Africa 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 SAHARA 1959

Algeria

NSD Clarke 1880 -112.145 -0.54750714 3  0 1993 -186
+/-25
-93
+/-25
310
+/-25

VOIROL 1960

Algeria

VOR Clarke 1880  -112.145 -0.54750714 2 0 1993 -123
+/-25
-206
+/-25
219
+/-25

VOIROL 1874

Algeria/Tunisia See Note 1

VOI Clarke 1880  -112.145 -0.54750714   0 1997 -73 -247 227

ADINDAN

Burkina Faso

ADI-E Clarke 1880  -112.145 -0.54750714 1 0 1991 -118
+/-25
-14
+/-25
218
+/-25 

ARC 1950

Botswana

ARF-A Clarke 1880 -112.145 -0.54750714 9 0 1991 -138
+/-3
-105
+/- 5
-289
+/-3

ARC 1950

Burundi

ARF-H Clarke 1880 -112.145 -0.54750714 3 0 1991 -153
+/-20
- 5
+/-20
-292
+/-20

ADINDAN

Cameroon

 
ADI-F Clarke 1880 -112.145 -0.54750714 1 0 1991 -134
+/-25

-2
+/-25

210
+/-25 

MINNA

Cameroon

MIN-A Clarke 1880 -112.145 -0.54750714 2 0 1991 - 81
+/-25
- 84
+/-25
115
+/-25 

POINTE NOIRE 1948

Congo      See Note 2

PTN Clarke 1880 -112.145 -0.54750714 1991  -148
+/-25
51
+/-25
-291
+/-25 

AYABELLE LIGHTHOUSE

Djibouti

PHA Clarke 1880  -112.145 -0.54750714 1 0 1991 - 79
+/-25
-129
+/-25
145
+/-25 

EUROPEAN 1950

Egypt

EUR-F International 1924 -251 -0.14192702 14 0 1991  -130
+/-6
- 117 +/-8 -151
+/-8 

OLD EGYPTIAN 1907

Egypt

OEG Helmert 1906 -63  0.00480795 14 0 1987 -130
+/-3
+110
+/-6
-13
+/-8

MASSAWA

Eritrea (Ethiopia) See Note 3

MAS Bessel 1841 739.845 0.10037483 1 0 1987 639
+/-25
405
+/-25
60
+/-25

ADINDAN

Ethiopia See Note 3

ADI-A Clarke 1880 -112.145 -0.54750714 8 0 1991  -165
+/-3
-11
+/-3
206
+/-3

M'PORALOKO

Gabon

MPO Clarke 1880 -112.145 -0.54750714 1 0 1991 -74
+/-25
-130
+/-25
42
+/-25

LEIGON

Ghana

LEH Clarke 1880 -112.145 -0.54750714 8 0 1991 -130
+/-2
29
+/-3
364
+/-2

BISSAU

Guinea-Bissau

BID International 1924 -251 -0.14192702 2 0 1991 -173
+/-25
253
+/-25
27
+/-25

DABOLA

Guinea

DAL  Clarke 1880 -112.145 -0.54750714 4 0 1991 -83
+/-15
37
+/-15
124
+/-15

ARC 1960

Kenya

ARS-A Clarke 1880  -112.145 -0.54750714 24 0 1997 -157
+/-4
- 2
+/-3
-299
+/-3

ARC 1950

Lesotho

ARF-B Clarke 1880 -112.145 -0.54750714 5 0 1991 -125
+/-3
-108
+/-3
-295
+/-8

LIBERIA 1964

Liberia

LIB Clarke 1880 -112.145 -0.54750714 4 0 1987 -90
+/-15
40
+/-15
88
+/-15

ADINDAN

Mean Solution

(Ethiopia and Sudan) See Note 3

ADI-M Clarke 1880 -112.145 -0.54750714 22 0 1991 -166
+/-5
-15
+/-5
204
+/-3

ARC 1950

Mean Solution

(Botswana,Lesotho,Malawi, Swaziland, Zaire, Zambia, Zimbabwe)      See Note 2

ARF-M Clarke 1880 -112.145 -0.54750714 41 0 1987 -143
+/-20
-90
+/-33
-294
+/-20

ARC 1960

Mean Solution

(Kenya and Tanzania)

