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      Mark Details (GOLA last updated on 19-May-2025)
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    SSM     ASHTON 64
    Alternate names : Map ref.: ASHTON SD52-13
    APREF/NGCA codes: 27WJDatabase number : 15029064
    Stamp name:      ATN64 Date established :   14/10/2012
    Physical status : established (Landgate) Phys. status date :  09/12/2016
    Physical type :    brass plaqueHatch cover type : none
    Mark set in :        concreteAccess type : 4 wheel drive
    Geographical CoordinatesMGA2020 Coordinates
    Horizontal datum : GDA2020Zone :             52
    Latitude :     S 15 17 17.13788Easting (m) :   199041.048
    Longitude :  E 126 11 51.92413Northing (m) :  8307867.467
    Convergence :       -0 44 21.96
    Point scale factor : 1.00072038
    MGA2020 Overlap Coordinates
    Zone :             51
    Easting (m) :   843472.703
    Northing (m) :  8307279.977
    Convergence :       0 50 38.37
    Point scale factor : 1.00105935
    Coordinate date :       18/06/2019
    Horizontal method :   GNSS Survey NetworkCadastral connection : No
    Relative horiz. accuracy :       5ppm ** Estimated relative uncertainty to adjacent marks
    Positional uncertainty (m) : 0.018 (95% Confidence level)
    Error Ellipse
    Semi-major axis (m) : 0.018
    Semi-minor axis (m) : 0.018
    Azimuth of semi-major axis (m) : 64 53 37
    Height Information
    Vertical datum :   AHD71Height type :          Orthometric
    Height (m) :         393.18Height date :          10/01/2013
    Established by :  LandgateState :                    Final
    Vertical method : GNSS + AusGeoid09 V1.01Vertical accuracy : 0.1m
    Derived GDA2020 ellipsoidal height (m) : 428.967N-Value (m) :          35.787
    Geoid model :         AusGeoid2020
    ** Derived GDA2020 ellipsoidal height: h = H + N Interpolation :         Bi-Cubic
    Vertical datum :   GDA2020Height type :          Ellipsoidal
    Height (m) :         428.848Height date :          18/06/2019
    Established by :  LandgateState :                    Final
    Vertical method : GNSS Survey NetworkVertical accuracy : 0.033m
    Mark to hatch cover :  
    Mark to ground level : 
    RM Info** Warning: RM azimuths and coordinates are unverified
    ** Azimuth, distance and height difference are relative to main mark
    RM1 Phys. status : established (Landgate) Date :   14/10/2012
    Phys. type :    Set in :
    Azimuth :           43 0 0Type :   Magnetic bearing
    Distance (m) :    2.840Type :   Horizontal
    Height diff. (m) : 0.103Type :   Spirit Levelling
    RM to GL (m) :   0.000
    RM2 Phys. status : established (Landgate) Date :   14/10/2012
    Phys. type :    Set in :
    Azimuth :           166 0 0Type :   Magnetic bearing
    Distance (m) :    3.091Type :   Horizontal
    Height diff. (m) : 0.036Type :   Spirit Levelling
    RM to GL (m) :   0.000
    RM3 Phys. status : established (Landgate) Date :   14/10/2012
    Phys. type :    Set in :
    Azimuth :           285 0 0Type :   Magnetic bearing
    Distance (m) :    3.070Type :   Horizontal
    Height diff. (m) : -0.155Type :   Spirit Levelling
    RM to GL (m) :   0.000
    RM Position Information** Warning: RM coordinates should be verified prior to use
    ** Coordinates are calculated from reference observations
    ** Coordinate accuracies commensurate with related observations
    RM1
    Geographical Coordinates:No current GDA2020 coordinates exist
    Height Information
    Vertical datum :   
    Height (m) :         No height available
    RM2
    Geographical Coordinates:No current GDA2020 coordinates exist
    Height Information
    Vertical datum :   
    Height (m) :         No height available
    RM3
    Geographical Coordinates:No current GDA2020 coordinates exist
    Height Information
    Vertical datum :   
    Height (m) :         No height available
    Cadastral Connection Fieldbooks
    No Fieldbooks for this mark
