{"id":"F2012L00800","name":"National Measurement Act 1960 - Recognized-value standard of measurement of position 2012 (No. 1)","slug":"national-measurement-act-1960-recognized-value-standard-of-measurement-of-position-2012-no-1","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":89110,"registerId":"commonwealth-F2012L00800-current","compilationNumber":null,"startDate":"2026-04-02","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"National Measurement Act 1960 - Recognized-value standard of measurement of position 2012 (No. 1)","content":"COMMONWEALTH OF AUSTRALIA\n\nNational Measurement Act 1960 (Cth)\n\nRecognized-value standard of measurement of position 2012 (No.1)\n\nI, Dr Peter Thomas Holbrook FISK, Chief Metrologist, National Measurement Institute, make the following determination under paragraph 8A(1)(a) and revocation under subsection 8A(2) of the National Measurement Act 1960 (Cth) (the Act).\n\nDated 4 April 2012\n\nPeter Fisk.\n\nDr P T H FISK, Chief Metrologist\n\n1. Revocation and Determination\n 1. Under subsection 8A(2) of the Act, the determination Recognized-value standard of measurement of position made by the former National Standards Commission and dated 14 January 1998 is revoked.\n 2. Under paragraph 8A(1)(a) of the Act, the positions of the Australian Fiducial Network locations listed below and in the stated reference ellipsoid and reference frame, are recognized-value standards of measurement of the physical quantity position:\n\n- Reference ellipsoid – Geodetic Reference System 1980 (GRS80) ellipsoid with a semi-major axis (a) of 6 378 137 metres exactly and an inverse flattening (1/f) of 298.257 222 101.\n\n- Reference Frame – The Geocentric Datum of Australia 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 Reference Frame 1992 (ITRF1992) at the epoch 1994.0:\n\n```html\n

Location (Identifier)

East Longitude

South Latitude

Elevation

(from ellipsoid)

Adelaide (ADE1)

138°

38’

50.43453”

34°

43’

44.41404”

38.1293 m

Alice Springs (ALIC)

133°

53’

7.84785”

23°

40’

12.44602”

603.3466 m

Burnie (BUR1)

145°

54’

53.4412”

41°

3’

0.24611”

3.1531 m

Ceduna (CEDU)

133°

48’

35.37558”

31°

52’

0.01657”

144.8196 m

Cocos Island (COCO)

96°

50’

2.27360”

12°

11’

18.06739”

-35.2309 m

Darwin (DARW)

131°

7’

57.8479”

12°

50’

37.35864”

125.2124 m

Hobart (HOB2)

147°

26’

19.43574”

42°

48’

16.98538”

41.1389 m

Karratha (KARR)

117°

5’

49.87277”

20°

58’

53.16983”

109.2269 m

Macquarie Island (MAC1)

158°

56’

8.99643”

54°

29’

58.32845”

-6.7231 m

Melbourne (MOBS)

144°

58’

31.20646”

37°

49’

45.89904”

40.6710 m

New Norcia (NNOR)

116°

11’

33.76803”

31°

2’

55.46714”

234.8939 m

Parkes (PARK)

148°

15’

52.58905”

32°

59’

55.58175”

397.4436 m

Perth (PERT)

115°

53’

6.88639”

31°

48’

7.09686”

12.7697 m

Mount Stromlo (STR1)

149°

0’

36.17971”

35°

18’

55.93958”

800.0226 m

Mount Stromlo (STR2)

149°

0’

36.54756”

35°

18’

58.1991”

802.5632 m

Sydney (SYDN)

151°

9’

1.35691”

33°

46’

51.18426”

85.6781 m

Tidbinbilla (TIDB)

148°

58’

47.98444”

35°

23’

57.15619”

665.4232 m

Townsville (TOW2)

147°

3’

20.46531”

19°

16’

9.42824”

88.2292 m

Christmas Island (XMIS)

105°

41’

18.58058”

10°

26’

59.89868”

261.5892 m

Yarragadee (YAR1)

115°

20’

49.10002”

29°

2’

47.61682”

241.3533 m

Yarragadee (YARR)

115°

20’

49.08938”

29°

2’

