64 G12 OEM Board & Sensor Reference Manual
Table 4.14 lists the predefined ellipsoids.
Example
Select New Zealand Geodetic Datum 1949 for position computation:
$PASHS,DTM,GEO
You can view the current reference datum selection with the $PASHQ,PAR
command and checking the DTM field.
W72 WGS72 0, 0, +4.5 WGS72 World Geodetic System - 72
W84 WGS84 0, 0, 0 WGS84 World Geodetic System - 84
ZAN International 1924 -265, 120, -358 Zanderij (Surinam)
Table 4.14. Predefined Ellipsoids
Ellipsoid a (meters) 1/f f
Airy 1830 6377563.396 299.3249647 0.00334085064038
Modified Airy 6377340.189 299.3249647 0.00334085064038
Australian National 6378160.0 298.25 0.00335289186924
Bessel 1841 6377397.155 299.1528128 0.00334277318217
Clarke 1866 6378206.4 294.9786982 0.00339007530409
Clarke 1880 6378249.145 293.465 0.00340756137870
Everest (India 1830) 6377276.345 300.8017 0.00332444929666
Everest (W. Malaysia and Singapore) 6377304.063 300.8017 0.00332444929666
Geodetic Reference System 1980 6378137.0 298.257222101 0.00335281068118
Helmert 1906 6378200.0 298.30 0.00335232986926
International 1924 6378388.0 297.00 0.00336700336700
South American 1969 6378160.0 298.25 0.00335289186924
World Geodetic System 1972 (WGS-72) 6378135.0 298.26 0.00335277945417
World Geodetic System 1984 (WGS-84) 6378137.0 298.257223563 0.00335281066475
DEFAULT SETTING
DTM—WGS-84
Table 4.13. Predefined Datums and Associated Reference Ellipsoids (Continued)
Datum ID
Reference
Ellipsoid
Offset in meters
(dX,dY,dZ)
Datum Description
G12RevD.book Page 64 Tuesday, April 2, 2002 4:33 PM
To Next Page
Loading...