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    SSM     CANNINGVALE 21
    Alternate names : Map ref.: CANNINGVALE BG34 4.2
    APREF/NGCA codes: Database number : 105764
    Stamp name:      CVAL21 Date established :   01/10/1977
    Physical status : destroyedPhys. status date :  01/11/1979
    Physical type :    brass plaqueHatch cover type : concrete
    Mark set in :        concreteAccess type : 2 wheel drive
    Geographical CoordinatesMGA2020 Coordinates
    Horizontal datum : GDA2020Zone :             50
    Latitude :     S 32 07 30.23269Easting (m) :   396697.484
    Longitude :  E 115 54 17.54975Northing (m) :  6445176.676
    Convergence :       -0 34 56.66
    Point scale factor : 0.99973160
    Coordinate date :       13/09/2018
    Horizontal method :   Geodetic-TerrestrialCadastral connection : Exists
    Relative horiz. accuracy :       100ppm ** Estimated relative uncertainty to adjacent marks
    Positional uncertainty (m) : 0.021 (95% Confidence level)
    Error Ellipse
    Semi-major axis (m) : 0.022
    Semi-minor axis (m) : 0.020
    Azimuth of semi-major axis (m) : 127 9 44
    ** Projection coordinates are calculated from the geographical coordinates detailed above
    Project Grid - PCG2020Perth Coastal Grid 2020
    Easting (m) :   58323.736
    Northing (m) :  344279.345
    Convergence :       0 2 48.86
    Point scale factor : 0.99999991
    Height Information
    Vertical datum :   AHD71Height type :          Orthometric
    Height (m) :         29.053Height date :          04/05/2000
    Established by :  Dept of Land Admin.State :                    Final
    Vertical method : Spirit LevellingVertical accuracy : 12rootK
    Derived GDA2020 ellipsoidal height (m) : -2.894N-Value (m) :          -31.947
    Geoid model :         AusGeoid2020
    ** Derived GDA2020 ellipsoidal height: h = H + N Interpolation :         Bi-Cubic
    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 : destroyed Date :   01/11/1979
    Phys. type :    spikeSet in : concrete
    Azimuth :           17 15 11Type :   True azimuth
    Distance (m) :    4.061Type :   Horizontal
    Height diff. (m) : -0.090Type :   Spirit Levelling
    RM to GL (m) :   None
    RM2 Phys. status : destroyed Date :   01/11/1979
    Phys. type :    spikeSet in : concrete
    Azimuth :           248 9 17Type :   True azimuth
    Distance (m) :    4.049Type :   Horizontal
    Height diff. (m) : 0.111Type :   Spirit Levelling
    RM to GL (m) :   None
    RM3 Phys. status : destroyed Date :   01/11/1979
    Phys. type :    star iron picketSet in : concrete
    Azimuth :           126 31 37Type :   True azimuth
    Distance (m) :    2.792Type :   Horizontal
    Height diff. (m) : 0.020Type :   Spirit Levelling
    RM to GL (m) :   None
    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 CoordinatesMGA2020 Coordinates
    Horizontal datum : GDA2020Zone :             50
    Latitude :     S 32 07 30.10678Easting (m) :   396698.649
    Longitude :  E 115 54 17.59570Northing (m) :  6445180.566
    Project Grid - PCG2020Perth Coastal Grid 2020
    Easting (m) :   58324.944
    Northing (m) :  344283.223
    Height Information
    Vertical datum :   AHD71
    Height (m) :         28.963
    RM2
    Geographical CoordinatesMGA2020 Coordinates
    Horizontal datum : GDA2020Zone :             50
    Latitude :     S 32 07 30.28160Easting (m) :   396693.743
    Longitude :  E 115 54 17.40637Northing (m) :  6445175.132
    Project Grid - PCG2020Perth Coastal Grid 2020
    Easting (m) :   58319.976
    Northing (m) :  344277.842
    Height Information
    Vertical datum :   AHD71
    Height (m) :         29.164
    RM3
    Geographical CoordinatesMGA2020 Coordinates
    Horizontal datum : GDA2020Zone :             50
    Latitude :     S 32 07 30.28664Easting (m) :   396699.744
    Longitude :  E 115 54 17.63534Northing (m) :  6445175.038
    Project Grid - PCG2020Perth Coastal Grid 2020
    Easting (m) :   58325.978
    Northing (m) :  344277.682
    Height Information
    Vertical datum :   AHD71
    Height (m) :         29.073
    Cadastral Connection Fieldbooks
    FB S.A.GILLIGAN 6
