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      Mark Details (GOLA last updated on 16-Mar-2026)
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    SSM     YOKINE 148
    Alternate names : STIG , CORS AUM000100 Map ref.: YOKINE BG34 3.7
    APREF/NGCA codes: STIG,53WPDatabase number : 14258880
    Stamp name:      Date established :   24/08/2010
    Physical status : established (JBA Surveys) Phys. status date :  15/05/2010
    Physical type :    stainless steel pillar plateHatch cover type : concrete
    Mark set in :        pillarAccess type : 2 wheel drive
    Geographical CoordinatesMGA2020 Coordinates
    Horizontal datum : GDA2020Zone :             50
    Latitude :     S 31 51 58.29354Easting (m) :   388313.333
    Longitude :  E 115 49 09.55390Northing (m) :  6473788.109
    Convergence :       -0 37 24.20
    Point scale factor : 0.99975384
    Coordinate date :       25/06/2024
    Horizontal method :   Geoscience Australia NGCACadastral connection : No
    Relative horiz. accuracy :       30ppm ** Estimated relative uncertainty to adjacent marks
    Positional uncertainty (m) : 0.015 (95% Confidence level)
    Error Ellipse
    Semi-major axis (m) : 0.015
    Semi-minor axis (m) : 0.015
    Azimuth of semi-major axis (deg) : 38 24 31
    ** Projection coordinates are calculated from the geographical coordinates detailed above
    Project Grid - PCG2020Perth Coastal Grid 2020
    Easting (m) :   50251.135
    Northing (m) :  372988.192
    Convergence :       0 0 5.04
    Point scale factor : 0.99999906
    Height Information
    Vertical datum :   AHD71Height type :          Orthometric
    Height (m) :         32.801Height date :          14/09/2010
    Established by :  JBA SurveysState :                    Final
    Vertical method : Spirit LevellingVertical accuracy : 12rootK
    Derived GDA2020 ellipsoidal height (m) : 0.008N-Value (m) :          -32.793
    Geoid model :         AusGeoid2020
    ** Derived GDA2020 ellipsoidal height: h = H + N Interpolation :         Bi-Cubic
    Vertical datum :   GDA2020Height type :          Ellipsoidal
    Height (m) :         -0.002Height date :          25/06/2024
    Established by :  LandgateState :                    Final
    Vertical method : GNSS Survey NetworkVertical accuracy : 0.024m
    Mark to hatch cover :  
    Mark to ground level : 
    RM Info
    No RMs for this mark
    Cadastral Connection Fieldbooks
    No Fieldbooks for this mark
    Special Notes
    16/08/2017Base station for RTK Netwest. For more information visit www.rtknetwest.com.au
    25/02/2013The AuScope station's GDA94 coordinates have a Certificate of Verification of a Reference Standard of a Position-Measurement in Accordance with Regulation 13 of the National Measurement Regulations 1999 in Accordance with the National Measurement Act 1960. Geoscience Australia - National Geospatial Reference Systems was the verifying authority.
    ATRF 2014
    GDA2020 coordinates are equivalent to ATRF2014@2020.0. ATRF2014 coordinates can be determined by application of the Australian Plate Motion Model. For general and technical information on GDA2020 see http://www.icsm.gov.au/gda2020 and ATRF2014 see http://www.icsm.gov.au/australian-terrestrial-reference-frame.
    View the graphic summary
    SSM     YOKINE 148
    Alternate names : STIG , CORS AUM000100 Map ref.: YOKINE BG34 3.7
    APREF/NGCA codes: STIG,53WPDatabase number : 14258880
    Stamp name:      Date established :   24/08/2010
    Physical status : established (JBA Surveys) Phys. status date :  15/05/2010
    Physical type :    stainless steel pillar plateHatch cover type : concrete
    Mark set in :        pillarAccess type : 2 wheel drive
    Geographical CoordinatesMGA94 Coordinates
    Horizontal datum : GDA94Zone :             50
    Latitude :     S 31 51 58.34156Easting (m) :   388312.328
    Longitude :  E 115 49 09.51501Northing (m) :  6473786.619
    Convergence :       -0 37 24.22
    Point scale factor : 0.99975384
    Coordinate date :       19/04/2011
    Horizontal method :   Global Position SystemCadastral connection : No
    Relative horiz. accuracy :       5mm ** Estimated relative uncertainty to adjacent marks
    Positional uncertainty (m) : 0.005 (95% Confidence level)
    Error Ellipse
    Semi-major axis (m) : 0.005
    Semi-minor axis (m) : 0.005
    Azimuth of semi-major axis (deg) : 90 0 0
    ** Projection coordinates are calculated from the geographical coordinates detailed above
    Project Grid - PCG94Perth Coastal Grid 1994
    Easting (m) :   50250.113
    Northing (m) :  272986.713
    Convergence :       0 0 5.02
    Point scale factor : 0.99999906
    Height Information
    Vertical datum :   AHD71Height type :          Orthometric
    Height (m) :         32.801Height date :          14/09/2010
    Established by :  JBA SurveysState :                    Final
    Vertical method : Spirit LevellingVertical accuracy : 12rootK
    Derived GDA94 ellipsoidal height (m) : 0.072N-Value (m) :          -32.729
    Geoid model :         AUSGeoid09 V1.01
    ** Derived GDA94 ellipsoidal height: h = H + N Interpolation :         Bi-Cubic
    Vertical datum :   GDA2020Height type :          Ellipsoidal
    Height (m) :         -0.002Height date :          25/06/2024
    Established by :  LandgateState :                    Final
    Vertical method : GNSS Survey NetworkVertical accuracy : 0.024m
    Mark to hatch cover :  
    Mark to ground level : 
    RM Info
    No RMs for this mark
    Cadastral Connection Fieldbooks
    No Fieldbooks for this mark
    Special Notes
    16/08/2017Base station for RTK Netwest. For more information visit www.rtknetwest.com.au
    25/02/2013The AuScope station's GDA94 coordinates have a Certificate of Verification of a Reference Standard of a Position-Measurement in Accordance with Regulation 13 of the National Measurement Regulations 1999 in Accordance with the National Measurement Act 1960. Geoscience Australia - National Geospatial Reference Systems was the verifying authority.