iSuiteTM 3  - Map Datums

  1. iSuiteTM 3  - Map Datums
    1. Introduction
    2. Datums
    3. Grids
    4. Supported Datum IDs

Introduction

This page describes the available datums in the iSuite software.

Datums

The geodetic agencies in different countries have specified hundreds of different coordinate systems, for historical reasons and also because these different coordinate systems match better the real shape of the Earth in their region of interest.  The main difference between most of  these coordinate systems is the difference ellipsoid they use to calculate the latitude, longitude and altitude. The difference between coordinates expressed in different datums is typically a few tens or hundreds of meters.

The WGS84 datum is the ellipsoid defined as the standard one for GPS usage. The iSuite always calculates the position (lat, long, alt) on the WGS84 ellipsoid, and depending on the parameter settings, the coordinates are converted to the local datum. The datums supported by the iSuite software are listed below in this page.

Most software products nowadays expect coordinates in the WGS84 datum, so the default settings of iSuite are most often correct. However, it is important to be aware of the difference between datums, and to verify the datum that is used by maps or software.

Grids

In addition to the datums, geodetic agencies also define national grids, which express the coordinates as coordinates on axes pointing eastwards and northwards (called easting and northing). The origin of the grid is in some position that depends on the grid. The grid is obtained by projecting the local datum's reference ellipsoid on a surface and measuring the easting and northing on the projected surface. There are hundreds of different grids defined by various countries, and they differ in the reference ellipsoid, the surface of projection, and the projection method. The grid is typically defined so that the easting and northing conveniently match the "real" east and north directions in a relatively small area of the Earth. (It is impossible to define a single grid that works well for the whole Earth.)

The only grid currently supported by the iSuite SDK is the UTM grid which corresponds to the WGS84 coordinate system. The UTM actually defines many grid zones over the Earth, and the size of one grid zone is a few degrees in latitude and longitude.

Supported Datum IDs

Note: If you have used Datums for iTrax02 before, note that the datum id's for iTrax03 are different.

Datum id

Name

Description

000

WGS84

Global WGS84 coordinate system

001

ADI-M

Mean Solution (Ethiopian and Sudan)

002

ADI-E

Burkina Faso

003

ADI-F

Cameroon

004

ADI-A

Ethiopia

005

ADI-C

Mali

006

ADI-D

Senegal

007

ADI-B

Sudan

008

AFG

Somalia

009

ARF-A

Botswana

010

ARF-H

Burundi

011

ARF-B

Lesotho

012

ARF-C

Malawi

013

ARF-D

Swaziland

014

ARF-E

Zaire

015

ARF-F

Zambia

016

ARF-G

Zimbabwe

017

ARS-M

Mean Solution (Kenya and Tanzania)

018

ARS-A

Kenya

019

ARS-B

Tanzania

020

PHA

Djibouti

021

BID

Guinea-Bissau

022

CAP

South Africa

023

CGE

Tunisia

024

DAL

Guinea

025

EUR-F

Egypt

026

EUR-T

Tunisia

027

LEH

Ghana

028

LIB

Liberia

029

MAS

Eritrea

030

MER

Morocco

031

MIN-A

Cameroon

032

MIN-B

Nigeria

033

MPO

Gabon

034

NSD

Algeria

035

OEG

Old Egypt

036

PTB

Mean Solution (Burkina Faso and Niger)

037

PTN

Congo

038

SCK

Namibia

039

SRL

Sierra Leone

040

VOR

Algeria

041

AIN-A

Bahrain Island

042

AIN-B

Saudi Arabia

043

BAT

Sumatra (Indonesia)

044

EUR-H

Iran

045

HKD

Hong Kong

046

HTN

Taiwan

047

IND-B

Bangladesh

048

IND-I

India and Nepal

049

INF-A

Thailand

050

ING-A

Vietnam (near 16deg N)

051

ING-B

Con Son Island (Vietnam)

052

INH-A1

Thailand (1997)

053

IDN

Indonesia

054

KAN

Sri Lanka

055

KEA

West Malaysia and Singapore

056

KGS

Korean Geodetic System

057

NAH-A

Masirah Island (Oman)

058

NAH-B

United Arab Emirates

059

NAH-C

Saudi Arabia

060

FAH

Oman

061

QAT

Qatar

062

SOA

Singapore

063

TIL

Brunei and East Malaysia (Sarawak and Sabah)

064

TOY-M

Mean Solution (Japan, Okinawa and South Korea)

065

TOY-A

Japan

066

TOY-C

Okinawa

067

TOY-B

South Korea

068

AUA

Australia and Tasmania (Australian geodetic 1966)

069

AUG

Australia and Tasmania (Australian geodetic 1984)

070

EST

Estonia

071

EUR-M

Mean Solution (Europe 1950)

072

EUR-A

Western Europe (1950)

073

EUR-E

Cyprus

074

EUR-G

England, Channel Islands, Scotland and Shetland Islands

075

EUR-K

England, Ireland, Scotland and Shetland Islands

076

EUR-B

Greece

077

EUR-I

Italy (Sardinia)

078

EUR-J

Italy (Sicily)

079

EUR-L

Malta

080

EUR-C

Finland and Norway

081

EUR-D

Portugal and Spain

082

EUS

Mean Solution (European 1979)

083

HJO

Iceland

084

IRL

Ireland

085

OGB-M

Mean Solution (England, Isle of Man, Scotland, Shetland Islands and Wales)

