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 1  0  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