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    SSM     BAYSWATER 1
    Alternate names : Map ref.: BAYSWATER BG34 4.6
    APREF/NGCA codes: Database number : 103130
    Stamp name:      BAYS1 Date established :   01/04/1971
    Physical status : located (Main Roads Western Austra)Phys. status date :  21/06/2023
    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 20.31013Easting (m) :   399908.666
    Longitude :  E 115 56 29.18819Northing (m) :  6469534.423
    Convergence :       -0 33 34.27
    Point scale factor : 0.99972355
    Coordinate date :       07/05/2020
    Horizontal method :   Geodetic-TerrestrialCadastral connection : Exists
    Relative horiz. accuracy :       30ppm ** Estimated relative uncertainty to adjacent marks
    Positional uncertainty (m) : 0.023 (95% Confidence level)
    Error Ellipse
    Semi-major axis (m) : 0.026
    Semi-minor axis (m) : 0.018
    Azimuth of semi-major axis (m) : 2 52 47
    ** Projection coordinates are calculated from the geographical coordinates detailed above
    Project Grid - PCG2020Perth Coastal Grid 2020
    Easting (m) :   61802.386
    Northing (m) :  368607.106
    Convergence :       0 3 57.41
    Point scale factor : 1.00000078
    Height Information
    Vertical datum :   AHD71Height type :          Orthometric
    Height (m) :         18.802Height date :          04/05/2000
    Established by :  Dept of Land Admin.State :                    Final
    Vertical method : Spirit LevellingVertical accuracy : 12rootK
    Derived GDA2020 ellipsoidal height (m) : -13.087N-Value (m) :          -31.889
    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 : located Date :   01/08/1990
    Phys. type :    spikeSet in : concrete
    Azimuth :           181 5 6Type :   True azimuth
    Distance (m) :    4.025Type :   Horizontal
    Height diff. (m) : -0.804Type :   Spirit Levelling
    RM to GL (m) :   None
    RM3 Phys. status : located Date :   01/08/1990
    Phys. type :    spikeSet in : concrete
    Azimuth :           92 54 21Type :   True azimuth
    Distance (m) :    3.045Type :   Horizontal
    Height diff. (m) : -0.754Type :   Spirit Levelling
    RM to GL (m) :   None
    RM4 Phys. status : established Date :   20/06/1988
    Phys. type :    spikeSet in : concrete
    Azimuth :           167 15 6Type :   True azimuth
    Distance (m) :    21.690Type :   Horizontal
    Height diff. (m) : NoneType :   
    RM to GL (m) :   None
    RM5 Phys. status : located (McMullen Nolan Group) Date :   21/02/2020
    Phys. type :    spikeSet in : concrete
    Azimuth :           68 6 45Type :   True azimuth
    Distance (m) :    5.536Type :   Horizontal
    Height diff. (m) : -0.371Type :   Spirit Levelling
    RM to GL (m) :   None
    RM6 Phys. status : located (McMullen Nolan Group) Date :   21/02/2020
    Phys. type :    spikeSet in : concrete
    Azimuth :           158 6 45Type :   True azimuth
    Distance (m) :    4.636Type :   Horizontal
    Height diff. (m) : -0.243Type :   Spirit Levelling
    RM to GL (m) :   None
    RM7 Phys. status : destroyed (Landgate) Date :   18/03/2020
    Phys. type :    spikeSet in : concrete
    Azimuth :           248 6 45Type :   True azimuth
    Distance (m) :    7.265Type :   Horizontal
    Height diff. (m) : -0.239Type :   Spirit Levelling
    RM to GL (m) :   None
    RM8 Phys. status : located (BCE Surveying) Date :   27/05/2022
    Phys. type :    masonary nailSet in : concrete
    Azimuth :           122 14 47Type :   True azimuth
    Distance (m) :    11.327Type :   Horizontal
    Height diff. (m) : 0.247Type :   Spirit Levelling
    RM to GL (m) :   None
    RM9 Phys. status : located (BCE Surveying) Date :   27/05/2022
    Phys. type :    Set in :
