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    SSM     BAYSWATER 6
    Alternate names : Map ref.: BAYSWATER BG34 4.6
    APREF/NGCA codes: Database number : 103175
    Stamp name:      BAYS6 Date established :   01/04/1971
    Physical status : located (BCE Surveying) Phys. status date :  27/05/2022
    Physical type :    brass plaqueHatch cover type : metal
    Mark set in :        concreteAccess type : 2 wheel drive
    Geographical CoordinatesMGA2020 Coordinates
    Horizontal datum : GDA2020Zone :             50
    Latitude :     S 31 54 12.21604Easting (m) :   399508.508
    Longitude :  E 115 56 14.04663Northing (m) :  6469779.760
    Convergence :       -0 33 42.14
    Point scale factor : 0.99972454
    Coordinate date :       26/06/2023
    Horizontal method :   GNSS Survey NetworkCadastral connection : Exists
    Relative horiz. accuracy :       20ppm ** 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 (deg) : 177 6 13
    ** Projection coordinates are calculated from the geographical coordinates detailed above
    Project Grid - PCG2020Perth Coastal Grid 2020
    Easting (m) :   61404.820
    Northing (m) :  368856.865
    Convergence :       0 3 49.39
    Point scale factor : 1.00000066
    Height Information
    Vertical datum :   AHD71Height type :          Orthometric
    Height (m) :         28.267Height date :          04/05/2000
    Established by :  Dept of Land Admin.State :                    Final
    Vertical method : Spirit LevellingVertical accuracy : 12rootK
    Derived GDA2020 ellipsoidal height (m) : -3.667N-Value (m) :          -31.934
    Geoid model :         AusGeoid2020
    ** Derived GDA2020 ellipsoidal height: h = H + N Interpolation :         Bi-Cubic
    Vertical datum :   GDA2020Height type :          Ellipsoidal
    Height (m) :         -3.700Height date :          26/06/2023
    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 : destroyed (JBA Surveys) Date :   01/11/2004
    Phys. type :    spikeSet in : concrete
    Azimuth :           102 52 41Type :   True azimuth
    Distance (m) :    4.150Type :   Horizontal
    Height diff. (m) : -0.064Type :   Spirit Levelling
    RM to GL (m) :   None
    RM2 Phys. status : located (BCE Surveying) Date :   27/05/2022
    Phys. type :    spikeSet in : concrete
    Azimuth :           192 8 41Type :   True azimuth
    Distance (m) :    2.130Type :   Horizontal
    Height diff. (m) : -0.297Type :   Spirit Levelling
    RM to GL (m) :   0.250
    RM3 Phys. status : destroyed (JBA Surveys) Date :   01/11/2004
    Phys. type :    spikeSet in : concrete
    Azimuth :           272 41 50Type :   True azimuth
    Distance (m) :    3.590Type :   Horizontal
    Height diff. (m) : -0.326Type :   Spirit Levelling
    RM to GL (m) :   None
    RM5 Phys. status : located (BCE Surveying) Date :   27/05/2022
    Phys. type :    spikeSet in : concrete
    Azimuth :           79 50 6Type :   True azimuth
    Distance (m) :    3.124Type :   Horizontal
    Height diff. (m) : -0.172Type :   Spirit Levelling
    RM to GL (m) :   0.300
    RM6 Phys. status : located (BCE Surveying) Date :   27/05/2022
    Phys. type :    spikeSet in : concrete
    Azimuth :           302 51 21Type :   True azimuth
    Distance (m) :    3.168Type :   Horizontal
    Height diff. (m) : -0.207Type :   Spirit Levelling
    RM to GL (m) :   0.300
    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 31 54 12.24607Easting (m) :   399512.561
    Longitude :  E 115 56 14.20060Northing (m) :  6469778.875
    Project Grid - PCG2020Perth Coastal Grid 2020
    Easting (m) :   61408.864
    Northing (m) :  368855.936
    Height Information
    Vertical datum :   AHD71
    Height (m) :         28.203
    RM2
    Geographical CoordinatesMGA2020 Coordinates
    Horizontal datum : GDA2020Zone :             50
