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    SSM     BAYSWATER 78
    Alternate names : Map ref.: BAYSWATER BG34 4.6
    APREF/NGCA codes: 85WTDatabase number : 103187
    Stamp name:      BAYS78 Date established :   01/10/1979
    Physical status : located (Main Roads Western Austra)Phys. status date :  22/09/2023
    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 55 13.01055Easting (m) :   401967.919
    Longitude :  E 115 57 46.99588Northing (m) :  6467931.458
    Convergence :       -0 32 53.94
    Point scale factor : 0.99971852
    Coordinate date :       13/09/2022
    Horizontal method :   GNSS Survey NetworkCadastral connection : Exists
    Relative horiz. accuracy :       5ppm ** 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 (m) : 155 8 5
    ** Projection coordinates are calculated from the geographical coordinates detailed above
    Project Grid - PCG2020Perth Coastal Grid 2020
    Easting (m) :   63844.587
    Northing (m) :  366981.298
    Convergence :       0 4 38.64
    Point scale factor : 1.00000142
    Height Information
    Vertical datum :   AHD71Height type :          Orthometric
    Height (m) :         10.046Height date :          28/03/2008
    Established by :  Main Roads Western AustraliaState :                    Final
    Vertical method : Spirit LevellingVertical accuracy : 12rootK
    Derived GDA2020 ellipsoidal height (m) : -21.592N-Value (m) :          -31.638
    Geoid model :         AusGeoid2020
    ** Derived GDA2020 ellipsoidal height: h = H + N Interpolation :         Bi-Cubic
    Vertical datum :   GDA2020Height type :          Ellipsoidal
    Height (m) :         -21.605Height date :          13/09/2022
    Established by :  LandgateState :                    Final
    Vertical method : GNSS Survey NetworkVertical accuracy : 0.025m
    Mark to hatch cover :  
    Mark to ground level : 0.27
    RM Info** Warning: RM azimuths and coordinates are unverified
    ** Azimuth, distance and height difference are relative to main mark
    RM1 Phys. status : located (Veris Australia Pty Ltd) Date :   17/03/2022
    Phys. type :    spikeSet in : concrete
    Azimuth :           306 39 58Type :   True azimuth
    Distance (m) :    4.126Type :   Horizontal
    Height diff. (m) : -0.042Type :   Spirit Levelling
    RM to GL (m) :   0.200
    RM2 Phys. status : located (Veris Australia Pty Ltd) Date :   17/03/2022
    Phys. type :    spikeSet in : concrete
    Azimuth :           349 20 57Type :   True azimuth
    Distance (m) :    5.650Type :   Horizontal
    Height diff. (m) : -0.020Type :   Spirit Levelling
    RM to GL (m) :   0.300
    RM3 Phys. status : damaged (Veris Australia Pty Ltd) Date :   17/03/2022
    Phys. type :    spikeSet in : concrete
    Azimuth :           53 49 13Type :   True azimuth
    Distance (m) :    4.588Type :   Horizontal
    Height diff. (m) : NoneType :   
    RM to GL (m) :   None
    RM4 Phys. status : established (Veris Australia Pty L)Date :   17/03/2022
    Phys. type :    spikeSet in : concrete
    Azimuth :           58 45 47Type :   True azimuth
    Distance (m) :    3.287Type :   Horizontal
    Height diff. (m) : -0.212Type :   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 55 12.93056Easting (m) :   401964.587
    Longitude :  E 115 57 46.86990Northing (m) :  6467933.890
    Project Grid - PCG2020Perth Coastal Grid 2020
    Easting (m) :   63841.280
    Northing (m) :  366983.766
    Height Information
    Vertical datum :   AHD71
    Height (m) :         10.004
    RM2
    Geographical CoordinatesMGA2020 Coordinates
    Horizontal datum : GDA2020Zone :             50
    Latitude :     S 31 55 12.83028Easting (m) :   401966.822
    Longitude :  E 115 57 46.95613Northing (m) :  6467936.999
    Project Grid - PCG2020Perth Coastal Grid 2020
    Easting (m) :   63843.550
    Northing (m) :  366986.852
    Height Information
    Vertical datum :   AHD71
    Height (m) :         10.026
    RM3
    Geographical CoordinatesMGA2020 Coordinates
    Horizontal datum : GDA2020Zone :             50
    Latitude :     S 31 55 12.92262Easting (m) :   401971.596
    Longitude :  E 115 57 47.13685Northing (m) :  6467934.201
    Project Grid - PCG2020Perth Coastal Grid 2020
    Easting (m) :   63848.293
    Northing (m) :  366984.001
    Height Information
    Vertical datum :   
    Height (m) :         No height available
    RM4
    Geographical CoordinatesMGA2020 Coordinates
    Horizontal datum : GDA2020Zone :             50
    Latitude :     S 31 55 12.95521Easting (m) :   401970.713
    Longitude :  E 115 57 47.10286Northing (m) :  6467933.189
    Project Grid - PCG2020Perth Coastal Grid 2020
    Easting (m) :   63847.399
    Northing (m) :  366982.998
    Height Information
    Vertical datum :   AHD71
    Height (m) :         9.834
    Cadastral Connection Fieldbooks
    FB H.A.KUENEN 2 *
    Special Notes
    Unknown DateBAYS78,RM1 & BAYS36 are co-linear. BAYS78,RM3 & BAYS79 are co-linear.