    Azimuth :           267 31 33Type :   True azimuth
    Distance (m) :    12.518Type :   Horizontal
    Height diff. (m) : -0.030Type :   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 31 54 20.44078Easting (m) :   399908.629
    Longitude :  E 115 56 29.18529Northing (m) :  6469530.399
    Project Grid - PCG2020Perth Coastal Grid 2020
    Easting (m) :   61802.305
    Northing (m) :  368603.082
    Height Information
    Vertical datum :   AHD71
    Height (m) :         17.998
    RM3
    Geographical CoordinatesMGA2020 Coordinates
    Horizontal datum : GDA2020Zone :             50
    Latitude :     S 31 54 20.31514Easting (m) :   399911.708
    Longitude :  E 115 56 29.30393Northing (m) :  6469534.298
    Project Grid - PCG2020Perth Coastal Grid 2020
    Easting (m) :   61805.427
    Northing (m) :  368606.948
    Height Information
    Vertical datum :   AHD71
    Height (m) :         18.048
    RM4
    Geographical CoordinatesMGA2020 Coordinates
    Horizontal datum : GDA2020Zone :             50
    Latitude :     S 31 54 20.99696Easting (m) :   399913.657
    Longitude :  E 115 56 29.37035Northing (m) :  6469513.321
    Project Grid - PCG2020Perth Coastal Grid 2020
    Easting (m) :   61807.148
    Northing (m) :  368585.945
    Height Information
    Vertical datum :   
    Height (m) :         No height available
    RM5
    Geographical CoordinatesMGA2020 Coordinates
    Horizontal datum : GDA2020Zone :             50
    Latitude :     S 31 54 20.24313Easting (m) :   399913.781
    Longitude :  E 115 56 29.38370Northing (m) :  6469536.536
    Project Grid - PCG2020Perth Coastal Grid 2020
    Easting (m) :   61807.525
    Northing (m) :  368609.164
    Height Information
    Vertical datum :   AHD71
    Height (m) :         18.431
    RM6
    Geographical CoordinatesMGA2020 Coordinates
    Horizontal datum : GDA2020Zone :             50
    Latitude :     S 31 54 20.44979Easting (m) :   399910.436
    Longitude :  E 115 56 29.25396Northing (m) :  6469530.139
    Project Grid - PCG2020Perth Coastal Grid 2020
    Easting (m) :   61804.109
    Northing (m) :  368602.802
    Height Information
    Vertical datum :   AHD71
    Height (m) :         18.559
    RM7
    Geographical CoordinatesMGA2020 Coordinates
    Horizontal datum : GDA2020Zone :             50
    Latitude :     S 31 54 20.39806Easting (m) :   399901.953
    Longitude :  E 115 56 28.93162Northing (m) :  6469531.650
    Project Grid - PCG2020Perth Coastal Grid 2020
    Easting (m) :   61795.641
    Northing (m) :  368604.405
    Height Information
    Vertical datum :   AHD71
    Height (m) :         18.563
    RM8
    Geographical CoordinatesMGA2020 Coordinates
    Horizontal datum : GDA2020Zone :             50
    Latitude :     S 31 54 20.50634Easting (m) :   399918.302
    Longitude :  E 115 56 29.55279Northing (m) :  6469528.475
    Project Grid - PCG2020Perth Coastal Grid 2020
    Easting (m) :   61811.959
    Northing (m) :  368601.051
    Height Information
    Vertical datum :   AHD71
    Height (m) :         19.049
    RM9
    Geographical CoordinatesMGA2020 Coordinates
    Horizontal datum : GDA2020Zone :             50
    Latitude :     S 31 54 20.32767Easting (m) :   399896.169
    Longitude :  E 115 56 28.71221Northing (m) :  6469533.761
    Project Grid - PCG2020Perth Coastal Grid 2020
    Easting (m) :   61789.879
    Northing (m) :  368606.580
    Height Information
    Vertical datum :   AHD71
    Height (m) :         18.772
    Cadastral Connection Fieldbooks
    DLI 93137
    DOLA 81219
    Special Notes
    Unknown DateBayswater 1 has been re-established by placing a new mark directly above the original mark. Mr G. Horne 1/08/1990.