47.74264”

241.4231 m

\n```\n\n2. Name of determination\n\nThis determination is the Recognized-value standard of measurement of position 2012 (No.1).\n\n3. Commencement\n\nThis determination commences on the day after it is registered on the Federal Register of Legislative Instruments.\n\n4. National Measurement Institute\n\nThe National Measurement Institute is a Division of the Department of Industry, Innovation, Science, Research and Tertiary Education, established under section 17 of the Act, and located in Bradfield Road, West Lindfield, in the State of New South Wales.","sortOrder":0}],"analysis":{"kimi_summary":{"_metrics":{"model":"kimi-k2.5","source":"moonshot-realtime","completionTokens":2450},"content_quality":"ok","complexity_score":3,"scope_assessment":{"changed":false,"description":"The determination updates the technical specifications for recognized-value standards of position but does not expand beyond the established scope of the National Measurement Act 1960. It replaces the 1998 determination with revised coordinates and reference frame parameters without introducing new categories of measurement or regulatory obligations."},"complexity_factors":["Technical geodetic terminology including reference ellipsoids and terrestrial reference frames","Tabular prescription of 21 coordinate sets with precision to 0.00001 arcseconds","Reference to international scientific standards (ITRF1992, GRS80)","Limited cross-referencing to parent Act (only sections 8A(1)(a) and 8A(2))"],"plain_english_summary":"This determination declares 21 locations in the Australian Fiducial Network as the legal, official reference points for position in Australia, providing authoritative coordinates (on the GRS80 ellipsoid in ITRF1992 at epoch 1994.0). \n\nIt affects surveyors, mappers, industry and emergency services that rely on precise positioning, replacing the 1998 reference to align Australia’s positioning framework with modern satellite technology and tectonic movement."},"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":true,"description":"This instrument explicitly revokes the 1998 Recognized-value standard (subsection 8A(2)) and replaces it by re‑specifying the recognized-value standards of position under paragraph 8A(1)(a): it fixes the reference ellipsoid (GRS80 with stated parameters), the reference frame (Geocentric Datum of Australia realised via coordinates in ITRF1992 at epoch 1994.0) and a defined list of Australian Fiducial Network stations. The legal scope therefore shifts from the earlier specification to the updated ellipsoid/frame/station set and takes effect on registration."},"complexity_factors":["Legal formalities: revocation of a prior determination (subsection 8A(2)) and issuance under paragraph 8A(1)(a).","Technical geodetic content: specification of the GRS80 ellipsoid with exact parameters and realisation in ITRF1992 at epoch 1994.0.","Volume of operational data: a large table listing many Australian Fiducial Network station coordinates and ellipsoidal elevations.","Temporal precision: reliance on a fixed epoch (1994.0) which can create maintenance and transformation requirements for users.","Commencement conditionality: instrument commences the day after registration on the Federal Register of Legislative Instruments."],"plain_english_summary":"This determination, made by the Chief Metrologist under paragraph 8A(1)(a) and revoking a 1998 determination under subsection 8A(2), declares a set of Australian Fiducial Network coordinates — referenced to the GRS80 ellipsoid and realised in ITRF1992 at epoch 1994.0 — to be the recognized-value standards for the physical quantity “position” under the National Measurement Act 1960. It takes effect the day after registration and names the National Measurement Institute (a Division of the Department) as the administering body."}},"importantCases":[],"_links":{"self":"/api/acts/national-measurement-act-1960-recognized-value-standard-of-measurement-of-position-2012-no-1","history":"/api/acts/national-measurement-act-1960-recognized-value-standard-of-measurement-of-position-2012-no-1/history","analysis":"/api/acts/national-measurement-act-1960-recognized-value-standard-of-measurement-of-position-2012-no-1/analysis","conflicts":"/api/acts/national-measurement-act-1960-recognized-value-standard-of-measurement-of-position-2012-no-1/conflicts","importantCases":"/api/acts/national-measurement-act-1960-recognized-value-standard-of-measurement-of-position-2012-no-1/important-cases","documents":"/api/acts/national-measurement-act-1960-recognized-value-standard-of-measurement-of-position-2012-no-1/documents"}}