264639 25 0 1991 -7
+/-8
162
+/-8
188
+/-6

NORTH AMERICAN 1983

Aleutian Islands

NAR-E GRS 80 0 0.00000016 4 0 1993 -2
+/-5
-0
+/-2
4
+/-5

NORTH AMERICAN 1927

Bahamas (Excluding San Salvador Island)

NAS-Q Clarke 1866 -69.4 -0.37264639 11 0 1987 -4
+/-5
154
+/-3
178
+/- 5

NORTH AMERICAN 1927

British Columbia and Alberta

NAS-F Clarke 1866 -69.4 -0.37264639 25 0 1991 -7
+/-8
162
+/-8
188
+/-6

NORTH AMERICAN 1927

Eastern Canada (Newfoundland, New Brunswick, Nova Scotia and Quebec)

NAS-G Clarke 1866 -69.4 -0.37264639 37 0 1991 -22
+/-6
160
+/-6
190
+/-3

NORTH AMERICAN 1927

Canada Mean Solution (Including Newfoundland)

NAS-E Clarke 1866 -69.4 -0.37264639 112 0 1987 -10
+/-15
158
+/-11
187
+/-6

NORTH AMERICAN 1983

Canada

NAR-B GRS 80 0 -0.00000016 96 0 1987 0
+/-2
0
+/-2
0
+/-2

NORTH AMERICAN 1927

Canal Zone

NAS-O Clarke 1866 -69.4 -0.37264639 3 0 1987 0
+/-20
125
+/-20
201
+/-20

NORTH AMERICAN 1927

Caribbean (Antigua Island, Barbados, Barbuda, Caicos Island, Cuba, Dominican Republic, Grand Cayman, Jamaica and Turks Islands)

NAS-P Clarke 1866 -69.4 -0.37264639 15 0 1991 -3
+/-3
142
+/-9
183
+/-12

NORTH AMERICAN 1927

Central America (Belize,Costa Rica, El Salvador, Guatemala, Honduras and Nicaragua)

NAS-N Clarke 1866 -69.4 -0.37264639 19 0 1987 0
+/-8
125
+/-3
194
+/-5

NORTH AMERICAN 1983

Mexico and Central America

NAR-D GRS 80 0 -0.00000016 25 0 1987 0
+/-2
0
+/-2
0
+/-2

NORTH AMERICAN 1983

CONUS

NAR-C GRS 80 0 -0.00000016 216 0 1987 0
+/-2
0
+/-2
0
+/-2

NORTH AMERICAN 1927

Cuba

NAS-T Clarke 1866 -69.4 -0.37264639 1 0 1987 -9
+/-25
152
+/-25
178
+/-25

NORTH AMERICAN 1927

Greenland (Hayes Peninsula)

NAS-U Clarke 1866 -69.4 -0.37264639 2 0 1987 11
+/-25
114
+/-25
195
+/-25

QORNOQ

South Greenland

QUO International 1924 -251 -0.14192702 2 0 1987 164
+/-25
138
+/-25
-189
+/-32

NORTH AMERICAN 1983

Hawaii

NAR-H GRS 80 0 -0.00000016 6 0 1993 1
+/-2
1
+/-2
-1
+/-2

NORTH AMERICAN 1927

Manitoba and Ontario

NAS-H Clarke 1866 -69.4 -0.37264639 25 0 1991 -9
+/-9
157
+/-5
184
+/-5

NORTH AMERICAN 1927

Mean Solution
(CONUS)

NAS-C Clarke 1866 -69.4 -0.37264639 405 0 1987 -8
+/-5
160
+/-5
176
+/-6

NORTH AMERICAN 1927

Canada Mean Solution
(Including Newfoundland)

NAS-E Clarke 1866 -69.4 -0.37264639 112 0 1987 -10
+/-15
158
+/-11
187
+/-6

CAPE CANAVERAL

Mean Solution
(Florida and Bahamas)

CAC Clarke 1866 -69.4 -0.37264639 19 0 1991 -2
+/-3
151
+/-3
181
+/-3

NORTH AMERICAN 1927

Mexico

NAS-L Clarke 1866 -69.4 -0.37264639 22 0 1987 -12
+/-8
130
+/-6
190
+/-6

NORTH AMERICAN 1983

Mexico and Central America

NAR-D GRS 80 0 -0.00000016 25 0 1987 0
+/-2
0
+/-2
0
+/-2

NORTH AMERICAN 1927

Northwest Territories and Saskatchewan

NAS-I Clarke 1866 -69.4 -0.37264639 17 0 1991 4
+/-5
159
+/-5
188
+/-3

NORTH AMERICAN 1927

San Salvador Island

NAS-R Clarke 1866 -69.4 -0.37264639 1 0 1987 1
+/-25
140
+/-25
165
+/-25

NORTH AMERICAN 1927

Saskatchewan and Northwest Territories

NAS-I Clarke 1866 -69.4 -0.37264639 17 0 1991 4
+/-5
159
+/-5
188
+/-3

NORTH AMERICAN 1927

Eastern United States
(Alabama, Connecticut, Delaware, District of Columbia, Florida, Georgia, Illinois, Indiana, Kentucky, Louisiana, Mainem Maryland, Massachusetts, Michigan, Minnesota, Mississippi, Missouri, New Hampshire, New Jersey, New York, North Carolina, Ohio, Pennsylvania, Rhode Island,South Carolina, Tennessee, Vermont, Virginia, West Virginina and Wisconsin)

NAS-A Clarke 1866 -69.4 -0.37264639 129 0 1991 -9
+/-5
161
+/-5
179
+/-8

NORTH AMERICAN 1927

Western United States
(Arizona, Arkansas, California, Colorado, Idaho, Iowa, Kansas, Montana, Nebraska, Nevada, New Mexico, North Dakota, Oklahoma,Oregon, South Dakota, Texas, Utah, Washington and Wyoming)

 

NAS-B Clarke 1866 -69.4 -0.37264639 276 0 1991 -8
+/-5
159
+/-3
175
+/-3

NORTH AMERICAN 1927

Yukon

NAS-J Clarke 1866 -69.4 -0.37264639 8 0 1991 -7
+/-5
139
+/-8
181
+/-3


North America Map  Central America Map


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