    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 1
    Alternate names : Map ref.: BAYSWATER BG34 4.6
    APREF/NGCA codes: Database number : 103130
    Stamp name:      BAYS1 Date established :   01/04/1971
    Physical status : located (Main Roads Western Austra)Phys. status date :  21/06/2023
    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 20.35888Easting (m) :   399907.668
    Longitude :  E 115 56 29.14964Northing (m) :  6469532.912
    Convergence :       -0 33 34.29
    Point scale factor : 0.99972355
    Coordinate date :       05/05/2020
    Horizontal method :   Global Position SystemCadastral connection : Exists
    Relative horiz. accuracy :       15ppm ** Estimated relative uncertainty to adjacent marks
    Positional uncertainty (m) : 0.023 (95% Confidence level)
    Error Ellipse
    Semi-major axis (m) : 0.028
    Semi-minor axis (m) : 0.016
    Azimuth of semi-major axis (m) : 13 0 0
    ** Projection coordinates are calculated from the geographical coordinates detailed above
    Project Grid - PCG94Perth Coastal Grid 1994
    Easting (m) :   61801.371
    Northing (m) :  268605.605
    Convergence :       0 3 57.39
    Point scale factor : 1.00000078
    Height Information
    Vertical datum :   AHD71Height type :          Orthometric
    Height (m) :         18.802Height date :          04/05/2000
    Established by :  Dept of Land Admin.State :                    Final
    Vertical method : Spirit LevellingVertical accuracy : 12rootK
    Derived GDA94 ellipsoidal height (m) : -13.03N-Value (m) :          -31.832
    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 : located Date :   01/08/1990
    Phys. type :    spikeSet in : concrete
    Azimuth :           181 5 6Type :   True azimuth
    Distance (m) :    4.025Type :   Horizontal
    Height diff. (m) : -0.804Type :   Spirit Levelling
    RM to GL (m) :   None
    RM3 Phys. status : located Date :   01/08/1990
    Phys. type :    spikeSet in : concrete
    Azimuth :           92 54 21Type :   True azimuth
    Distance (m) :    3.045Type :   Horizontal
    Height diff. (m) : -0.754Type :   Spirit Levelling
    RM to GL (m) :   None
    RM4 Phys. status : established Date :   20/06/1988
    Phys. type :    spikeSet in : concrete
    Azimuth :           167 15 6Type :   True azimuth
    Distance (m) :    21.690Type :   Horizontal
    Height diff. (m) : NoneType :   
    RM to GL (m) :   None
    RM5 Phys. status : located (McMullen Nolan Group) Date :   21/02/2020
    Phys. type :    spikeSet in : concrete
    Azimuth :           68 6 45Type :   True azimuth
    Distance (m) :    5.536Type :   Horizontal
    Height diff. (m) : -0.371Type :   Spirit Levelling
    RM to GL (m) :   None
    RM6 Phys. status : located (McMullen Nolan Group) Date :   21/02/2020
    Phys. type :    spikeSet in : concrete
    Azimuth :           158 6 45Type :   True azimuth
    Distance (m) :    4.636Type :   Horizontal
    Height diff. (m) : -0.243Type :   Spirit Levelling
    RM to GL (m) :   None
    RM7 Phys. status : destroyed (Landgate) Date :   18/03/2020
    Phys. type :    spikeSet in : concrete
    Azimuth :           248 6 45Type :   True azimuth
    Distance (m) :    7.265Type :   Horizontal
    Height diff. (m) : -0.239Type :   Spirit Levelling
    RM to GL (m) :   None
    RM8 Phys. status : located (BCE Surveying) Date :   27/05/2022
    Phys. type :    masonary nailSet in : concrete
    Azimuth :           122 14 47Type :   True azimuth
    Distance (m) :    11.327Type :   Horizontal
    Height diff. (m) : 0.247Type :   Spirit Levelling
    RM to GL (m) :   None
    RM9 Phys. status : located (BCE Surveying) Date :   27/05/2022