    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     CANNINGVALE 21
    Alternate names : Map ref.: CANNINGVALE BG34 4.2
    APREF/NGCA codes: Database number : 105764
    Stamp name:      CVAL21 Date established :   01/10/1977
    Physical status : destroyedPhys. status date :  01/11/1979
    Physical type :    brass plaqueHatch cover type : concrete
    Mark set in :        concreteAccess type : 2 wheel drive
    Geographical CoordinatesMGA94 Coordinates
    Horizontal datum : GDA94Zone :             50
    Latitude :     S 32 07 30.28096Easting (m) :   396696.484
    Longitude :  E 115 54 17.51098Northing (m) :  6445175.180
    Convergence :       -0 34 56.68
    Point scale factor : 0.99973160
    Coordinate date :       09/10/2000
    Horizontal method :   Geodetic-TerrestrialCadastral connection : Exists
    Relative horiz. accuracy :       20ppm ** Estimated relative uncertainty to adjacent marks
    Positional uncertainty (m) : 0.019 (95% Confidence level)
    Error Ellipse
    Semi-major axis (m) : 0.021
    Semi-minor axis (m) : 0.016
    Azimuth of semi-major axis (m) : 49 0 0
    ** Projection coordinates are calculated from the geographical coordinates detailed above
    Project Grid - PCG94Perth Coastal Grid 1994
    Easting (m) :   58322.718
    Northing (m) :  244277.859
    Convergence :       0 2 48.84
    Point scale factor : 0.99999991
    Height Information
    Vertical datum :   AHD71Height type :          Orthometric
    Height (m) :         29.053Height date :          04/05/2000
    Established by :  Dept of Land Admin.State :                    Final
    Vertical method : Spirit LevellingVertical accuracy : 12rootK
    Derived GDA94 ellipsoidal height (m) : -2.8N-Value (m) :          -31.853
    Geoid model :         AUSGeoid09 V1.01
    ** Derived GDA94 ellipsoidal height: h = H + N Interpolation :         Bi-Cubic
    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 : destroyed Date :   01/11/1979
    Phys. type :    spikeSet in : concrete
    Azimuth :           17 15 11Type :   True azimuth
    Distance (m) :    4.061Type :   Horizontal
    Height diff. (m) : -0.090Type :   Spirit Levelling
    RM to GL (m) :   None
    RM2 Phys. status : destroyed Date :   01/11/1979
    Phys. type :    spikeSet in : concrete
    Azimuth :           248 9 17Type :   True azimuth
    Distance (m) :    4.049Type :   Horizontal
    Height diff. (m) : 0.111Type :   Spirit Levelling
    RM to GL (m) :   None
    RM3 Phys. status : destroyed Date :   01/11/1979
    Phys. type :    star iron picketSet in : concrete
    Azimuth :           126 31 37Type :   True azimuth
    Distance (m) :    2.792Type :   Horizontal
    Height diff. (m) : 0.020Type :   Spirit Levelling
    RM to GL (m) :   None
    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 CoordinatesMGA94 Coordinates
    Horizontal datum : GDA94Zone :             50
    Latitude :     S 32 07 30.15505Easting (m) :   396697.648
    Longitude :  E 115 54 17.55693Northing (m) :  6445179.069
    Project Grid - PCG94Perth Coastal Grid 1994
    Easting (m) :   58323.926
    Northing (m) :  244281.737
    Height Information
    Vertical datum :   AHD71
    Height (m) :         28.963
    RM2
    Geographical CoordinatesMGA94 Coordinates
    Horizontal datum : GDA94Zone :             50
    Latitude :     S 32 07 30.32987Easting (m) :   396692.742
    Longitude :  E 115 54 17.36760Northing (m) :  6445173.635
    Project Grid - PCG94Perth Coastal Grid 1994
    Easting (m) :   58318.959
    Northing (m) :  244276.356
    Height Information
    Vertical datum :   AHD71
    Height (m) :         29.164
    RM3
    Geographical CoordinatesMGA94 Coordinates
    Horizontal datum : GDA94Zone :             50
    Latitude :     S 32 07 30.33491Easting (m) :   396698.743
    Longitude :  E 115 54 17.59657Northing (m) :  6445173.541
    Project Grid - PCG94Perth Coastal Grid 1994
    Easting (m) :   58324.961
    Northing (m) :  244276.196
    Height Information
    Vertical datum :   AHD71
    Height (m) :         29.073
    Cadastral Connection Fieldbooks
    FB S.A.GILLIGAN 6
    Special Notes
    No Special Notes for this mark