    Special Notes
    No Special Notes for this mark
    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     ASHTON 64
    Alternate names : Map ref.: ASHTON SD52-13
    APREF/NGCA codes: 27WJDatabase number : 15029064
    Stamp name:      ATN64 Date established :   14/10/2012
    Physical status : established (Landgate) Phys. status date :  09/12/2016
    Physical type :    brass plaqueHatch cover type : none
    Mark set in :        concreteAccess type : 4 wheel drive
    Geographical CoordinatesMGA94 Coordinates
    Horizontal datum : GDA94Zone :             52
    Latitude :     S 15 17 17.18745Easting (m) :   199040.110
    Longitude :  E 126 11 51.89207Northing (m) :  8307865.931
    Convergence :       -0 44 21.97
    Point scale factor : 1.00072039
    MGA94 Overlap Coordinates
    Zone :             51
    Easting (m) :   843471.723
    Northing (m) :  8307278.467
    Convergence :       0 50 38.36
    Point scale factor : 1.00105934
    Coordinate date :       07/01/2013
    Horizontal method :   Global Position SystemCadastral connection : No
    Relative horiz. accuracy :       10ppm ** Estimated relative uncertainty to adjacent marks
    Positional uncertainty (m) : 0.036 (95% Confidence level)
    Error Ellipse
    Semi-major axis (m) : 0.040
    Semi-minor axis (m) : 0.032
    Azimuth of semi-major axis (m) : 77 0 0
    Height Information
    Vertical datum :   AHD71Height type :          Orthometric
    Height (m) :         393.18Height date :          10/01/2013
    Established by :  LandgateState :                    Final
    Vertical method : GNSS + AusGeoid09 V1.01Vertical accuracy : 0.1m
    Derived GDA94 ellipsoidal height (m) : 429.005N-Value (m) :          35.825
    Geoid model :         AUSGeoid09 V1.01
    ** Derived GDA94 ellipsoidal height: h = H + N Interpolation :         Bi-Cubic
    Vertical datum :   GDA2020Height type :          Ellipsoidal
    Height (m) :         428.848Height date :          18/06/2019
    Established by :  LandgateState :                    Final
    Vertical method : GNSS Survey NetworkVertical accuracy : 0.033m
    Mark to hatch cover :  
    Mark to ground level : 
    RM Info** Warning: RM azimuths and coordinates are unverified
    ** Azimuth, distance and height difference are relative to main mark
    RM1 Phys. status : established (Landgate) Date :   14/10/2012
    Phys. type :    Set in :
    Azimuth :           43 0 0Type :   Magnetic bearing
    Distance (m) :    2.840Type :   Horizontal
    Height diff. (m) : 0.103Type :   Spirit Levelling
    RM to GL (m) :   0.000
    RM2 Phys. status : established (Landgate) Date :   14/10/2012
    Phys. type :    Set in :
    Azimuth :           166 0 0Type :   Magnetic bearing
    Distance (m) :    3.091Type :   Horizontal
    Height diff. (m) : 0.036Type :   Spirit Levelling
    RM to GL (m) :   0.000
    RM3 Phys. status : established (Landgate) Date :   14/10/2012
    Phys. type :    Set in :
    Azimuth :           285 0 0Type :   Magnetic bearing
    Distance (m) :    3.070Type :   Horizontal
    Height diff. (m) : -0.155Type :   Spirit Levelling
    RM to GL (m) :   0.000
    RM Position Information** Warning: RM coordinates should be verified prior to use
    ** Coordinates are calculated from reference observations
    ** Coordinate accuracies commensurate with related observations
    RM1
    Geographical Coordinates:No current GDA94 coordinates exist
    Height Information
    Vertical datum :   
    Height (m) :         No height available
    RM2
    Geographical Coordinates:No current GDA94 coordinates exist
    Height Information
    Vertical datum :   
    Height (m) :         No height available
    RM3
    Geographical Coordinates:No current GDA94 coordinates exist
    Height Information
    Vertical datum :   
    Height (m) :         No height available
    Cadastral Connection Fieldbooks
    No Fieldbooks for this mark
    Special Notes
    No Special Notes for this mark