086

OGB-A

England

087

OGB-B

England, Isle of Man and Wales

088

OGB-C

Scotland and Shetland Islands

089

OGB-D

Wales

090

MOD

Sardinia

091

SPK-A

Hungary

092

SPK-B

Poland

093

SPK-C

Czechoslovakia

094

SPK-D

Latvia

095

SPK-E

Kazakhstan

096

SPK-F

Albania

097

SPK-G

Romania

098

CCD

Czechoslovakia

099

CAC

Mean Solution (Florida and Bahamas)

100

NAS-C

Mean Solution (CONUS)

101

NAS-B

Western USA

102

NAS-A

Eastern USA

103

NAS-D

Alaska (excluding Aleutian Islands)

104

NAS-V

Aleutian Islands (East of 180deg W)

105

NAS-W

Aleutian Islands (West of 180deg W)

106

NAS-Q

Bahamas (exluding San Salvador Island)

107

NAS-R

San Salvador Island

108

NAS-E

Canada Mean Solution (including Newfoundland)

109

NAS-F

Alberta and British Columbia

110

NAS-G

Eastern Canada

111

NAS-H

Manitoba and Ontario

112

NAS-I

NW Territories and Saskatchewan

113

NAS-J

Yukon

114

NAS-O

Canal Zone

115

NAS-P

Caribbean

116

NAS-N

Central America

117

NAS-T

Cuba

118

NAS-U

Greenland (Hayes Peninsula)

119

NAS-L

Mexico

120

NAR-A

Alaska (excluding Aleutian Islands)

121

NAR-E

Aleutian Islands

122

NAR-B

Canada

123

NAR-C

CONUS

124

NAR-H

Hawaii

125

NAR-D

Mexico and Central America

126

BOO

Colombia

127

CAI

Argentina

128

CHU

Paraguay

129

COA

Brazil

130

PRP-M

Mean Solution (Bolivia, Chile, Colombia, Ecuador, Guyana, Peru and Venezuela)

131

PRP-A

Bolivia

132

PRP-B

Northern Chile (near 19deg S)

133

PRP-C

Southern Chile (near 43deg S)

134

PRP-D

Colombia

135

PRP-E

Ecuador

136

PRP-F

Guyana

137

PRP-G

Peru

138

PRP-H

Venezuela

139

HIT

Southern Chile (near 53deg S)

140

SAN-M

Mean Solution

141

SAN-A

Argentina

142

SAN-B

Bolivia

143

SAN-C

Brazil

144

SAN-D

Chile

145

SAN-E

Colombia

146

SAN-F

Ecuador (excluding Galapagos Islands)

147

SAN-J

Baltra, Galapagos Islands

148

SAN-G

Guyana

149

SAN-H

Paraguay

150

SAN-I

Peru

151

SAN-K

Trinidad and Tobago

152

SAN-L

Venezuela

153

ZAN

Suriname

154

AIA

Antigua, Leeward Islands

155

ASC

Ascencion Island

156

SHB

St. Helena Island

157

BER

Bermuda Islands

158

DID

Deception Island, Antarctica

159

FOT

Nevis, St. Kitts, Leeward Islands

160

GRA

Faial, Graciosa, Pico, Sao Jorge and Terceira Islands (Azores)

161

ISG

South Georgia Island

162

LCF

Cayman Brac Island

163

ASM

Montserrat, Leeward Islands

164

NAP

Trinidad and Tobago

165

FLO

Corvo and Flores Islands (Azores)

166

PLN

Canary Islands

167

POS

Porto Santo and Madeira Islands

168

PUR

Puerto Rico and Virgin Islands

169

QUO

South Greenland

170

SAO

Sao Miguel, Santa Maria Islands (Azores)

171

SAP

East Falkland Island

172

SGM

Salvage Islands

173

TDC

Tristan da Cunha

174

ANO

Cocos Islands

175

GAA

Republic of Maldives

176

IST

Diego Garcia

177

KEG

Kerguelen Island

178

MIK

Mahe Island

179

REU

Mascarene Islands

180

AMA

American Samoa Islands

181

ATF

Iwo Jima

182

TRN

Tern Island

183

ASQ

Marcus Island

184

IBE

Efate and Erromango Islands

185

CAO

Phoenix Islands

186

CHI

Chatham Island (New Zealand)

187

GIZ

Gizo Island (New Georgia Islands)

188

EAS

Easter Island

189

GEO

New Zealand

190

GUA

Guam

191

DOB

Guadalcanal Island

192

JOH

Johnston Island

193

KUS

Caroline Islands, Fed. States of Micronesia

194

LUZ-A

Philippines (excluding Mindanao Island)

195

LUZ-B

Mindanao Island

196

MID

Midway Islands

197

OHA-M

Mean Solution (old Hawaiian)

198

OHA-A

Hawaii

199

OHA-B

Kauai

200

OHA-C

Maui

201

OHA-D

Oahu

202

PIT

Pitcairn Island

203

SAE

Espirito Santo Island

204

MVS

Viti Levu Island (Fiji Islands)

205

ENW

Marshall Islands

206

WAK

Wake Atoll

207

BUR

Bankga and Belitung Islands (Indonesia)

208

CAZ

Camp McMurdo Area, Antarctica

209

EUR-S

Iraq, Israel, Jordan, Lebanon, S. Arabia and Syria

210

GSE

Kalimantan (Indonesia)

211

HEN

Afghanistan

212

HER

former Yugoslavia

213

IND-P

Pakistan

214

PUK

Russia

215

TAN

Madagascar

216

VOI

Tunisia/Algeria

217

VOI-2

Tunisia/Algeria

218

YAC

Uruguay

219

RT90

Sweden

220

CH1903

Switzerland

221

HD72

Hungary

222

MGI

Austria

223

RD1918

Netherlands

224

KKJ

Karttakoordinaatistojärjestelmä, Finland


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