EPSG:4706 — Egypt Gulf of Suez S-650 TL
Egypt Gulf of Suez S-650 TL (EPSG:4706) — a Geographic (degrees) system on the helmert datum, used in Egypt. Parameters, proj4, WKT, accuracy ±0.1 m, plus a free convert…
At a glance
- EPSG
- 4706
- Name
- Egypt Gulf of Suez S-650 TL
- Kind
- Geographic (degrees)
- Family
- Geographic (longitude/latitude)
- Ellipsoid
- helmert
- Accuracy
- ±0.1 m (vs PROJ)
- Countries
- Egypt
Area of use
| West | 32.34° |
| South | 27.19° |
| East | 34.27° |
| North | 30.01° |
Projection parameters
| Projection | longlat |
| Ellipsoid | helmert |
| Helmert shift to WGS84 | -146.21,112.63,4.05,0,0,0,0 |
+proj=longlat +ellps=helmert +no_defs +towgs84=-146.21,112.63,4.05,0,0,0,0
GEOGCS["GCS_Egypt Gulf of Suez S-650 TL",DATUM["D_Helmert_1906",SPHEROID["Helmert_1906",6378200,298.3],TOWGS84[-146.21,112.63,4.05,0,0,0,0]],PRIMEM["Greenwich",0],UNIT["Degree",0.0174532925199433],AUTHORITY["EPSG","4706"]]
Sample conversion
Centre of the area of use: WGS84 33.30500, 28.60000 → EPSG:4706 33.3032168, 28.5996856
Values are within ±0.1 m at the test point.
About the Geographic (longitude/latitude) family
Egypt Gulf of Suez S-650 TL is a geographic coordinate system: positions are longitude and latitude in degrees on its reference ellipsoid, not metres on a plane. It is the datum layer that projected grids (UTM, national belts) are built upon.
Because it is unprojected, distances and areas cannot be measured directly from its degrees — convert to a metric projected system (or use a geodesic calculation) first. This page's converter does exactly that.
Related systems
- EPSG:3355 — Egypt Gulf of Suez S-650 TL / Red Belt
- EPSG:4199 — Egypt 1930
- EPSG:4229 — Egypt 1907
- EPSG:22991 — Egypt 1907 / Blue Belt
- EPSG:22992 — Egypt 1907 / Red Belt
- EPSG:22993 — Egypt 1907 / Purple Belt
- EPSG:32635 — WGS 84 / UTM zone 35N
- EPSG:32636 — WGS 84 / UTM zone 36N
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FAQ
- What is EPSG:4706?
- It is the coordinate system “Egypt Gulf of Suez S-650 TL”, a Geographic (degrees) system in the Geographic (longitude/latitude) family, identified worldwide by the code EPSG:4706.
- What datum does it use, and how accurate is it?
- It is based on the helmert ellipsoid and it carries Helmert parameters to WGS84. The residual at the test point is about ±0.1 m versus PROJ; for centimetre work use a geodetic adjustment service.
- Where is this system used?
- It is used in Egypt. This page shows its area of use as a coordinate rectangle above.
- How do I convert EPSG:4706 to WGS84?
- Use the free coordinate converter above (preloaded with this system) to convert to WGS84, UTM, or any other system, within a ±0.1 m residual.
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