    Phys. type :    Set in :
    Azimuth :           267 31 33Type :   True azimuth
    Distance (m) :    12.518Type :   Horizontal
    Height diff. (m) : -0.030Type :   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 31 54 20.48953Easting (m) :   399907.631
    Longitude :  E 115 56 29.14674Northing (m) :  6469528.888
    Project Grid - PCG94Perth Coastal Grid 1994
    Easting (m) :   61801.290
    Northing (m) :  268601.581
    Height Information
    Vertical datum :   AHD71
    Height (m) :         17.998
    RM3
    Geographical CoordinatesMGA94 Coordinates
    Horizontal datum : GDA94Zone :             50
    Latitude :     S 31 54 20.36389Easting (m) :   399910.710
    Longitude :  E 115 56 29.26538Northing (m) :  6469532.787
    Project Grid - PCG94Perth Coastal Grid 1994
    Easting (m) :   61804.412
    Northing (m) :  268605.447
    Height Information
    Vertical datum :   AHD71
    Height (m) :         18.048
    RM4
    Geographical CoordinatesMGA94 Coordinates
    Horizontal datum : GDA94Zone :             50
    Latitude :     S 31 54 21.04571Easting (m) :   399912.659
    Longitude :  E 115 56 29.33180Northing (m) :  6469511.810
    Project Grid - PCG94Perth Coastal Grid 1994
    Easting (m) :   61806.133
    Northing (m) :  268584.444
    Height Information
    Vertical datum :   
    Height (m) :         No height available
    RM5
    Geographical CoordinatesMGA94 Coordinates
    Horizontal datum : GDA94Zone :             50
    Latitude :     S 31 54 20.29188Easting (m) :   399912.783
    Longitude :  E 115 56 29.34515Northing (m) :  6469535.025
    Project Grid - PCG94Perth Coastal Grid 1994
    Easting (m) :   61806.511
    Northing (m) :  268607.663
    Height Information
    Vertical datum :   AHD71
    Height (m) :         18.431
    RM6
    Geographical CoordinatesMGA94 Coordinates
    Horizontal datum : GDA94Zone :             50
    Latitude :     S 31 54 20.49854Easting (m) :   399909.438
    Longitude :  E 115 56 29.21541Northing (m) :  6469528.628
    Project Grid - PCG94Perth Coastal Grid 1994
    Easting (m) :   61803.095
    Northing (m) :  268601.301
    Height Information
    Vertical datum :   AHD71
    Height (m) :         18.559
    RM7
    Geographical CoordinatesMGA94 Coordinates
    Horizontal datum : GDA94Zone :             50
    Latitude :     S 31 54 20.44681Easting (m) :   399900.955
    Longitude :  E 115 56 28.89307Northing (m) :  6469530.139
    Project Grid - PCG94Perth Coastal Grid 1994
    Easting (m) :   61794.627
    Northing (m) :  268602.905
    Height Information
    Vertical datum :   AHD71
    Height (m) :         18.563
    RM8
    Geographical CoordinatesMGA94 Coordinates
    Horizontal datum : GDA94Zone :             50
    Latitude :     S 31 54 20.55509Easting (m) :   399917.304
    Longitude :  E 115 56 29.51424Northing (m) :  6469526.964
    Project Grid - PCG94Perth Coastal Grid 1994
    Easting (m) :   61810.944
    Northing (m) :  268599.551
    Height Information
    Vertical datum :   AHD71
    Height (m) :         19.049
    RM9
    Geographical CoordinatesMGA94 Coordinates
    Horizontal datum : GDA94Zone :             50
    Latitude :     S 31 54 20.37642Easting (m) :   399895.171
    Longitude :  E 115 56 28.67366Northing (m) :  6469532.250
    Project Grid - PCG94Perth Coastal Grid 1994
    Easting (m) :   61788.864
    Northing (m) :  268605.079
    Height Information
    Vertical datum :   AHD71
    Height (m) :         18.772
    Cadastral Connection Fieldbooks
    DLI 93137
    DOLA 81219
    Special Notes
    Unknown DateBayswater 1 has been re-established by placing a new mark directly above the original mark. Mr G. Horne 1/08/1990.