Western Australian Consolidated Regulations

PETROLEUM (SUBMERGED LANDS) REGULATIONS 1990 - REG 9

9 .         Application of Geocentric Datum of Australia

        (1)         Subject to regulation 11, the GDA is the prescribed Australian datum for the purposes referred to in section 10(1) of the Act.

        (2)         The reference ellipsoid for the GDA is the Geodetic Reference System 1980 ( GRS80 ) ellipsoid with a semi-major axis of 6 378 137 m exactly and an inverse flattening (l/f) of 298.257 222 101.

        (3)         The reference frame for the GDA is realised by the coordinates of the following Australian Fiducial Network geodetic stations referred to the GRS80 ellipsoid determined within the International Earth Rotation Service Terrestrial Reference Frame 1992 (ITRF92) at the epoch of 1994.0 —

No.	Name	South Latitude	East Longitude	Ellipsoidal Height
AU 012	Alice Springs	23° 40′ 12.44592″	133° 53′ 07.84757″	603.358 m
AU 013	Karratha	20° 58′ 53.17004″	117° 05′ 49.87255″	109.246 m
AU 014	Darwin	12° 50′ 37.35839″	131° 07′ 57.84838″	125.197 m
AU 015	Townsville	19° 20′ 50.42839″	146° 46′ 30.79057″	587.077 m
AU 016	Hobart	42° 48′ 16.98506″	147° 26′ 19.43548″	41.126 m
AU 017	Tidbinbilla	35° 23′ 57.15627″	148° 58′ 47.98425″	665.440 m
AU 019	Ceduna	31° 52′ 00.01664″	133° 48′ 35.37527″	144.802 m
AU 029	Yaragadee	29° 02′ 47.61687″	115° 20′ 49.10049″	241.291 m

        [Regulation 9 inserted in Gazette 15 December 2000 pp. 7216-17.]