Geodesy | |
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Fundamentals | |
Geodesy · Geodynamics Geomatics · Cartography |
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Concepts | |
Datum · Distance · Geoid Figure of the Earth Geodetic system Geog. coord. system Hor. pos. representation Map projection Reference ellipsoid Satellite geodesy Spatial reference system |
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GNSS · GPS · ... | |
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ED50 · ETRS89 · NAD83 NAVD88 · SAD69 · SRID UTM · WGS84 · ... |
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History | |
History of geodesy NAVD29 · ... |
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Jordan Transverse Mercator (JTM) is a grid system created by the Royal Jordan Geographic Center (RJGC). This system is based on 6° belts with a Central Meridian of 37° East and a Scale Factor at Origin (mo) = 0.9998. The JTM is based on the International Hayford Ellipsoid 1924. No transformation parameters are presently offered by the government.[1] However,Prof. Steven H. Savage of Arizona State University figured out that the JTM has a False Easting of 500 km, a False Northing of –3,000 km, and the three-parameter transformation to WGS84 is: ΔX = –86 meters, ΔY = –98 meters, and ΔZ = –119 meters.
Prof. Savage also offers software, ReprojectME!, which will convert coordinates between JTM and other systems. (See http://gaialab.asu.edu/Jordan/# for more information.)