    Latitude :     S 31 54 12.28364Easting (m) :   399508.080
    Longitude :  E 115 56 14.02958Northing (m) :  6469777.674
    Project Grid - PCG2020Perth Coastal Grid 2020
    Easting (m) :   61404.369
    Northing (m) :  368854.784
    Height Information
    Vertical datum :   AHD71
    Height (m) :         27.970
    RM3
    Geographical CoordinatesMGA2020 Coordinates
    Horizontal datum : GDA2020Zone :             50
    Latitude :     S 31 54 12.21056Easting (m) :   399504.921
    Longitude :  E 115 56 13.91015Northing (m) :  6469779.894
    Project Grid - PCG2020Perth Coastal Grid 2020
    Easting (m) :   61401.234
    Northing (m) :  368857.038
    Height Information
    Vertical datum :   AHD71
    Height (m) :         27.941
    RM5
    Geographical CoordinatesMGA2020 Coordinates
    Horizontal datum : GDA2020Zone :             50
    Latitude :     S 31 54 12.19814Easting (m) :   399511.576
    Longitude :  E 115 56 14.16366Northing (m) :  6469780.341
    Project Grid - PCG2020Perth Coastal Grid 2020
    Easting (m) :   61407.895
    Northing (m) :  368857.413
    Height Information
    Vertical datum :   AHD71
    Height (m) :         28.095
    RM6
    Geographical CoordinatesMGA2020 Coordinates
    Horizontal datum : GDA2020Zone :             50
    Latitude :     S 31 54 12.16024Easting (m) :   399505.831
    Longitude :  E 115 56 13.94535Northing (m) :  6469781.452
    Project Grid - PCG2020Perth Coastal Grid 2020
    Easting (m) :   61402.160
    Northing (m) :  368858.587
    Height Information
    Vertical datum :   AHD71
    Height (m) :         28.060
    Cadastral Connection Fieldbooks
    DOLA 81219
    LG 105355
    LG 142978
    LG 97525
    W.ROSE 100
    Special Notes
    Unknown DateBAYS6,RM1 & BAYS1 are co-linear. BAYS6,RM3 & BAYS26 RM4 are co-linear.
    26/11/2003W.P. ON POLE 12m @ 340deg.
    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 6
    Alternate names : Map ref.: BAYSWATER BG34 4.6
    APREF/NGCA codes: Database number : 103175
    Stamp name:      BAYS6 Date established :   01/04/1971
    Physical status : located (BCE Surveying) Phys. status date :  27/05/2022
    Physical type :    brass plaqueHatch cover type : metal
    Mark set in :        concreteAccess type : 2 wheel drive
    Geographical CoordinatesMGA94 Coordinates
    Horizontal datum : GDA94Zone :             50
    Latitude :     S 31 54 12.26502Easting (m) :   399507.502
    Longitude :  E 115 56 14.00777Northing (m) :  6469778.242
    Convergence :       -0 33 42.16
    Point scale factor : 0.99972454
    Coordinate date :       09/10/2000
    Horizontal method :   Geodetic-TerrestrialCadastral connection : Exists
    Relative horiz. accuracy :       20ppm ** Estimated relative uncertainty to adjacent marks
    Positional uncertainty (m) : 0.022 (95% Confidence level)
    Error Ellipse
    Semi-major axis (m) : 0.023
    Semi-minor axis (m) : 0.020
    Azimuth of semi-major axis (deg) : 27 0 0
    ** Projection coordinates are calculated from the geographical coordinates detailed above
    Project Grid - PCG94Perth Coastal Grid 1994
    Easting (m) :   61403.797
    Northing (m) :  268855.358
    Convergence :       0 3 49.37
    Point scale factor : 1.00000066
    Height Information
    Vertical datum :   AHD71Height type :          Orthometric
    Height (m) :         28.267Height date :          04/05/2000
    Established by :  Dept of Land Admin.State :                    Final
    Vertical method : Spirit LevellingVertical accuracy : 12rootK
    Derived GDA94 ellipsoidal height (m) : -3.608N-Value (m) :          -31.875
    Geoid model :         AUSGeoid09 V1.01
    ** Derived GDA94 ellipsoidal height: h = H + N Interpolation :         Bi-Cubic
    Vertical datum :   GDA2020Height type :          Ellipsoidal