ARS-M Clarke 1880 -112.145 -0.54750714 25 0 1991 -160
+/-20
-6
+/-20
-302
+/-20

POINT 58

Mean Solution

(Burkina Faso and Niger)

PTB Clarke 1880 -112.145 -0.54750714 2 0 1991 -106
+/-25
-129
+/-25
165
+/-25

TANANARIVE OBSERVATORY 1925

Madagascar See Note 1

TAN International 1924 -251 -0.14192702   0 1987 -189 -242 -91

ARC 1950

Malawi

ARF-C Clarke 1880 -112.145 -0.54750714 6 0 1991 -161
+/-9
-73
+/-24
-317
+/-8

ADINDAN

Mali

ADI-C Clarke 1880 -112.145 -0.54750714 1 0 1991 -123
+/-25
-20
+/-25
220
+/-25

MERCHICH

Morocco

MER  Clarke 1880 -112.145 -0.54750714 9 0 1987 31
+/-5
146
+/-3
47
+/-3 

SCHWARZECK

Namibia

SCK Bessel 1841 653.135* -0.10037483 3 0 1991 616
+/-20
97
+/-20
-251
+/-20

MINNA

Nigeria

MIN-B Clarke 1880 -112.145 -0.54750714 6 0 1987 -92
+/- 3
-93
+/- 6
122
+/- 5

ADINDAN

Senegal

ADI-D Clarke 1880 -112.145 -0.54750714 2 0 1991 -128
+/-25
-18
+/-25
224
+/-25

SIERRA LEONE 1960

Sierra Leone

SRL Clarke 1880 -112.145 -0.54750714 8 0 1997 -88
+/-15
4
+/-15
101
+/-15

AFGOOYE

Somalia

AFG Krassovsky 1940 -108 0.00480795 1 0 1987 -43
+/-25
-163
+/-25
45
+/-25

CAPE

South Africa

CAP Clarke 1880 -112.145 -0.54750714 5 0 1987 -136
+/-3
-108
+/- 6
-292
+/-6

ADINDAN

Mean Solution

(Sudan and Ethiopia) See Note 3

ADI-M Clarke 1880  -112.145  -0.54750714 22 0 1991 -166
+/- 5
-15
+/-5
204
+/-3

ADINDAN

Sudan

ADI-B Clarke 1880 -112.145 -0.54750714 14 0 1991 -161
+/- 3
-14
+/- 5
+205
+/- 3
ARC 1950

Swaziland

ARF-D Clarke 1880 -112.145 -0.54750714 4 0 1991 -134
+/-15
-105
+/-15
-295
+/-15

ARC 1960

Tanzania

ARS-B Clarke 1880 -112.145 -0.54750714 12 0 1997 -175
+/- 6
-23
+/- 9
-303
+/-10

CARTHAGE

Tunisia

CGE Clarke 1880 -112.145 -0.54750714 5 0 1987 -263
+/- 6
6
+/-9
431
+/- 8

EUROPEAN 1950

Tunisia

EUR-T Intrnational 1924 -251  -0.14192702 4 0 1993 -112
+/-25
-77
+/-25
-145
+/-25

VOIROL 1874

Tunisia/Algeria See Note 1

VOI Clarke 1880 -112.145 -0.54750714   0 1997 -73 -247 -227

ARC 1950

Zaire (Congo)      See Note 2

ARF-E Clarke 1880 -112.145 -0.54750714 2 0 1991 -169
+/-25
-19
+/-25
-278
+/-25

ARC 1950

Zambia

ARF-F Clarke 1880 -112.145 -0.54750714 5 0 1991 -147
+/-21
-74
+/-21
-283
+/-27

ARC 1950

Zimbabwe

ARF-G Clarke 1880 -112.145 -0.54750714 10 0 1991 -142
+/- 5
-96
+/- 8
-293
+/-11

Africa Map


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Document last modified Monday, 29-Apr-2013 11:16:14 EDT