    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 78
    Alternate names : Map ref.: BAYSWATER BG34 4.6
    APREF/NGCA codes: 85WTDatabase number : 103187
    Stamp name:      BAYS78 Date established :   01/10/1979
    Physical status : located (Main Roads Western Austra)Phys. status date :  22/09/2023
    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 55 13.05953Easting (m) :   401966.912
    Longitude :  E 115 57 46.95697Northing (m) :  6467929.940
    Convergence :       -0 32 53.96
    Point scale factor : 0.99971852
    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) : 0.021
    Azimuth of semi-major axis (m) : 150 0 0
    ** Projection coordinates are calculated from the geographical coordinates detailed above
    Project Grid - PCG94Perth Coastal Grid 1994
    Easting (m) :   63843.562
    Northing (m) :  266979.790
    Convergence :       0 4 38.62
    Point scale factor : 1.00000142
    Height Information
    Vertical datum :   AHD71Height type :          Orthometric
    Height (m) :         10.046Height date :          28/03/2008
    Established by :  Main Roads Western AustraliaState :                    Final
    Vertical method : Spirit LevellingVertical accuracy : 12rootK
    Derived GDA94 ellipsoidal height (m) : -21.545N-Value (m) :          -31.591
    Geoid model :         AUSGeoid09 V1.01
    ** Derived GDA94 ellipsoidal height: h = H + N Interpolation :         Bi-Cubic
    Vertical datum :   GDA2020Height type :          Ellipsoidal
    Height (m) :         -21.605Height date :          13/09/2022
    Established by :  LandgateState :                    Final
    Vertical method : GNSS Survey NetworkVertical accuracy : 0.025m
    Mark to hatch cover :  
    Mark to ground level : 0.27
    RM Info** Warning: RM azimuths and coordinates are unverified
    ** Azimuth, distance and height difference are relative to main mark
    RM1 Phys. status : located (Veris Australia Pty Ltd) Date :   17/03/2022
    Phys. type :    spikeSet in : concrete
    Azimuth :           306 39 58Type :   True azimuth
    Distance (m) :    4.126Type :   Horizontal
    Height diff. (m) : -0.042Type :   Spirit Levelling
    RM to GL (m) :   0.200
    RM2 Phys. status : located (Veris Australia Pty Ltd) Date :   17/03/2022
    Phys. type :    spikeSet in : concrete
    Azimuth :           349 20 57Type :   True azimuth
    Distance (m) :    5.650Type :   Horizontal
    Height diff. (m) : -0.020Type :   Spirit Levelling
    RM to GL (m) :   0.300
    RM3 Phys. status : damaged (Veris Australia Pty Ltd) Date :   17/03/2022
    Phys. type :    spikeSet in : concrete
    Azimuth :           53 49 13Type :   True azimuth
    Distance (m) :    4.588Type :   Horizontal
    Height diff. (m) : NoneType :   
    RM to GL (m) :   None
    RM4 Phys. status : established (Veris Australia Pty L)Date :   17/03/2022
    Phys. type :    spikeSet in : concrete
    Azimuth :           58 45 47Type :   True azimuth
    Distance (m) :    3.287Type :   Horizontal
    Height diff. (m) : -0.212Type :   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 55 12.97954Easting (m) :   401963.580
    Longitude :  E 115 57 46.83099Northing (m) :  6467932.372
    Project Grid - PCG94Perth Coastal Grid 1994
    Easting (m) :   63840.256
    Northing (m) :  266982.259
    Height Information
    Vertical datum :   AHD71
    Height (m) :         10.004
    RM2
    Geographical CoordinatesMGA94 Coordinates
    Horizontal datum : GDA94Zone :             50
    Latitude :     S 31 55 12.87926Easting (m) :   401965.815
    Longitude :  E 115 57 46.91722Northing (m) :  6467935.481
    Project Grid - PCG94Perth Coastal Grid 1994
    Easting (m) :   63842.526
    Northing (m) :  266985.344
    Height Information
    Vertical datum :   AHD71
    Height (m) :         10.026
    RM3
    Geographical CoordinatesMGA94 Coordinates
    Horizontal datum : GDA94Zone :             50
    Latitude :     S 31 55 12.97160Easting (m) :   401970.588
    Longitude :  E 115 57 47.09794Northing (m) :  6467932.683
    Project Grid - PCG94Perth Coastal Grid 1994
    Easting (m) :   63847.269
    Northing (m) :  266982.494
    Height Information
    Vertical datum :   
    Height (m) :         No height available
    RM4
    Geographical CoordinatesMGA94 Coordinates
    Horizontal datum : GDA94Zone :             50
    Latitude :     S 31 55 13.00419Easting (m) :   401969.705
    Longitude :  E 115 57 47.06395Northing (m) :  6467931.671
    Project Grid - PCG94Perth Coastal Grid 1994
    Easting (m) :   63846.375
    Northing (m) :  266981.491
    Height Information
    Vertical datum :   AHD71
    Height (m) :         9.834
    Cadastral Connection Fieldbooks
    FB H.A.KUENEN 2 *
    Special Notes
    Unknown DateBAYS78,RM1 & BAYS36 are co-linear. BAYS78,RM3 & BAYS79 are co-linear.