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    SSM     BAYSWATER 18A
    Alternate names : Map ref.: BAYSWATER BG34 4.6
    APREF/NGCA codes: Database number : 103771
    Stamp name:      BAYS18A Date established :   01/09/1974
    Physical status : located (BCE Surveying) Phys. status date :  20/05/2022
    Physical type :    brass plaqueHatch cover type : concrete
    Mark set in :        concreteAccess type : 2 wheel drive
    Geographical CoordinatesMGA2020 Coordinates
    Horizontal datum : GDA2020Zone :             50
    Latitude :     S 31 54 47.04771Easting (m) :   397322.783
    Longitude :  E 115 54 50.42609Northing (m) :  6468685.468
    Convergence :       -0 34 26.91
    Point scale factor : 0.99973002
    Coordinate date :       13/08/2018
    Horizontal method :   Geodetic-TerrestrialCadastral connection : No
    Relative horiz. accuracy :       30ppm ** Estimated relative uncertainty to adjacent marks
    Positional uncertainty (m) : 0.026 (95% Confidence level)
    Error Ellipse
    Semi-major axis (m) : 0.028
    Semi-minor axis (m) : 0.024
    Azimuth of semi-major axis (m) : 5 4 16
    ** Projection coordinates are calculated from the geographical coordinates detailed above
    Project Grid - PCG2020Perth Coastal Grid 2020
    Easting (m) :   59206.678
    Northing (m) :  367786.208
    Convergence :       0 3 5.25
    Point scale factor : 1.00000010
    Height Information
    Vertical datum :   AHD71Height type :          Orthometric
    Height (m) :         23.413Height date :          04/05/2000
    Established by :  Dept of Land Admin.State :                    Final
    Vertical method : Spirit LevellingVertical accuracy : 12rootK
    Derived GDA2020 ellipsoidal height (m) : -8.725N-Value (m) :          -32.138
    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
    RM2 Phys. status : not located Date :   01/10/1985
    Phys. type :    spikeSet in : bitumen
    Azimuth :           294 57 20Type :   True azimuth
    Distance (m) :    2.788Type :   Horizontal
    Height diff. (m) : NoneType :   
    RM to GL (m) :   0.000
    RM4 Phys. status : established Date :   01/04/1971
    Phys. type :    spikeSet in : concrete
    Azimuth :           4 7 20Type :   True azimuth
    Distance (m) :    6.198Type :   Horizontal
    Height diff. (m) : NoneType :   
    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
    RM2
    Geographical CoordinatesMGA2020 Coordinates
    Horizontal datum : GDA2020Zone :             50
    Latitude :     S 31 54 47.00952Easting (m) :   397320.244
    Longitude :  E 115 54 50.32988Northing (m) :  6468686.619
    Project Grid - PCG2020Perth Coastal Grid 2020
    Easting (m) :   59204.152
    Northing (m) :  367787.387
    Height Information
    Vertical datum :   
    Height (m) :         No height available
    RM4
    Geographical CoordinatesMGA2020 Coordinates
    Horizontal datum : GDA2020Zone :             50
    Latitude :     S 31 54 46.84701Easting (m) :   397323.167
    Longitude :  E 115 54 50.44305Northing (m) :  6468691.653
    Project Grid - PCG2020Perth Coastal Grid 2020
    Easting (m) :   59207.129
    Northing (m) :  367792.390
    Height Information
    Vertical datum :   
    Height (m) :         No height available
    Cadastral Connection Fieldbooks
    No Fieldbooks for this mark
    Special Notes
    Unknown Datebays3 rm1,bays18a rm1,bays18a,rm4 online
    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     BAYSWATER 18A
    Alternate names : Map ref.: BAYSWATER BG34 4.6
    APREF/NGCA codes: Database number : 103771
    Stamp name:      BAYS18A Date established :   01/09/1974
    Physical status : located (BCE Surveying) Phys. status date :  20/05/2022
    Physical type :    brass plaqueHatch cover type : concrete
    Mark set in :        concreteAccess type : 2 wheel drive
    Geographical CoordinatesMGA94 Coordinates
    Horizontal datum : GDA94Zone :             50
    Latitude :     S 31 54 47.09676Easting (m) :   397321.789
    Longitude :  E 115 54 50.38767Northing (m) :  6468683.948
    Convergence :       -0 34 26.93
    Point scale factor : 0.99973002
    Coordinate date :       09/10/2000
    Horizontal method :   Geodetic-TerrestrialCadastral connection : No
    Relative horiz. accuracy :       20ppm ** Estimated relative uncertainty to adjacent marks
    Positional uncertainty (m) : 0.02 (95% Confidence level)
    Error Ellipse
    Semi-major axis (m) : 0.022
    Semi-minor axis (m) : 0.018
    Azimuth of semi-major axis (m) : 177 0 0
    ** Projection coordinates are calculated from the geographical coordinates detailed above
    Project Grid - PCG94Perth Coastal Grid 1994
    Easting (m) :   59205.668
    Northing (m) :  267784.698
    Convergence :       0 3 5.23
    Point scale factor : 1.00000010
    Height Information
    Vertical datum :   AHD71Height type :          Orthometric
    Height (m) :         23.413Height date :          04/05/2000
    Established by :  Dept of Land Admin.State :                    Final
    Vertical method : Spirit LevellingVertical accuracy : 12rootK
    Derived GDA94 ellipsoidal height (m) : -8.668N-Value (m) :          -32.081
    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
    RM2 Phys. status : not located Date :   01/10/1985
    Phys. type :    spikeSet in : bitumen
    Azimuth :           294 57 20Type :   True azimuth
    Distance (m) :    2.788Type :   Horizontal
    Height diff. (m) : NoneType :   
    RM to GL (m) :   0.000
    RM4 Phys. status : established Date :   01/04/1971
    Phys. type :    spikeSet in : concrete
    Azimuth :           4 7 20Type :   True azimuth
    Distance (m) :    6.198Type :   Horizontal
    Height diff. (m) : NoneType :   
    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
    RM2
    Geographical CoordinatesMGA94 Coordinates
    Horizontal datum : GDA94Zone :             50
    Latitude :     S 31 54 47.05857Easting (m) :   397319.250
    Longitude :  E 115 54 50.29146Northing (m) :  6468685.098
    Project Grid - PCG94Perth Coastal Grid 1994
    Easting (m) :   59203.141
    Northing (m) :  267785.877
    Height Information
    Vertical datum :   
    Height (m) :         No height available
    RM4
    Geographical CoordinatesMGA94 Coordinates
    Horizontal datum : GDA94Zone :             50
    Latitude :     S 31 54 46.89606Easting (m) :   397322.173
    Longitude :  E 115 54 50.40463Northing (m) :  6468690.132
    Project Grid - PCG94Perth Coastal Grid 1994
    Easting (m) :   59206.119
    Northing (m) :  267790.880
    Height Information
    Vertical datum :   
    Height (m) :         No height available
    Cadastral Connection Fieldbooks
    No Fieldbooks for this mark
    Special Notes
    Unknown Datebays3 rm1,bays18a rm1,bays18a,rm4 online