Datum: Adindan
Geodetic Datum used in Africa - Eritrea, Ethiopia, South Sudan and Sudan
Adindan
is a geodetic datum first defined in 1958-01-01
and is suitable for use in Eritrea; Ethiopia; South Sudan; Sudan..
Adindan
references the Clarke 1880 (RGS) ellipsoid and the Greenwich prime meridian.
Adindan origin is Fundamental point: Station 15; Adindan. Latitude: 22°10'07.110"N, longitude: 31°29'21.608"E (of Greenwich).
Adindan is a geodetic datum for Topographic mapping.
It was defined by information from US Coast and Geodetic Survey via Geophysical Reasearch vol 67 #11, October 1962. The 12th parallel traverse of 1966-70 (Point 58 datum, code 6620) is connected to the Blue Nile 1958 network in western Sudan. This has given rise to misconceptions that the Blue Nile network is used in west Africa.
Adindan
Datum Details
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Datum Name: | Adindan |
Code: | 6201 |
Area Of Use: |
Africa - Eritrea, Ethiopia, South Sudan and Sudan
Area Details
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Area Name: | Africa - Eritrea, Ethiopia, South Sudan and Sudan |
Area Code: | 1271 |
Description: | Eritrea; Ethiopia; South Sudan; Sudan. |
Extents: |
|
22.24 ° |
|
21.82 ° |
|
47.99 ° |
|
3.4 ° |
|
|
Meta Data |
Information Source: | OGP |
Data Source: | OGP |
Revision Date: | February 16, 2019 |
Change Id: |
[2002.810] [2012.001] [2014.024] |
|
Scope: | Topographic mapping. |
Type: | geodetic |
Realization Epoch: | 1958-01-01 |
Origin: | Fundamental point: Station 15; Adindan. Latitude: 22°10'07.110"N, longitude: 31°29'21.608"E (of Greenwich). |
Ellipsoid: | Clarke 1880 (RGS)
Ellipsoid Details |
Name: | Clarke 1880 (RGS) |
Code: | 7012 |
Shape: | Ellipsoid |
Semi-Major Axis: |
6378249.145 metre
Unit Details
|
Unit Name: | metre |
Unit Code: | 9001 |
Type: | length |
Target Unit: | metre |
Meta Data |
Remarks: | Also known as International metre. SI standard unit. |
Information Source: | ISO 1000. |
Data Source: | IOGP |
Revision Date: | February 16, 2019 |
Change Id: |
[2015.062] |
|
Inverse Flattening: | 293.465 |
Meta Data |
Remarks: | Adopts Clarke's values for a and 1/f. Adopts his 1865 ratio of 39.370432 inches per metre to convert semi-major axis to metres. Also known as Clarke Modified 1880. |
Information Source: | Empire Survey Review #32; 1939. |
Data Source: | OGP |
Revision Date: | February 16, 2019 |
|
Prime Meridian: | Greenwich
Prime Meridian Details
|
Name: | Greenwich |
Code: | 8901 |
Greenwich Longitude: |
0
degree
Unit Details
|
Unit Name: | degree |
Unit Code: | 9102 |
Type: | angle |
Target Unit: | radian
Unit Details
|
Unit Name: | radian |
Unit Code: | 9101 |
Type: | angle |
Target Unit: | radian |
Meta Data |
Remarks: | SI standard unit. |
Information Source: | ISO 1000:1992 |
Data Source: | IOGP |
Revision Date: | February 16, 2019 |
Change Id: |
[2015.062] |
|
Meta Data |
Remarks: | = pi/180 radians |
Information Source: | |
Data Source: | IOGP |
Revision Date: | February 16, 2019 |
Change Id: |
[1996.220] [2002.860] [2015.062] |
|
Meta Data |
Remarks: | The international reference meridian as defined first by the 1884 International Meridian Conference and later by the Bureau International de l'Heure (BIH) and then the International Earth Rotation Service (IERS). |
Information Source: | OGP |
Data Source: | IOGP |
Revision Date: | February 16, 2019 |
Change Id: |
[1996.290] [2016.045] |
|
Applicable CRS-s: |
The following CRS are based on this datum:
[Adindan] |
Meta Data |
Remarks: | The 12th parallel traverse of 1966-70 (Point 58 datum, code 6620) is connected to the Blue Nile 1958 network in western Sudan. This has given rise to misconceptions that the Blue Nile network is used in west Africa. |
Information Source: | US Coast and Geodetic Survey via Geophysical Reasearch vol 67 #11, October 1962. |
Data Source: | IOGP |
Revision Date: | February 16, 2019 |
Change Id: |
[2002.431] [2003.361] [2008.045] [2015.010] |
Alias: |
Alias |
Naming System |
Remarks |
Blue Nile 1958 |
EPSG alias |
|
D_Adindan |
ESRI |
|
|