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    SSM     KALAMUNDA 15A
    Alternate names : Map ref.: KALAMUNDA BG34 5.5
    APREF/NGCA codes: Database number : 103048
    Stamp name:      KAL15A Date established :   31/08/1983
    Physical status : located (RM Surveys) Phys. status date :  28/02/2019
    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 58 39.95339Easting (m) :   404348.493
    Longitude :  E 115 59 15.37360Northing (m) :  6461581.337
    Convergence :       -0 32 10.30
    Point scale factor : 0.99971283
    Coordinate date :       13/08/2018
    Horizontal method :   GNSS Survey NetworkCadastral connection : Exists
    Relative horiz. accuracy :       30ppm ** 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) : 0.017
    Azimuth of semi-major axis (deg) : 27 56 11
    ** Projection coordinates are calculated from the geographical coordinates detailed above
    Project Grid - PCG2020Perth Coastal Grid 2020
    Easting (m) :   66156.277
    Northing (m) :  360603.712
    Convergence :       0 5 25.90
    Point scale factor : 1.00000228
    Height Information
    Vertical datum :   AHD71Height type :          Orthometric
    Height (m) :         25.364Height date :          04/05/2000
    Established by :  Dept of Land Admin.State :                    Final
    Vertical method : Spirit LevellingVertical accuracy : 12rootK
    Derived GDA2020 ellipsoidal height (m) : -5.886N-Value (m) :          -31.25
    Geoid model :         AusGeoid2020
    ** Derived GDA2020 ellipsoidal height: h = H + N Interpolation :         Bi-Cubic
    Vertical datum :   GDA2020Height type :          Ellipsoidal
    Height (m) :         -5.880Height date :          15/08/2018
    Established by :  Geoscience AustraliaState :                    Final
    Vertical method : GNSS Survey NetworkVertical accuracy : 0.030m
    Mark to hatch cover :  0.168
    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 (John Bullock & Assoc.) Date :   01/06/2000
    Phys. type :    spikeSet in : concrete
    Azimuth :           3 37 36Type :   True azimuth
    Distance (m) :    2.917Type :   Horizontal
    Height diff. (m) : -0.263Type :   Spirit Levelling
    RM to GL (m) :   None
    RM2 Phys. status : located Date :   04/07/1997
    Phys. type :    spikeSet in : concrete
    Azimuth :           190 49 56Type :   True azimuth
    Distance (m) :    2.916Type :   Horizontal
    Height diff. (m) : -0.218Type :   Spirit Levelling
    RM to GL (m) :   None
    RM3 Phys. status : located (John Bullock & Assoc.) Date :   01/06/2000
    Phys. type :    spikeSet in : concrete
    Azimuth :           245 7 36Type :   True azimuth
    Distance (m) :    2.386Type :   Horizontal
    Height diff. (m) : -0.376Type :   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 58 39.85888Easting (m) :   404348.651
    Longitude :  E 115 59 15.38063Northing (m) :  6461584.249
    Project Grid - PCG2020Perth Coastal Grid 2020
    Easting (m) :   66156.466
    Northing (m) :  360606.623
    Height Information
    Vertical datum :   AHD71
    Height (m) :         25.101
    RM2
    Geographical CoordinatesMGA2020 Coordinates
    Horizontal datum : GDA2020Zone :             50
    Latitude :     S 31 58 40.04637Easting (m) :   404347.972
    Longitude :  E 115 59 15.35273Northing (m) :  6461578.469
    Project Grid - PCG2020Perth Coastal Grid 2020
    Easting (m) :   66155.724
    Northing (m) :  360600.849
    Height Information
    Vertical datum :   AHD71
    Height (m) :         25.146
    RM3
    Geographical CoordinatesMGA2020 Coordinates
    Horizontal datum : GDA2020Zone :             50
    Latitude :     S 31 58 39.98597Easting (m) :   404346.339
    Longitude :  E 115 59 15.29115Northing (m) :  6461580.313
    Project Grid - PCG2020Perth Coastal Grid 2020
    Easting (m) :   66154.111
    Northing (m) :  360602.712
    Height Information
    Vertical datum :   AHD71
    Height (m) :         24.988
    Cadastral Connection Fieldbooks
    DOLA 84753
    DOLA 89331
    Special Notes
    Unknown DateKEW34A;KAL15;RM3,KAL15A are co-linear.