    Height (m) :         -3.700Height date :          26/06/2023
    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 : destroyed (JBA Surveys) Date :   01/11/2004
    Phys. type :    spikeSet in : concrete
    Azimuth :           102 52 41Type :   True azimuth
    Distance (m) :    4.150Type :   Horizontal
    Height diff. (m) : -0.064Type :   Spirit Levelling
    RM to GL (m) :   None
    RM2 Phys. status : located (BCE Surveying) Date :   27/05/2022
    Phys. type :    spikeSet in : concrete
    Azimuth :           192 8 41Type :   True azimuth
    Distance (m) :    2.130Type :   Horizontal
    Height diff. (m) : -0.297Type :   Spirit Levelling
    RM to GL (m) :   0.250
    RM3 Phys. status : destroyed (JBA Surveys) Date :   01/11/2004
    Phys. type :    spikeSet in : concrete
    Azimuth :           272 41 50Type :   True azimuth
    Distance (m) :    3.590Type :   Horizontal
    Height diff. (m) : -0.326Type :   Spirit Levelling
    RM to GL (m) :   None
    RM5 Phys. status : located (BCE Surveying) Date :   27/05/2022
    Phys. type :    spikeSet in : concrete
    Azimuth :           79 50 6Type :   True azimuth
    Distance (m) :    3.124Type :   Horizontal
    Height diff. (m) : -0.172Type :   Spirit Levelling
    RM to GL (m) :   0.300
    RM6 Phys. status : located (BCE Surveying) Date :   27/05/2022
    Phys. type :    spikeSet in : concrete
    Azimuth :           302 51 21Type :   True azimuth
    Distance (m) :    3.168Type :   Horizontal
    Height diff. (m) : -0.207Type :   Spirit Levelling
    RM to GL (m) :   0.300
    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 31 54 12.29505Easting (m) :   399511.555
    Longitude :  E 115 56 14.16174Northing (m) :  6469777.357
    Project Grid - PCG94Perth Coastal Grid 1994
    Easting (m) :   61407.841
    Northing (m) :  268854.428
    Height Information
    Vertical datum :   AHD71
    Height (m) :         28.203
    RM2
    Geographical CoordinatesMGA94 Coordinates
    Horizontal datum : GDA94Zone :             50
    Latitude :     S 31 54 12.33263Easting (m) :   399507.074
    Longitude :  E 115 56 13.99072Northing (m) :  6469776.156
    Project Grid - PCG94Perth Coastal Grid 1994
    Easting (m) :   61403.346
    Northing (m) :  268853.276
    Height Information
    Vertical datum :   AHD71
    Height (m) :         27.970
    RM3
    Geographical CoordinatesMGA94 Coordinates
    Horizontal datum : GDA94Zone :             50
    Latitude :     S 31 54 12.25954Easting (m) :   399503.915
    Longitude :  E 115 56 13.87129Northing (m) :  6469778.376
    Project Grid - PCG94Perth Coastal Grid 1994
    Easting (m) :   61400.211
    Northing (m) :  268855.531
    Height Information
    Vertical datum :   AHD71
    Height (m) :         27.941
    RM5
    Geographical CoordinatesMGA94 Coordinates
    Horizontal datum : GDA94Zone :             50
    Latitude :     S 31 54 12.24712Easting (m) :   399510.570
    Longitude :  E 115 56 14.12480Northing (m) :  6469778.823
    Project Grid - PCG94Perth Coastal Grid 1994
    Easting (m) :   61406.872
    Northing (m) :  268855.906
    Height Information
    Vertical datum :   AHD71
    Height (m) :         28.095
    RM6
    Geographical CoordinatesMGA94 Coordinates
    Horizontal datum : GDA94Zone :             50
    Latitude :     S 31 54 12.20922Easting (m) :   399504.825
    Longitude :  E 115 56 13.90649Northing (m) :  6469779.934
    Project Grid - PCG94Perth Coastal Grid 1994
    Easting (m) :   61401.137
    Northing (m) :  268857.080
    Height Information
    Vertical datum :   AHD71
    Height (m) :         28.060
    Cadastral Connection Fieldbooks
    DOLA 81219
    LG 105355
    LG 142978
    LG 97525
    W.ROSE 100
    Special Notes
    Unknown DateBAYS6,RM1 & BAYS1 are co-linear. BAYS6,RM3 & BAYS26 RM4 are co-linear.
    26/11/2003W.P. ON POLE 12m @ 340deg.