    17/09/2018KAL 15A and RM's 1, 2, 3 covered by 1.4 metres of fill. Sept 2018
    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     KALAMUNDA 15A
    Alternate names : Map ref.: KALAMUNDA BG34 5.5
    APREF/NGCA codes: Database number : 103048
    Stamp name:      KAL15A Date established :   31/08/1983
    Physical status : located (RM Surveys) Phys. status date :  28/02/2019
    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 58 40.00193Easting (m) :   404347.505
    Longitude :  E 115 59 15.33541Northing (m) :  6461579.833
    Convergence :       -0 32 10.33
    Point scale factor : 0.99971283
    Coordinate date :       09/10/2000
    Horizontal method :   Global Position SystemCadastral connection : Exists
    Relative horiz. accuracy :       10ppm ** Estimated relative uncertainty to adjacent marks
    Positional uncertainty (m) : 0.008 (95% Confidence level)
    Error Ellipse
    Semi-major axis (m) : 0.009
    Semi-minor axis (m) : 0.007
    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) :   66155.272
    Northing (m) :  260602.218
    Convergence :       0 5 25.88
    Point scale factor : 1.00000228
    Height Information
    Vertical datum :   AHD71Height type :          Orthometric
    Height (m) :         25.364Height date :          04/05/2000
    Established by :  Dept of Land Admin.State :                    Final
    Vertical method : Spirit LevellingVertical accuracy : 12rootK
    Derived GDA94 ellipsoidal height (m) : -5.826N-Value (m) :          -31.19
    Geoid model :         AUSGeoid09 V1.01
    ** Derived GDA94 ellipsoidal height: h = H + N Interpolation :         Bi-Cubic
    Vertical datum :   GDA2020Height type :          Ellipsoidal
    Height (m) :         -5.880Height date :          15/08/2018
    Established by :  Geoscience AustraliaState :                    Final
    Vertical method : GNSS Survey NetworkVertical accuracy : 0.030m
    Mark to hatch cover :  0.168
    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 (John Bullock & Assoc.) Date :   01/06/2000
    Phys. type :    spikeSet in : concrete
    Azimuth :           3 37 36Type :   True azimuth
    Distance (m) :    2.917Type :   Horizontal
    Height diff. (m) : -0.263Type :   Spirit Levelling
    RM to GL (m) :   None
    RM2 Phys. status : located Date :   04/07/1997
    Phys. type :    spikeSet in : concrete
    Azimuth :           190 49 56Type :   True azimuth
    Distance (m) :    2.916Type :   Horizontal
    Height diff. (m) : -0.218Type :   Spirit Levelling
    RM to GL (m) :   None
    RM3 Phys. status : located (John Bullock & Assoc.) Date :   01/06/2000
    Phys. type :    spikeSet in : concrete
    Azimuth :           245 7 36Type :   True azimuth
    Distance (m) :    2.386Type :   Horizontal
    Height diff. (m) : -0.376Type :   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 58 39.90742Easting (m) :   404347.662
    Longitude :  E 115 59 15.34244Northing (m) :  6461582.745
    Project Grid - PCG94Perth Coastal Grid 1994
    Easting (m) :   66155.461
    Northing (m) :  260605.129
    Height Information
    Vertical datum :   AHD71
    Height (m) :         25.101
    RM2
    Geographical CoordinatesMGA94 Coordinates
    Horizontal datum : GDA94Zone :             50
    Latitude :     S 31 58 40.09491Easting (m) :   404346.984
    Longitude :  E 115 59 15.31454Northing (m) :  6461576.965
    Project Grid - PCG94Perth Coastal Grid 1994
    Easting (m) :   66154.719
    Northing (m) :  260599.355
    Height Information
    Vertical datum :   AHD71
    Height (m) :         25.146
    RM3
    Geographical CoordinatesMGA94 Coordinates
    Horizontal datum : GDA94Zone :             50
    Latitude :     S 31 58 40.03451Easting (m) :   404345.350
    Longitude :  E 115 59 15.25296Northing (m) :  6461578.809
    Project Grid - PCG94Perth Coastal Grid 1994
    Easting (m) :   66153.106
    Northing (m) :  260601.218
    Height Information
    Vertical datum :   AHD71
    Height (m) :         24.988
    Cadastral Connection Fieldbooks
    DOLA 84753
    DOLA 89331
    Special Notes
    Unknown DateKEW34A;KAL15;RM3,KAL15A are co-linear.
    17/09/2018KAL 15A and RM's 1, 2, 3 covered by 1.4 metres of fill. Sept 2018